ML20063P816: Difference between revisions
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| number = ML20063P816 | | number = ML20063P816 | ||
| issue date = 11/19/1975 | | issue date = 11/19/1975 | ||
| title = Instruction Manual,Rhr Svc Water Pumps,Enrico Fermi Atomic Power Plant Unit 2 | | title = Instruction Manual,Rhr Svc Water Pumps,Enrico Fermi Atomic Power Plant Unit 2 | ||
| author name = | | author name = | ||
| author affiliation = GOULDS PUMPS, INC. | | author affiliation = GOULDS PUMPS, INC. | ||
Latest revision as of 15:29, 6 January 2021
| ML20063P816 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 11/19/1975 |
| From: | GOULDS PUMPS, INC. |
| To: | |
| Shared Package | |
| ML20063P810 | List: |
| References | |
| PROC-751119, NUDOCS 8210150335 | |
| Download: ML20063P816 (43) | |
Text
{{#Wiki_filter:_ . I ' DOCUMENT C0flTROL
. E 1 1 - 5 1 - C - 0 01 A - S G - 0 3 2,- $ GOULDS PUP 1PS,INC.
kJ VERTICAL PUMP DIVISION , g4 novis ms ut a . Ell-51-C-001B-SG-002 E11-51-C-001C-SG-002 DSTRUCTION MANUE El1-51-C- 01D-SG-002 l l FISIDUAL HEAT RDOVAL SERVICE WATER PUMPS
\
ENRICO FERMI A'IOMIC POWER PIRiT - IEIT #2 E TEE DETROIT EDISON COMPANY , P. O.: IE 9203h i PRODUCT;0N D2PT. . 1 TECHN3CAE. E.C.ORAoy . E@MT NMRS: ENR!CO Fi.lRMI II ' En51-C001A !.l 1 E1151-Cools , '. : ; I i E1151-C001C _ ,j . E1151-CoolD !
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l MANUFACTUPID BY: - GOULDS PUMPS, INC. Vertical Pu=p Division f'ff,[/p V/j P. O. Box 125h ** / - City of Industry, California 91749 i REF. SHOP ORDER: , N301213 ., i l 8210150335 821011 .' DRADOCK05000g
GOULDS PUIVPS,INCe - VERTICAL PUMP DIVISION 5301213 . INSTRUCTION MANUAL: . TABLE OF C0!;"CITS Goulds Model VIT Installation and Operation Instructions , 1 (H 2. Allis-Chalmers Instructions - Large Frame Vertical Induction Maters , l I N301213 3 Pump Outline Drawing: [! D-1360
- k. Pump Sectional Drawing: :
Motor outline Drawing: 51-753-718 5 T-75-353 '
- 6. Pump Performance Curves: T-75-350 '
T-75-35h T-75-3k9 Pu=p Speed-Torque Curve: 73-1k9 7
- 8. . Repair Parts Data O
e
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c_ INSTALLATION ,
?a AND OPERATION kL j INSTRUCTIONS .
n IU j , l
- Wk GOULDS MODEL -
VIT F c hk2 ll. VERTICAL INDUSTRIAL TURBINE PUMP L .'s TABLE OF CONTENTS ., s..,;.. ,,.- .... b,
- s. .,;.. ....
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2 IV.B Starting 6 I Instatistion 2 IV.C Stopping , lA Receiving f 2 Assembly and IE Storage Y 7 t. 2 Disassembly 1C Location 2 7 1D installation 2 V Al Product Lube IE Assembly ent 7 I r an A H fow haft eto' * # " g i 'J 5 'g*o'33 ll B Gear ive Units 8 5 VC Assembly f:- ' { li-C Impet'er Clearance 8 6 V.D Keyed Impe!'ers II D Impefier Clea'acce 6 Bj* ,)#y,R.Les 8 GOULDS PUMPS 1 . VERTICAL PUMP DIVISION lll.A l",;*&,5" "P 6 to c.tv os eno . ,v. c...em~. .= ill B Check List VI Troubfe Cheet List 11 6 Vil Parts List IV.A Prior to Starting - h% MA
~~ - .-_
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SECTION I INSTALLATicN and bolts tight, there should be i" be used to a!!ow movement for the l>A Receiving En*I P05Ilionin9 of the bolts. about %" gap between Canges. l
- Tha unit should be carefully sup. R* Peat i e above procedure for when mounted directly on structural
- rt:d and unloaded. Under no steel framework, the pump should be ',',* ,
, mP
" . ,n9%
ci cumstances should it be dropped , located directfy over or as near as er r:ceive rough handling. Esercise possible to the main building mem-H. Screw lower headshaft in place. ( , the same care with the pump es with Remove packing box assembly (3) bers, beams or walls. Basepfate ' tiher pieces of engineering from discharge head (2) so as not should be bolted to the supports to equipment. avoid distortion, prevent vibration to incur damage to the shaft. l Al Checking Shipment and retain proper alignment. l. Lower head carefully over head. shaft, having Crst pfaced spider in A!! p:rts should be inspected upon '. reesipt for damaged or missmg 1.D Instellation recess of top column flange. Bott if the unit is 20' or less, it is usually column to head, then mount head esmponents, checking each item with the shipping manifest furnished. shipped completely assembled with to foundation. Any deficiency should be immedi- exception of drivers, vent pipin . 'I . Replace stuRing box assembly ctsly reported to the local transpo'* mechanical seals or packing an in I* '"9 *aut, ion to insure that y i:tien oRice of the carrier some cases, upper headshaftsif a Flexitall.ic gaiket ,a m its proper r:ipsnsible. This will prevent any VHS driver is su fied. All bolts and Position.(Refer to Fig.V(a)) esntroversy when claim is made and nuts should be e ected to insure that f:cilitate prompt and satisfactory they are securely tightened. Care 2. Assembly Enclosed Lineshaft cdjustment. must be exercised in the handling of gp;9* gg 3 p all parts. particularly the shaft, as it is machined to close toferences A. After the parts have been 1,B 5torage checked for damage, and flanges . for accurate alignment. ' if thz eq ipment must be stored for have been inspected, slide shaf t cny length of time, adequate pre. and tube into column pipe, taking cautions must be talen against 1.E Assembly care to protect threads. A clean daterioration or damage. lf storage 1. Open L.ineshaft (Pump ele- rag wound around the end is 1 I is sitensive, periodic inspection ment not assembled to column ample protees:a . . gainst dirt and 1 4 should be performed and rior to insta!!ation the pump shou d be
& heod) (Refer to Fig.1) damage. Let the tube extend fr about 6" below the column pipe A. After thoroughly checking the Cushed with clean water and cleaned and the shaft about 6" below th2 roughly. Storage should be in a parts and inspecting the flanges, the tube.
dry area where a reasonably constant position a suitable lifting device t:mperature can be maintamed. over foundation opening. B. Lowe.r cofumn asser-bfy (1) i Wchanical seal, if rovided. should B. Lower pumping unit (7) to a to a omt where ihe shaft si 5
+ be installed before the pump is stgh y above pump shaft point where shaft can be readily coup in9. Clean end of shaft ar.d
. . -P tace. coupfed to pump shaft and then threads. Put a few drops of oil on lower column section (5' with line the threads- DO NOT USE I.C L
- t** " f Unit shaft, afigning the bolt soles on THREAD DOPE, then lower until The pump shoufd be arranged so a5 the flanges. NOTE: Do not use shaf t enters coupling and thread is al.ow periodic ins ection. Dis. ;p, gread sealing compound on t derge piping shoutc be indepen. fhaft or shaft coupling. I'9 ' O"-
dently supported near the pump a,nd . C. Check the tube threads and l C. Make certa.m air re!!ef hole .m properly aligned so that no stram n end to be wre % are &am trcnsmitted to the pump when the shaft coupling centers at the shaft then oil and lower until tube rests Cenge bolts are tigh*ened. Any ends. on bearing at to of bowl assem. bly (2) and coup e together. misalignment m a column assembt D. Screw lineshaft into pumpshaft. l I cen cause vibration in the unit an Do not apply wrenches at the A e tube (3) is . . mplace. , reduce the life of the bearings, point where it may come in # ee anges and c at face w,ith contact with bearings. thin coat of thread dope or white I.Cl Foundations E. Place bearing pider (6)in lead and oil. , recess of column flange. E. Lown column p).in p! ace and The foundation should consist of ' l m:terial that will afford a permanent, b h "" "I 'b. " column bolt flanges together. rigid support for the basepfate. anunbly maling sure sp. i der rmg F. Remove bronze bearing (E) from j l Concrete foundat ons should be level entes recess ,m bottom flange tube and pu a few unas M l
,and bM!t on solid ground. Foundation 'I S t'*"- light turb:ne oil over shaf t. DO l bstts of the proper size should be NOT FILL THE TUBE. Dope L l embedded in the concrete, located by a draw;ng or template. A pipe G. Entreme care should be talen in lightening flange bolts. Do not threaded O.D.of bearing and repl ace in tube and thread coup.
( l sfeeve about two and one. half attempt to pull flanges together. I ling on shaf t. diameters larger ther. the bolt shoul d When joint is assembled properly i 2 l l 1
[ a
~
s G. A steel spider is used to center ~ ^
& the tube in the cofumn pipe.
~
) Wie are placed in recess of
;l .t column flange.
- est 3 l Refumn co
,ab,ove o erations until all is installed.
~ ' - - )
#j H. Check position of shaft coup.
' I l h p' .,
ling. If coupling is in tube, the head shaft (9)is scre-ed into the 9 pf 5 coupling then the tube is screwed j
', \- onto the bearing. lf the coupI;ng is above the tube, screw the tube StuNing Box )
onto the bearing. ( ' j
- l. Place the head on the top column flange, bolt together then A D M raise the head and lower it into en the foundation. Bolt the head in g
I !
J. Dope the tube threads and g 't_ l the flange of the tension plate (4). 1 i ,
l:
. I ;
3 Screw the plate onto the tube
- b. s 2- I f M fairly tight so as to put consider. '
i ~
- able tension on the tube. Align
- gf = ' ,b
\(g[l
' the hofes. insert capscrews and / w' yr _h:. '
M * -
, I ' c #h tighten.
'O f K. N top of the tube nipple (5) k'g g i, should now be about even with 3
'If I
- c. . ,
g! the top of the tension plate: chect ! j l j L ;.
~
, eld N' to be sure that the tube nippfe 1 ------ M i j M
t j l} t does not entend too far above the (' {[I'( 8 a , tension plate and that it will not I M7 --{ , ! . h"i > butt on the shoulder of the tension nut. Install the tension plate Enclosed Line shah-Water Flush j ce o ..' I '
'V 6 1 F packing (6) and thread the tension nut 17) down tight. l 5
,j L. Refer to section 11 for driver ,
3 p j mounting. , [j h7 M. Connect the oilI;nes. Fill the 'I-automatic oiler,if electric pump I y p' IQ
)
j drive is furnished. or oil cup for -
#. gear, with Gargoyle D.T.E. Light O.
1 oil or equal. Do NOT use heavy
;4 l1 oil, over S AE 10. in the bearings 7
t
)A o,I;ne shaft;ng. N leads of the 1[ kl 4
,h l.% % ~ , automatic oiler are connected to .
M any t-o leads of the motor. Discharge Bowl
- j i
N. Check the lubricator feed and FIGURE ll see that the oiler is flo ing freely. ' hC O i i Prior to setting proper drops per minute on the regulator. allow a Enclosed Lineshaf t generous amount of oil to flow freely down oil tube. Subsequently, '' P M .a.,t e Sh It Reage the regulator can be set and, of course, this setting is dependent
- a 3/4 t.1*
on the pump setting and sine of -
'*3/~'*'~"I'*~
M' shaft.The following table shows 2 3/16' ead la'e+'
' recommended regulator setting: 20 FIGURE I Open Lineshaf t 3
J gg.Al (Fig
. ^
woier Fiuin .ad u , r2 SECTION 11 DRIVER e
- i. As,e,nbij Construction iFsg. BLEED OFF
.He Drille ,
" MOUNTING I f A. Assemble flush l.ines 10) to 3 N'{
sc :. ' 5 flow ', suction bowl as shown. irstructions in 2. A through J ~ A ll A Vertical Hellow inaft - ; A- E -.-
- - IAotor or Gear cuespt F. ! j A. Remove the drive coupting c
'n B. Place bushing retainer (11)into from the motor or gear drive and ,
trnston plate. W g
' insert a cloth in the openings to j %4 revent any foreign materials C. Secure flinger (12) onto shaft from fa!!ing into the driver.
e.lts) to the top of the retainer. 9 i - D. Place bonnet (13) on top of rstriner and bolt m place. f(v" 5 g, p ,;g;en the driver on the dis. charge head and bolt down. msning sure the pump is vertically gi Pockless 5tuffing Box E. Refer to section ll for driver ' ' .' 9 "' d - mrunting. C. Carefully lower the drive shaft F. Connect flush lines to stuning through the hollow shaft on the a bon at both connections at A and dnver. Q; D. Couple the shaft with the to the flush line to the suction t s bowl bearing Connect bfeedon "" threaded coupling provided taking I;nzs from the bonnet to the return lines in the basepfate of the 8 c i" i f care to center the coupf' g bet-een the two shafts. ee Fig. N lit ilflanged coupfing is urnisked.) discharge head. G. Turn on supply water to assure Dj gF,' ' Drive shaft must be cantered in h driver bore. If shaft is not cen. adequate flow to bearings. Flush water should be 20 psi above j '
,-i l j tered, check misa!;gnment between I driver and head, or check for msemum pump discharge pressure. ',
I bent head shaft. Correct l miset;gnment. j ' ld I E. For efectric motor units, make 7 p I' efectrical connections according ( [b to tagged leads r> diagram attached to the motor. Check Enclosed Lineshoft . Water Flush motor rotat, ion. Be sure this is done before instS.ing the dri.e coup. ling. CAUTION: 00 NOT RUN IN REVERSE DIRECTION AS A3) SHAFTING MAY UNTHREAD F AND CAUSE SERIOUS DAM AGE
'y l g ,,,,,,,,,,-( 2 )
s TO THE DRIVE AND/OR PUMP. MU The motor must rotate counter. clockwise when looking down from
',pl3(l 'l
-C above. See arrow on pump na ne.
plate,if motor does not rotate
- l. .
t
" counter-clocLwise. change motor l rotation by interchanging any two
/
,C ,
leads. F. Slip on the drive coupling and install the gib head key. This key f f/p,,$y should be a slide fit, permitting adjustment of the pump headshaft (10F.- . ;r ' i 1 A. by means of the adiusting nut. 6 Secure the coupfing. mal;ng cer. tain coupling is properly seated. M G. Use the ad iusting nut to adjust l Bowl Assembly the impeliers. (See instruct;ons for ' impeller adjustment II.C). H. Lock adjusting nut with cap. 'lf Sc'ew Provided. FIGURE ll-A I i 4
. _ _ ~
's Flznged Coupling II.Cl Verticci H:llawsh;ft D. By turning edp. sting nut stil! ,
p.A"l more and lining up holes "E" and g y;g.1113) Driver Adjust impeller with the adjusting "G" imPeII','s 8'e 'aised 2/20, A. Refer to A. O, & C above. turn or .008 .Where holes F, nut at top of driver - and "H"line up adjustment is
. Dissssemble t.ne coupling and & TWdisW hd (de the upper half of the coup
- 3/20 turn or .012" and so on.
ente the drive $1 aft w% hey A. With impellers touching bowl E. Turn adjust,ing nut for ,impet'er 1;ng!
;n p ace and position split anufer faces turn adjusting not C.C.W. clearance of 0.015 for pumps r;n ints anufer groove. Sl;de the until bottom face of not males *Ith WP to 10 feet of column, add contact with motor coupling.
coupling half over t'n e split rings ' ' * * * * "*' '"' in erdar to hold them in place. B. Find hole "A"in adjusting nut et ,otomn,gt pomp p.,(or,n. nee C. Assembfe lower coupling half which is closest to hole "C" in is not satisfactory with spicif;ed on hssd shd,t and raise over motor coupling and line them up. ,1,,,, ng,, go,,, ;m p,j;,,, ,, split rings as m B. C. Put capscrew in hole "B". Turn required, but be sure not to allow adjusting nut C.C.W. until "B" impe!!ers to drag. For enclosed D. Brit flange hafves and proceed and "D" line up. This gives mini. impellers use 3/16" clearance. par E. F. G, H above. mum adjustment 1/20 of one turn or .004" vertical movement. 11 8 Gear Drive Units _ A. Mete cooling connections as Motor or Gear (Fig. ll1121 required. Use tubing of fle 1ble ! A. Disassemble the coupting. Slide hose at the gear dnve.The amount y g, ,, g ,g g, , of wata,r required may best be g , e 6e dr'ver M ~6 % in detsemined by regulating tc. the ;! t;t urd r' sinto
- % place. Fit 6e : deSecwka tsmperature on the discharge of N M and the esofer. g , , g ,,,,
s M.MN down ever the rings. If the cou . B. Fili ear drive to proper level C p' h7.-Q b ~ ' ~ p* ing s the spacer type. assemb e the spacer to the upper heti witn with el recommended by the gear '%g<j the studs provided. manufacturer. C. The flenible shaft flanges 4 Q 3-- B. Sf;de the bottom haff coupf:ng should push fit on the gear drive Y (B) and key onto the head shaft. Screw the adjusting nut (C) as sed engine without the use of
.scess force. Hammering on the FIGURE Ill - 1 far as possible on the head shafts will damage the bearings shaft.
end destroy the adjustment of the 4 , gacrs in the gear drive.The shafts vff o .. to be connected need not line up P ADJUSTING NUT asia!!y. but should be within two degrees parallel. Keep the logs of 0% gowE' 'MPILLEn the flange yotes in the same posi. N ][ 8 RA ' kE R t;on es shipped from the factory. If slip joint is moved. be sure lugs % j W , ere re.al;gned. Use only a pure minerst oil of 140 S.A.E. grade <
*4 4+ F *
? . _ .
when lubricating the universal . joints. D. Check the rotation of the C# .' s > E I power unit and pump in relation to ) that of the drive, as shown by Bj[ .j L 1- - MOTOR COUPLING cerows on the case. Rotate the drive by hand before applying 7 poTATeog power as a precaution against a O bound or locled installation. The FIGURE 111 - 2 pump afways rotates counter. C f" clockwise as viewed from the top ng of the drive shaft. CAUTION: , g N DO NOT RUN IN REVERSE DIRECTION AS SHAFTING MAY
"'"d' h k,! * -
F UNTHREAD AND CAUSE DAM. AGE TO THE GEAR DRIVE AND/OR PUMP.
- @ [, D (h ( .
C leapeller Clearance for Open er Enclosed Impellers [~ FIGURE lY FIGURE 111 - 3 Impeller Adjustment '/HS Driver Refer to (;gure IV. 5 i
a C. Heist driver and set la place : an r ump head. Bolt down securely. D. Rotate drive by hand before l cpplying power as a precaution cgainst a bound installation. Pump f[ 1 clways rotates counter. clockwise cs viewed from top of drive shaft. . my CAUTION: DO NOT RUN IN Jega.p w a yuwIt pg Iw RFVERSE DIRECTION AS SHAFT. lNG MAY UNTHREAD AN CAUSE SERIOUS DAMAGE. OPERATION E. For Electric Driver - Mat, IV.A Prior to 5torting slectrical connections according to 1. gefore the pump is started inith j tagged leads or diagram attached o!!y. male the to!!owing inspection: i ic the motor. Do not connect drive A. Check alignment between coupling unt;l motor rotation is Pump and motor. checked. Motor must rotate counter.clockw?se when looking B. Assure that bearings are down from above. See arrow or. properly lubricated. cump riemeplate. If motor does C. Check all connections to motor not totale counter. clockwise and starting device with wiring change motor rotation by it'ter. diagram. chang;ng and two leads. CAU. Check voltage, phase, and fre. TION: DO NOT RUN IN RE. quency on motor nameplate w,ith VERSE DIRECTION AS SHAFT. ING MAY UNTHREAD AND line circuit. CAUSE SERIOUS DAMAGE- D. Cheel rotation - be sure that F. For gear drive units, see lhe pump operates in the direct;on indicated by the arrow on the section II.B. pump head, as serious damage can resultif the pump is operated e G. For steam turbine drivers - in connecting steam piping to turbine. be sure that adequate with incorrect rotation. E. Check impe!!er adjustment. f(
\
sapansr>n goints are used. other-wise temperature changes may F. Turri roteting element by' hand cau.a misalignment. to assure that it rc, tat . ' .. , G. Check discharge piping and II.D Impeller Clearance for C. IF A MECHANICAL SEAL 15 Pf'85u 98u9" I 8' pdf , Open or Enclosed Impellers SUPPUED, DO NOT SECURE *P"8t'on- I SAME UNTil AFTER THE H. If pump bearings are lubricated ! 11.D1 Vertical Solid Shaft IMPELLER ADJUSTMENT 15 by water Cush, allow water to i Driver COMPLETE. lubricate bearings for two or three minutes before starting pump. A. Refer to Cgure 1111 and 2. With pump instal'ed and the im. SECTION lli IV.B Stort.ing pellers on the bottom turn the PUMP START UP
.d,ustin, plaie (C3 on the th,ead i. Faow the steps below in the to obtain .015" clearance between order indicated to start pump:
the flanges jgap.E) for pumps with lit. A Priming A. Close valve in discharge line. l up to 10' of column. Add an The first stage .impe!!er must always additional .020" for every addi. B. Turn on power to pump dr.iv e r. be fully submerged. tional 10' of column. If pump C. When pump is operating at I, performance is not satisfactory if the pump is run dry, the rotating full speed, open discharge valve with speciCed clearanea. lower parts within the pump may gall and slowly. I irnpellers cs required, but be sure ge;te to the stationary parts as they not to a!!ow impe!!ers to drag. For depend on the liquid being pumped ly.C Stopping Pump . i closed impellers use 3/16" gap. for lubrication. When stopp.ing the pump. clos + the [ discharge valve Crst.The pump. B. Irsett coupf;ng bolts ar.d , 111 5 Check for Free Turning however, should never run or any j pull coupl;ng anges together snugly. Tais raises the impellers Before the pump is started, turn length of time with discharge wafve f
- the amount of the clearance pump over by hand to be sure it is closed due to danger of increased (
between the Canges, free, and does not rub or bind, temperatures. ] i b
5ECTION V nI5 ASSEMBLY 1 7i
. ASSEMBLY Ee$l! t: i Im N*
i gi - . , 7Q l- i:&, 2 y.Al Prcduct Lebe $ A. To disassemble the pump. re. , a 5 move cenopy on motor to allow ' acessi to the dr,ive coupling. h B. Remove the leckscrew from ' edjusting nut to ellow removal of 6
/ M d
~ '
adjusting nut. C. Ramsve adjusting nut. c I D. Ths gib head key should then be tsmoved and the upper head. FIGURE V(a) shaft can be uncoupled from the Product Lubricated esupfing located in discharge 5 tuning tom. bead. end removed by pu!!ing up through driver. E. Remove the driver and set asida isr later inspection. For solid shaft drivers remove # coupling bolts ar.d remove driver. ! 7 u
~r/
- 8. Remove tube tension not in F. To remove the pact.ing bon order to accomplish removal of the sf;de the pack,ing gland (1 on 'the p ,g;nE shaft and remove the pac ing (2) _ _
and lantern ring (5'. Disconnect C. Remove bolts holding tube 4- p r a
' . .a
'y bleed lines anc remove the tension pfate (4) and unscrew : ?
.apscrews holding the assembly tube, tension plate from tube
- 2 -
in the d;scharge head. Remove the l'n5'on n'PP fe (5). r stuRing bon (3), taking caution not D. Remove head mounting bolts to damage the fle Ita!!ic geslet (6), and raise head in order to dis. Removal of the stuRing box 5 connect flange bolts, takin cau. ' 7 can now be accom. tion to adequately brace i e is' busL;7. (c ).d inspection can bepump. E. Remove tube tension nippfe [5] FIGURE VIb)
-- heise discharge head to allow and lower headshaft Oil Lubricated access to the flange and dis. $I" "9 I
F. Continue to remove enclosing ( essemb!: the flange bolts. Secure tube column and lineshaft in se. l column so it won t drop. , Remove pence. unt'l moval of the M*re j discharge head and bearing re. - tainer. Care should be taken not bcwlassemb[i can be 13 12
*CC 'PPfi she .
to damage the shaft during this procedure. le BLEED OFF LINE I H. The shaft coupfing should now be esposed and strap wrenches Y.A3 Water Flush Arrangement (Figure V(c) ). A. Follow V.A1, A through E. 11
\A-E;,'
et q
~
_._4-A s-d shaf t OE b 5 ARE LEFT HAND). B. Disconnect flush lines and bleed . . I on knes from bonnet. j;
- 1. Continue the chove procedure.
one column section at a time, until C. Remove Bonnet (13)
%j l removalof the entire bowl I , - '4 assembly can be accomplished. D. Remove flinger (12) g -f _)
E. Remove bushing retainer (11) I' - -. 5 2 Oil Lube F. Remove tension plate (4) by FIGURE Vic) Fo!!ow A. B. C. D and E above then d;sconnect oilline from tube unthreadinfow pie V.A7. lie.% D. Efrom tube tension Water Flush rip. ! tension nut (7)(Fig. V(b)). and(5).F. Fof Arrangement 7
VB Dis ssembly Pzmp Bewis j
~
3 V.81 Product Lubricetion (Figures Vite) and (c) ) A. Unscrew pump shaft coupfing (3) and remove capscrews from top bowl C
.h.
.-g a ],
l B. Slide the discharge bowl (1) oM i the pump shaft (2) so impeller (4) is esposed. NOTE: To ir sure proper reauembly, flanges should FIGURE Vl(e) 1 be marked in sequence of Product Lubrication disassembly. Bowl Assembly C. Pull shaft out as far as possible, ) then strike the impeller hub using a collect hammer sliding on the j 6 2 3 shaft. This action drives the hub oN the taper lock (5). Usually several blows are needed to free D. When the impe!!.e has been b U { O ~ l freed, insert a screwdriver into the .V slot in the taper lock to spread it. This allows removal oN the shaft. FIGURE Vith) The impeller can now be removed. Oil Lubrication Proceed in this manner until ent ce Bowl Assembly bowl unit is completely dismantled. E. Remove pump shaft from sue. 4 9 8 4 5 7 5 tion bowl (9). Bronze sand collar must not be removed unfess pump shaft is being replaced. lr' F. See section V.D and Figure IX [ for leyed impeffers. (f yg g ! g l V.B2 Oil Lubrication 1 Figures Vl(b) and (c) l Fi m E W c) A. Unscrew pump shaft coupling Bowl Assembly (3) and remove. B. Remove screw bearing (6) from discharge bowl (1). insert the lateral key.into le y on I C. Drive a small wedge into slot of tap,er lock (5) spreading it to pumpshaft and sfide impe!!e down C. Remove cap screws from top over the key. making sure the anular bowl (l) and remove top and dis. aIIo* P lacement over the shaft. Holding the impeller against the groove for the split radial key is , charge bowls from shaft (2). bowl, slide taper lock into hub, esposed above the impeffer hub. removing the wedge after Insert the sp!;t anular key and post. D. Proceed per C, D and E obove. insertion. tion the split ring coffer either with
& VI e li i ha me the impe!!er is emperienced.
A. Slide the p mp sheft into bear. E. Sl;de first intermediate bowl (7) mg in suctic o I until the send V.E Bowl Wear Rings over impellers and bolt bowls together w,ith capscrews. coffar (8)(rests on the hub tact nearest safes oKice for pos'- of thebowl(9). if new shaft is used con. F. Repeat the above procedure Us.ing a d.iamond po.int chisel. cut tioning sand collar.) until all stages are enembled. two **V,' shaped grooves appros . matel 180* apart. Entreme care B. liolding N shaft in place with VD Keyed impellers shoutJ be iaien so e, noii. damage a washer and capscrew placed in the wear ring seat. Using the chise!. , When furnished, the split ring ce!!ar suction slide the bearing housing, ft untilit first impelier (4) over sha may be of either the bolted or inock the ends of one half the ring in and pry ring out. ( seats on the bowl. screwed type.(Figure IX) 8 k l
l . I L i e i I 5fl d l I
**@.A , /
,,.i.a .
g *.
-s>
TAsia 'v /' s ,
- soca f FIGURE IX(o)
Meyed Impellers l / Bolted Type l s
! +-
s.: os M e" i 3 sus ~s s t FIGURE Vil [ k
~
Product Lubrication s. REPAIR
- d PARTS E
-F)l Tr ORDERING kjM INFORMATION I FIGURE IX(b) Always give serial number of the
'n - i Keyed impellers g.mP 85 SlamPed is is essential as similaron pumthe s nameplate. e Screwd hpe often difter accord ng to con it, ions gpg ,
of service. Also, when ordering, give
?ia ' n r the name and number of the parts as
. I V.E2 lastallotion marked on the Sect;onal Drawing.
Place the chamfered face of the bowl ring towards the ring seat and press it is recommended that the spare t
'3* ~ y(
e s:.. 2, into seat making sure it is flush with parts be purchased in order to insure a ainst costly delays.The service in i i edge of wear ring seat. h ' '* "! -3 Re ommended clearance are as *,.gf'de e m ne the_ Pump g p,,s used y,c;.j fi..
~ ~ '"'- which may be required. Any further Med.1 Cf.... ace information is avalfable upon request 7,,
- 3. a LC - 6. 5 HC .015 from our area representative or the g so . .j .01: Safes epartment Goufds Pumps, ::
.: % 6 7 LC - 12 13 uc .016 i
*'"' t2 Ia LC - 20 20 NC .020 .o25 Vertical Pump Division, Inc., City of
%~ - Industry, Carfornia.
euw+ i
"" - Y.F Inpeller Wear Rings l Return.ing Parts n no ,n ( \ V.Fl Removal A!! materials returned to factory sSS~~s _,M m IAg The recommended method for re- must have a Return Materia! **?o",",
{r l 5^y moval of impelier rings is to set up O. der [R.M.O.) tag attached. r the impeller in a fathe and machine Consult the nearest factory epre. sucnow the ring off, taling care not to sentative or Sales Office or ,-, j .s L( 'eusdU machine or damage the ring seat or ShI PPi ng instructions and an
,' impefier hub. R.M.O. ta g.
V.F2 Installation Art;cles being returned should be adequately pacled to prevent FIGURE Vill Fo!!ow procedure noted under bowl damage in handl;ng. Oil Lubrication ring installation. 9
51 n A
'C SECTION VI TROUBLE CHECK LIST VI.A No Liquid Delivered VI.C Not Enough Pressure 5. Shaft ber.t due to therma! dis.
tortion, damage while overkauf, or
- 1. Lack of prime or break suction. 1. Speed too low. 'mP'oPer assembly of rotating }e Fill pump to a point above first See item 2.
element. Che borvYgor bind 2. Air or gasn in liquid (test in Check deDection by turning be. laboratory, reducing pressure on tween lathe centers. Average Plugged suct on- liquid to pressure ,n i suction line- total tunout. should not neeed
- 2. Speed too low. Watch for bubbfe formation.) .002" on all pumps. \
Check whether motor is directly May be possible to over rate
- 6. Mechan.ical failure of critica! ,.
across.the.line and receiving full Pump to point where it will Pump parts. s voltage. Provide adequate pressure de. spite condition. Better to pro. Check bear,ings and impellers for
- 3. Discharge head too high. ,;de gas separation chamber on damage. Any irregularity in ,
suction line near pump, and these parts will cause a drag on Check pipe friction losses. Larger periodically eshaust accumu. the shaft. piping may correct condition. Are valves wide open7 lated gas. 7. Speed may be too high. (Brake
- 4. Suetion lift too high. 3. Obstruction in liquid passages. horsePo"'r of ump P varies as the cube of the speed; therefore. any If no obstruction at infet, check for Dismantle pump and inspect pass.
agn of impeller and bowl. !"* !" speed means considerabfe pipe friction losses. However, 'nCf *858 'n Power demand). static lift may be too great. Remove obstruction. Check voltage ca motor, column I Measure with whi mercurfe pum 4. Too small .impe!!er diameter. or vacuum auge I MI'*I,'gnment. l operates. Ifstatic lift is too igh. Check with nea est salu office to _ R'*I;9" Pump *nd dr,uer. liquid to be pumped must be see if a larger impeffer can be used. Otherwise, cui pipe losses, 9. Electrical defects. (f
' raised or pump lowered.
or increase speed, or both as The voltage and frequene of the i
- 5. Impelfer comp,etely plugged. needed. Be careful that drive' efectric current may be lower i Dismanife pump and clean is not overloaded. than that for which the motor impeller. **s designed, or there may be
- 5. Entrained air.
defects in the motor.The meter : NPSH. See VI.B6. VI.B Not Enough Liquid may not be ventilated properly j Delivered due to a poor location. r VI.D Pump Works for a While
- 1. Speed too low. and Quits 10. Mechanical defects in turbine. l See item 2 above. engine, or other i pe. If troub!e g
- 1. Head lower than rating, pumping cann i be locate . callin factory too much liquid, service engineer.
- 2. Discher9e head too hi9h.
See .i tem 3. Turn down . impeller outside dia. meter i i re a v sed by j
- 3. Suction lift too high. nearnt safu office. VI.E Pump Tokes Too Much ;
l 1 See item 4. I* * * ' I l 2. Excessive required horsepower. I 4 ImPe!er artially pfugged. 1. Defective impeffer. I Pump being used with a higher viscosity or speciCc gravity inspect, replace if damaged or liquid then designed for. vane sections badly eroded.
- 5. Incorrect rotation.
Use larger driver. Consult sales 2. High specine gravity.
- 6. Cavitation. office for recommerded 3. Head lower than reting - pumps l le sufficient NPSH available. De. ,; e. Test liquid for viscosity too much I, quid.
j pending on installation, increase and specific gravity. See item 1, section VI.D. ; l the positive suction head on th6 ! pump by lowering the pump. 3. Wrong direction of rotation. 4. High viscosity, partial freezing of ! raising liquid level, increasing pumped liquid. I l 4. Cas;ng distorted by ncessive ' m sucti n or discharge Check. Both can cause high drag !
,'i th
['"',{*g " '"p*,I',g",, ' *I"'.I' P'P'ng on the ,mpetier. liquid. ; Enam ne purnp for friction between 5. Defecti e bearing. \' Entra,.ned a.ir.
- impetters and bowls: replace Replace bearing. Check shaft or i damaged parts. shaft sleeve for scoring.
Vortening. 10 l 1 I
SECTION Vil PARTS UST
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2 .f Construction lM _l . _ C .. . _
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$ 50. Ptt Pweep PL4 etaaet I Flffte ] ALL letal i * '[ E eo0 R2 t
I
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i g 404 I tai assust.ag out Sat.la t e
$27 ," ,
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erew saan secesshaft sag.10.a s 486 15 w p = -- i
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_ =- " -- Vertical Pump Division Offices and Plant. City of Industry. Californie-l SPECIAll5T5 IN PUMP 5 Goufds Pumps built its first pumps 121 years ago and has grown to the largest independent manufacturer of pumps exclusively in the world.
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~
i ) l ALLIS-CHALM ERS l l i INSTRUCTIONS LARGE FRAME VERTICAL
~
I INDUCTION MOTORS I 51x4232
E l TABLE OF CONTENTS
\.
INTRODUCTION MAINTENANCE Wa r r an ty . . . . . . . . . . . . . . . . . . . . . . . .3 Preventive Maintenance . . . Receiving . . . . . . . .
. .... .... .. . . 13
....... . . . .. .3 Inspection . ...... ... ..... .13 Handhng ...................... . ....3 loadmg. ................... .. .. .13 Temporary storage . . . . . . ..... .....3 Ternperature .
Desenption . . . . . . . . . .
.... .. ....... .. . . 13
..... . .. .. .4 Corrective Maintenance . . . . . .... ...... .. 14 Type Designation . . . . . . ..... . . . .4 Vibration .... ...... .. . .14 Ch an m g . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Insulation Resistance . . . . . . . .... .. . . 14 INSTALLATION Drpng insulation .. .. .. . . .6 Location . . .......... ..... Bearings . . . . . ...... ....... .16
. .. .. .5 Foun d a tion . . . . . . . . . . . Lubrication ... ... . ..... .16
. ....... .... .5 .
Motor Mounting . Replacement ..... .. ..... .... ... . 17
..... ........ ....5 Duplex Bearings External Wiring . . . ...... . ..6 ....... ... .. .. ... 17 Vibration End Play . . . . . . . . ...... .. .IS (System Reed Frequency) .
Kingsbury Bearings . . . . . . . . . . . . . . . ...IS
... .. ... . . .6 .
Abgnment ...... Oil Temperature .................... .18
... . ... . .. .7 Shaft Or Flange. Face Shimming . . ..... . ... ..8 Grouting .. .. . . .... ... .
..8 Runout ....... . ...... .. . ....... 20 SPARE PARTS p OPERATION Parts identification . . . . . . . . . . . . . . . . . . . . . . 21 Y
' e sts .sefore Operation ..9 Type GV. Solid Shaft ............. ...
anstial Start
. 22 l
.. . ... . . . ... . .9 Type HSO . Hollow Shaft . . . . . . .?; I Normal Operation ... . .. . 10 Type HSHG . Ho!!ow Shaft . . . . . . . i
. . .24 Operating Temperature . . . ........ .. . 10 Type HSZ . Hollow Shaft ..... . .25 Voltage Regulation . . .10 Type AZV. Solid Shaft . ...... . l
.26 TROUBLE......
.... ... .. ... 11 HOLLOW SHAFT NOMENCLATURE . . .27 HOT E: The illustrations, descrir . . ani instructions in this book include the standarf Jw i o' the equipment and any common deviati - . A p .ible. This book does not roter
, all design dera ; . .; r.- ns nor does it proside for all f contingencies wi.:.n t.a, i, ocountered. When mformation '
' cannot be founo herein comsci the ne.irest Allss Chalmers !
office. For a listing of these offices and Certified Service I Centers, see directory 25x8109. 6 t' t
H NDUNG in, manual is fumished to provide some of the practical Any m tot lifting dev. ic e provided,either eye bolts or lugs. u to install, operate, and maintain your equipment. Keep must be used for lifting the motoi only, and not additional Unan Jy fertature reference. Additionatinformation may be I iened from the nearest Allis.Chaltners representative, or 89uipment.
.unJard, of the National Electrical Manufacturers Never attempt to lift an assembly by attachments or **a rion A) sub.sssembly lifting devices.
pARRANTY Scc )our sales contract for coverag s. Check weight before hiting; weight is usually indicated on freight bill. Lift only with lifrine devices. Apply tension vertically and gradually;do RECEIVING not jerk cables, attempt to move motor suddenly, or scrape sides of fabricated assemblies with , common dangers during unpacking are mechanical damage cables. and moisture condensation. The umt should be unpacked with these checks in mind: I Unload and handle the unit carefully. Motor Weights lin Pounds) Check for shortage and damage immediately. (A The following weight variations, Table 11, are based on prompt report, with notations on the freight bill motor frame sizes and types of enclosure. should expedite adjustments by ti.e carrier.) TASLE t.1 NoToR WEGMTs WElGMT tLSs) TYPEoF EMcLosVRE FilAME CAUTION siza {D, Hj',L,0* .ig,,,,x, GV H5HG 1,300 /3,575 Use hitmg lugs, NOT attachments. Do not lift by 500 H50 3,000 /5,500 ! flanges. Check drawings for construction. 580 GV 30 GV H50 4,500/7,000 AIV H5Z 3,200 /4,100 23
& & 4,500/6,500 26 AZZV H5ZZ 6,000 /10,500 hiotors with grease. lubricated bearings are shipped with the 30 bearmgs pre. lubricated and ready for operation.
Motors with oillubricated bearings (sleeve or anti. friction) are shipped without oil in the bearing reservoir. Bearings and journal arraces are protected during shipment by a film of TEMPORARY STORAGE rust.ir.hibiting oil. Consider a unit in storage when-imrradistely upon seceiving a motor with oil lubricated beanngs: 1. It has been dehsered to the job site; and is awaiting installation.
- 1. Check for rnoisture accumulation. Remove any traces of exid: tion before putting the motor in service. 2. It has been installed, but operation is dela>cd pending completion of plant construction.
- 2. Fall bearing reservoirs to normal level with a non. foaming. non. detergent turbine oil. (see There are long (.10 day) periods between operating 3.
Wintenance). cycles.
- 3. Rutate the shaft several turns, by hand, to distribute 4. The plant or department is shut down.
the oil over bearing parts. 3
== ... ... . , M M
. .2 l 1
If the equipment is n:t to be installed et cperatid soon after DESCRIPTION l raival provide a clean, dry wellventilated place, free from i vibration and rapid or wide variations in temperature. "P" flanged, vertical type motors above NEMA frag 445TP are the subjects of this manual. The instrucu%
- 1. Energize space heaters to prevent condensation on include: #
intemal parts. , I. Normal thrust motors with grease lubricateg
- 2. Fill oil reservoirs to proper level. deep groove ball bearings capable of accepting sn,,g valuesof up and down thrust.
- 3. Rotate the shaft several revolutions each month to; coat the bearings with lubricant, retard oxidation or 2. Medium thrust type motors in which angular contacs !
c:rrosion, and prevent possible false brinelling. thrust bearings are substituted for the deep groosed bearings. Angular contact bearings are capable of taking higher down thrust. cal.iTION
- 3. High thrust, oil lubricated bearings, hollow and sohd M High speed (3600 RPM) vertical motors with oil shaft motors.
lubricated bearings are lubricated by an oil mist.
- Each month, during storage periods, these motor bearings must be coated with oil- by running the Values of thrust, normal and high, are published in the ,
unit several minutes or by disassembly and coating Albs Chalmers price book. Nedium thrust values are usual;y bearings with oil by hand. one half of the high thrust values. Many variations exist within these classifications. Cheek motor name plate for your particular type of construction. ! Storage requnemerits vary dependmg on the length of storage and the chmate environment. For storage periods longer than Motor Type Designations - months or special conditions consult factory instructions Motor type designation consists of a basic letter, or letters. indicating the general construction, to which are added other letter (s) denoting specific mechanical and electrical modifications. i j g DRtP COVER . AIR INTAKE
$ - GZZV Basic type. TEFC - Explosion. proof, vertical motor.
OIL FILL PIPE , .msmemme as 1 HSHG Hollow shaft, high thrust, open motor.
- OIL LEVEL /2 hus cm = ,
SIGHT GAUGE
, 3- HSZ Ho!!ow shaft, high thrust, totally-enclosed,
_ , fan-cooled (TEFC). OIL DitAIN PIPE q j .-~. RGVS NEMA terate general purpose, open type, LIFTING LUGS - y . vertical motor, with Super Scal construcuon. MOTDR RATING PLATE ' r3
.f - -
Some of the mechanical and electraeal moditkations are
...h G.- M listed below.
TING 8, h hR y AZ Tube type, totally. enclosed fan cooled,(TEFC) INSTRUCTIONS , cya, ZZ (TEFC), esp!osion proof. AIR EXHAUST s Spr&d* construction with Sk&Hcs or CONDUIT BOX MiClad e (V.P.I.)in>ulation. V Solid stuft settical motors of normal. medium and AIR INTA:tE GREASE PIPE high thrust type with drip tovers. ! l ! arosa G Open Motor
%.es i 1 - Hso. 30 fram. . it wtw top be.,ing e,esie wta HSO Iloilow stuft, high thrust, sertical motor .
bottsm '. ang 4
1 Any excessive vibration of either method will cause loss of l alignment, premature bearing wear and eventual break down. I CAUTION j information contained in this book is l The I miended to assist asperating personnel by providing NOTE: If motor is driving a pump and the back pressure is
)
enformation on the general characteristics of the maintained after shut.down, protect the motor : with quick acting check valves. l purchased equipment. /r does trot reheve the user of the responsibility of usingaccepted engineermg l practices in the installation, operation and l nuintenance of thisequipment. l FLANGE MOUNTING (Solid. Shaft Motors) , I To mount round frame motor to driven unit, proceed as LOCATION follows: I slect a location for the unit that will: HOT E: Round frams motors can be rotated within flange mounting bolt spacing to gain a satisfactory Be clean, dry, well ventilated, properly drained, and ;
- i. position for grease fittings. conduit attachments.
provide accessibility for inspection, lubrication, and and mate run-out differences to avoid shinwmg , maintenance (see dimensions). Out. door installations flange fits. Conduit box can be turned to four may require protection from the elements. equally spaced positions for access to conduit , system; arrange the system so that water will not
- Provide adequate space for motor removal without accumulate and drain into motor connection box. ,
shiftmg the driven unit,
- 1. Use a hoist; rig a sling around the leftmg lug t Permit the motor to safely dehver adequate power.
Temperature rise of a standard motor is based on 2. Position motor (per note abose) and move toward operation at an altitude not higher than 3,300 feet driven unit - engaging cleaned flange surfaces. above sea level.
- 3. Insert flange mounting bolts and snug.
FOUNDATlON
- 4. Secure attachmentsbetween motor shaft and load (i.e.
A foundation is required to support the imit to which the set screws tightened against shaft key ). ' Ibnyd motor attaches. Concrete (reinforced as necessary er requned) makes the best foundatic>n, particularly for large 5. Tum shaft by hand; check for free rotation; bmdmg: umis in sufficient mass, concrete provides rigid support that scraping; sticking. mmimites deflection and vibration. Location may be on: soil, structural steel, or building floors, provided the total weight Tighten all flange bolts. (Avoid warping or springing 6. tmotor, driven unit, and foundation) - does not exceed the flange).
'the allowable bearingload of the support. Allowable bearing loads of structural steel and floors can be obtained from 7. Turn shaft again to check for free rotation.
Ingmeeting Handbooks; Building codes cf local communities pse the recommended bearingloads allowable for different HOLLOW SHAFT - (Type HS Motorst 4 Pes d 501 The motor should be set on its base first, and the dnven shaft NOTE: If normal vibration or noise will be objectionable inserted through the hollow shaft. There are times, honeser. (as in office buildmgs),it may be advisable to use when these motors are hfied and lowered over the drnen shaft. In either case, do not cause damage to the shaft IT ' vibration dampeners between the motor or driven bending or scraping the threads. (Refer to hollow shaft l unit, and the foundation. 8 nomenclature pg. 27, for term identification). MOTOR MOUNTING , Proceed as follows: Mount the machine securely and align accurately with the dmen equipment. 1. Remove coup 1mg coser and raise motor with shng and h0i' - I. Direct mounted to driven equipment; the two units must be firmly secured and the driven equipment 2. Slowly lower motor; carefully enpge stud (:f used)and J placed on an adequate foundation. rabbet. (Position motor to allow access for power connection and lubrication.) Install flange nuts (bolts. 1 2. Fhior plate mounted; equipment must he very rigid if used) and snug. I and free from vibration. 5 1 l
J
. '3. Insert pump drive shaft ints hollow m:t:r shaft; ^
strange coupling and drive 2 shaft.in line with Gib Kiy at . Slot. CAUTION 1-
- 4. Insert Gib Key, connect driven shaft to coupling and adjust pump nut for proper impeller clearance.
(Remove locking Bar if provided.) g y g ,g ; g
- 5. Tum shaft by hand to check for free rotation and shaft '
alignment (pg. 7). There must be no bmdmg, scraping, - I or sticking. Look for rotation plates usually mounted on fan housingor , top housing of the motor. - l
- 6. If used. check the operation of the non. reverse device; ~
also check action o: self release coupling, if that type Enclosed Motors. Two. and four pole motor external fans are of couptmg is used. directional type and should be replaced.The mternal fans of tw& pole motors should be interchanged, end for end, The 1 NOTE: A self release coupling is shipped with three bolts internal fans on fourpoles are non. directional and need not be disturbed. holding it in place. These bolts must be removed to allow coupling to operate. Open Motors. Some internal fans of two pole motors, have directional fans Check for rotation plates.
- 7. After alignment (pg. 7), uniformly and securely tighten '
all motor flange nuts (bolts). h w k mm m Wm W e H w fans are changed.
- 8. Turn shaft by hand again; check for free rotation.
VIBRATION
- 9. Replace coupling cover.
After flange mounting bolts have been tightened, check end play (pg.18). Run the motor at minimum load and check CAUTION vibration. Vertical shaft motors with angular contact The standard vibration limits (NEM A.MGl.12.05) for an bearings, arranged either singular or in tandem. ONMOUNTED motor are: 1 [ must not be subjected to continuous upthrust. -
$PE E D (RPM) MAXtMUM AMPLITUDE EXTERNAL WIRING 3500 end ebe . ,tT ' - '-
1700 - 34 99 inc t. .0015 inc hei Starting and over. load control devices must be matched to Less ehen 1700 .002 inc hes motor rating For safety or comenience they may need to be installed some distance from the motor. Follow the control . manufacturer's instructions to make proper installations and If vibration is excessive, loosen flange mountmg bolts and connections. shift withm mounting flange clearance. If this shiftmg does not reduce vibration to acceptable hmit, and motor is Obsene the following: e upled to load, check stuft abgnment and system reed frequency.
- 1. Connect electrical power supply to conform with National Electrical Code and any local regulations. SYSTEM FREQUENCY (Resorunce) bne voltage and wire capacity rnust match motor To achieve reasonable vibration levels when a motor, pump.
rating stamped on the name plate. and support are operating together, the responsibihty is with the system designer. CAUTION Calculation of the probable vibration characteristics of a system before construction begins can often reduce trouble Check oil resenoir for proper oil grade and level by design, before it becomes a costly reabi). The effect of before starting or storing machine. most pump heads because of the access opening for couphng. bearing and pump adjustments. will lower the
- 2. With the driven equipment desconnected, (disconneet system reed frequency.
couphng and remove Gib Key on 115 motors) momentarily energise the motor and check rotation. Generally, the reed ficquency of the motor alone mounted on an infmite mass is at least 25% above, or 157< or more ,
- 3. Reverse rotation as follows: Three phase motors, below the motor operating speed. If the sy stem reed ,
change any two of the three power leads. Two ph.ne frequency is at or near operating speed, a decision must be motors, inter. change stator power leads of either phase: made to raise or lower the system reed frequene) by altering he careful not to inter change leads between phases the rigidity of the motor. support structure. O
l AllGNMENT PROCEDURE (Hillow Shaf t) 40 NMENT PROCEDURE (Solid Shaft)
- Hollow shaft motors require accurate abgnment with respect
,9*r..nowing checking proczdure applies to a unit consisting to the motor shaft and the pump shaft.The pump shaft acts
,,,i,,r.
coupling, and a driven component. Although
;,, Ate to most types of couplings,it is primarily intended as a pendulum supported by the top couphng and motor it e rabbet fit type. For other types, where the procedures bearing. .:.7,. seier to the coupling manufacturer's Installation and Align the unit as follows:
bienan e Instructions.
,,g in one plane at a time and test for parallel or angular 1. Clamp dial indicator to pump shaft, abgn with base bolt plane and set dialindicator to zero(Fig. 2 2).
{ gyn,eni with a dialindicator mounted as shown in Figure pniceed as follows:
'.cl 5 indieator dial to zero, at starting point. TOP BEARING i i
- Shmly turn BOTH coupling halves a comptete turn. 7 k
- Observe dial reading at 90
- increments from starting fg 1 pom t.
. Ac;eptable parallel alignment occurs when the total f f/ inaeator readings do not exceed 0.004 inch- GUIDE % Acceptable angular alignment occurs when the total BEARING ,
/ k
/
i indicator readmss do not exceed 0.004 in./ft. radius to o y/ #g dial indicalor' /////// / h / s //s i / , 4 ull excess misalignment may be corrected by inserting I
,5 between flange faces. Such shims may also compensate
-% HOLLOW
< flanges being out of plane. (Fig. 2 3) b o]
$ HAFT DIAL INDICATOR PROJECTION
[ - ~ RADIUS TO m C CLAMP d WDICATOR ANGULAR ALIGNMENT
$ HART E
e am: \ QF__-__,_,,'1;[. i y///jw /A 1l[ Figure 2 Hollow shaf t elignment.
& ' 2. Remove top cover and rotate both motor and pump ,
shafts.
- 3. Read dial indicator at 90* increments from starting point.
C% ROTATE $ HAFTS SY HAND SEVERAL TIMES TO ALLOW COUPLINGS TO SEPARATE 4. Acceptable allignment occurs when indicator reading DI AL INDICATOR do not exceed 0.0005 inches. TO APPROXtMATELY .020 m g TO .050 INCH
- 5. Shim flange faces if necessary (Fig 2 3)
~
% hen alignment and vibration of motor are within hnuts.
engage drive. Run unit at minimum load and check for 41 ., vibration - continue to increase load and checking vibration f]y,]' _ until fullload is obtained.
'n 7 " PARALLEL ALIGNMENT (NOT REQUIRED IF C M ON RABBET FIT REMAINS IN CONT ACTI Do not operate unit with excessise vibration If N shaft abgnment is acceptable, and vibration ; exceeds the limit, imestipte for other causes. Su f ,,,
Trouble Chart. we 21 - Test eti.gnment ..th d..i ina.caio, tiot.d coupi.as)
.- 7 j
m.. . y, F SHIMMING TECHNIQUE me A recommended appheations mix is as follows: cf grout that is satisfactory fy"'" To avoid the possibihty of twisting the flange when shimming between the flanges, minor shims should be one half the thickness of the major shim. Shims should not N .,' % penetrate deeper than the bolt hole circle and not be wider Dry Mix. One sack Portland Cement. Two pan, than twice the penetration distance. (Fig. 2 3) well graded, cican, dry sand. One pound bag grout additive. + er asAson smu Is AsINCH F 28--j soLTHoLE s .' CIRCLE
^ .:
asusi m.n2s MINoA smM This additive is one way to counteract the plastic shg g MusT m.025 and se!!Iement of a Cement sand mix. To make grout additive, add 2 grarns of unpetum
- ruw, p, .
~9 aluminum powder (Merck Co. No. 0770, or equi,w,,
available at local pharmacists) to I lb. of clean dry fhnt nn ' M (50 mesh screen passing 257c preferred). Mtx thoroughly me
$0*
snart - aralin a plastic bag Keep additive dry until ready for uw. - no smu - HOTE: The effect of the aluminum powder is lost if the 2* mix is allowed to stand, uneast, for 45 rmnutei after addmg water to the dry mix. Fipro 2 Shimm*ng . flange fase. GROUTING 3. Pour the grout through the openingsin the base.%har pouring, tamp liberally to fill all cavities and preses Grout compensates for unevenness in the foundation and air pockets. The grout thickness under the base rius - base. distributes the weight of the unit uniformly over the be a minimum of I inch. To prevent the base from foundation, and prevents the unit from shifting after shifting. fill under the. base plate at least 4 inches a . mounting and alignment. The unit must be expertly grouted from all four edges. Prever t grout from interfenne . by use of non shr. inking grout. The mix required varies with with motor or driven unit mounting bolts, to atow the type of unit to be grouted, location and amount of grout. shifting of belts as necessary. The instructions included with t'ae non shrinking grout 6 packaFe will Provide the required information for the proper NOTE: If pouring and tamping the grout will trap air in - rnix for individual applications. some places, temporarily place small diameter i tubes (thick walled rubber hose) to provide Grout the unit as follows: venting. Remove the tubes after grout has faim a the cavity, and pour the remainder.
- 1. Build a form of plywood or thin planking around the foundation to contain the grout. Support the planking 4. After the grout has thoroughly hardened relighten to prevent deformation. foundation bolts and check alignment.
- 2. Soak the top of the concrete pad thoroughly with APProximately fourteen days after the grout has bren water before grouting. Remove all surface water before Poured or when the grout has thoroughly dried. apply an o:1 pouring. base paint to the exposed edges of the grout to prevent air and moisture from contacting the grout.
nur ,.5, g n CRouf M LN % N NNNN x w @G TvBe To Bt AT LtAsT 4" LC. AND Y ~ a Tiuss notT eiA. oR % uin.
= WNb l cLtARA=ct To rnoviot soLT
?. s::Wd MMU- "0TE' i 5}j 'E cLEAmAmet % h.;' ttvtuwe smws snouto I
,a. et stoTito To srAm soLTs
, .. , o%
g 4. 4 g, 1
- p. 7,: . L , ttvtu~c sm.s ,
f ? Y. s ro
. To s- :. H.;g'4 ,;
**1) ..
g' g...i *4<?w, ,cm
'* !.y*), ' gunoAvion To l
,[%,.
'r'"4 s 't X;
' ', rf [,. ,ICohCRtTt
. W ., w T >,j.. W L
- r. , . . m !
,,,,, ..c......
FoumDATioN bolts MAY 8t A sfuo WITH W ASHE R r Bo1 tom Mui sTAmto AGAINsf TvRNING. I I M936 I Fepre 2 4 - Typical t>sse mounting. I
p f5TS BEFORE OPERATION As an example, assume the cold resistance is 0.50 ohms at l i 25C, and the hot resistance (taken immediately after motor ! ( INSULATION RESl$TANCE is de. energized, and has stopped rotating) is 0.61 ohms. I Ih'D f pegL insulation resistance prior to connecti1g motor to iI l per supply. A hand cranked megger, not over 500 volts 0 N J s. h usually used (see Maintenance). T = 61 (234.5 + 25)- 234.5 l t 0.50 - T = 82C DIELECTRIC TESTS The temperatures measured by imbedded detectors or by the ) All niotors receive a factory dielectric test in accordance with change in resistance are generally higher than thermometer ' measurements and are closer to the true hottest spot AS t and lEEE standards. temperature in the machine. Fct this reason, the Standards Permit higher observable temperatures when measurements q CAUTION are taken in this manner. Additional dielectric testing can be detrimental to ' the insulation system. MOTOR OPERATION li a dielectric test is made on an old or repaired winding, to _
- _ " ~ ~ _
f culuste service reliabihty, the test voltage apphed may vary from the rated terminal voltage to some hither value. The intory should be consulted when estabt",hing the test Do not operate equipment in escess of the values (f sehege and procedure for testing old or re; ured equipment. Even i on nameplate or contrary to the instructions contained in this manual. AINDING RESISTANCE (Temperature) The equipment (or a prototype) has been shop
- tested and found satisfactory for the conditions
- The che.nge in resistance of a winding provides an accurate for which it was sold, but operating in excess of these conditions can cause stresses beyond design ',
measure of the average temperature of a winding. and is generally used to determine the temperature of the stator limitations. ' undmss. The measurements must be made carefully with instruments known to be accurate, and preferably with the Failure to heed this warning may result in ume instruments for both hot and cold measurements. equipment damage and possible personalinjury. NOTE: Instruments that operate on the principle of the unbalanced Wheatstone Bridge or the Kelvin , INITIAL START Bridge are preferred. (See ** Temperature Measuring IEEE Pubhcation No.119; formerly f, , Devices" After installation is completed, but before motor is put in y AIEE Pub. 551). regular service, make an initial start as follows: The cold resistance, or the resistance at normal room i temperature, must be measured after the machine has been Check connections of motor, starting, and control desice; idle for some time usually before starting, or cold resistance connections must agree with winns diagrams. ? salue may be obtained from the factory. The cold ( temperature of the coils should be measured, because coil Check voltage, phase, and frequency of Ime circuit power . temperature may not be the same as the surrounding air. supply must agree with motor nameplate. , The average temperature of the windmgis obtained by taking if motor has been in storage, either before or after resistance measurements, at the motor load terminals and installat;on, refer to storage instructions to prepare for . udng the following equation: service. l R Check motor senice record and tags secompanying motor to
' (234.5 + ) - 234.5 T= -
be certain bearings have been properly lebncated. (When shipped from the fatory ball bearings have been grease where T = hot temperature in degrees C lubricated to give 6 months utisfactory senice.) R = hot resistance r = cold resistance at temperature t oil lubricated bearirgs, are shipped without oil. resenoirs t = cold temperature of winding in degrees C must be filled.(see Maintenance) 9 l
b If possible, remove cxt:rnal load (disconnect drive) and turn Voltage Regulation 1 i shaft by hand to insure free r:tation. This may have been
. done during installation procedure;if so, and conditions have not changed since, this check may not be necessary. Motors will operate successfully under the fog conditions of voltage and frequency variation; but Start motor at minimum load long enough to check rotation necessarily operation underinrated accordance conditions: with the standards estabbsh,[*
and to be certain that no unusual condition exists. Listen and > feel for excessive noise, vibration, clicking, or pounding. If 1. present, de-energize motor immediately. Carefully observe If the variation in voltage does not exceed 10. g or below normal,with all phases balanced. , for unusual conditions as motor coasts to a stop. Investigate g the cause and correct before putting motor in service. 2. l If the variation in frequency does not exceed 5?e abei, or below normal. ( 3. If the sum of the voltage and frequency variatinnia,, not exceed 109 above or below normal (provided 3, CAUTION frequency vanation does not exceed 5%). Repeated trial starts can overheat the motor. The curves teto= show the approsimete effects of vanitio . Starting currents are several times r.aning current; F and frequency on motor charscreristics. These values thosts heating varies as the SQUARE of the ci.trent. in no way be considered as guarantees. DATA SHOh5 GENERAL Allow time between starts so that windings cool. EFFECTS:IT WILL VARY FOR A SPECIFIC MOTOR. *
~
gen k! I ' I 3 . .. \l ! !
=
. *.e - l 'i '
/1 When checks are satisfactory, operate motor at minimum ,. .
/l L.-
load and look for any unusual condition. Increase load slowly to maximum, checking unit for satisfactory operation. g J*<$d '\ ) fy g" n... ,q,,Ai ,3 )g - e
~sts;']' gKy4 NORMAL OPERATION e -
Start the motor in accordance with standardinstructions for g i ',,I1f/f* $ \I 1 the starting equipment used. Sometimes the load should be vd to the minimum, particularly for reduced voltage
. and/or high inertia connected loads.
r '] , f g j j , 7 j jl l'
*Eastm? wo.'act sas s a ? .c =
Fepare 31 - Effect when vottogs varies Operating Temperatures
~8, I l l All Allis.Chalmers electrical machines will operate in ,,"* >g i
accordance with the rating and temperature rise stamped on l'* -~~ , s, j the nzmeplate unless the machine has been damaged or the ventil;ction impaired. Temperature rise is best measured by d* -Sg [. . . t} '
/y #
resistance. Measure the fu!! load operating temperature by g,, _
' f;' I the resistance method discussed previously.
1 I, **Nw- ***'***
! (
i -o,.e .c , , . . . .e .. . 4 The temperature rise at the rated load is determined mainly I" N ~ ' by the design of the machine. However, any accumulation of foreign material in the vent ducts and on the coils will f" ' g- * "
*'g.# ~
~ ~ -
)
I decrease the air flow through the ma: hine and the rate of r-* - P t heat transfer from the machine to the ventilating air. Both of .
-_ ! .O _
these effects will increase the temperature rise above the l normal value. The ratified air at shitudes greater than 3300 feet has somewhat the same effect, and excessive ' * ;,* J,', ,%,a *, ,*,', , *,',,c ,* * * * ' ' temperature rises at normal load are possible unless this Figure 3 2 - Etreet when frequency ver.es frctor has been considered during the design of the machine. i TROUBLE SHOOTING Dverload is the usual cause of excessive tempersture rise. ' Opeistmg currents should not continuously exceed the full i l load salues unless the rating of the machine provides for such Between regular maintenance inspections, be alert for signs i l operation. Vo!! age and frequency other than normal, also of motor trouble. Ocmmon 53mptoms are hsted in the will affect the temperature nse. following table. Correct an) trouble immediately and AVOID COSTLY RIIPAIR ANT 4 SilUT DOWK 10
m . I
- i TROUBLE CHART i i
e ' POSSIBLE CAUSES CORRECTION TROUBLE Usually line trouble - single. phasing at Check source of power supply. DON 7 l 1 i it won't start. starter. check with motor energized! Check l over loads, controls and fuses. Check 1 1 voltage, compare with name plate ! 1 rating. Improper connection. , , Check connections with diagram , l 1 Disconnect motor from load to see if r i Load too hean. it starts without load. Reduce load - or replace motor with unit of greater ; capacity. , i High voltage. Check input voltage, and for proper tueisme hum. connections. , Unbalanced rotor- Balance with weight attached by cap screw and lock washer. Replace bearings before rotor rubs , Excessive wear of sleeve bearings. stator. Check abgnment and tubri. I (uneven air gap) cation. t l b- Foreign matter in air gap. Take out rotor; clean air gap. I Regular clicking. Replace bearing; clean wells and renew Rapid knocking. Bad bearing; dirt in lubricant. lubricant. I
- 1. Misabgnment Reahgn units. $
Vibration
- 2. Accumulation of dirt on fan. Clean Motor. '
- 3. System natural frequeney(resonance). Alter rigidity of base structure.
Run motor disconnected for check. I
- 4. Vibration in driven machme.
Eliminate source in machine,if l possible. ,
- 5. Twisted Base or flange. Check flange alignment and shims. ;
5
- 6. Excessive end. play. Adjust end play.
- 7. Shaft bent or flange face run out. Straighten or replax shaft: Peen and turn flange face.or. replace housing. ,
Vibration - following motor repair. Rotor out of balance;from holes Balance rotor.(Remose motor from drilled, balance weights or fans shifted installation,if necessary.) on new rotor. hicasure load. compare with name. Motor over. heating.(Check with Overload. Pl ate rating; check for escessise theiraometer, thermocouple;or by fricti n in motor. drive or machine. resistance don't depend on hand). Reduce load,or replace motor with unit of greater capacity. Single phase. Check current all phases. Dirt in nmtor. Check flow of air - or sentilating tubes. Blow out motor and sentilatmg tubes. Use solseni on wound section if necessary - use " ram rod" m tubes cf tube.t)pe motors.
%9
= ,r TROUBLE CHART TROUBLE POSSIBLE CAUSES CORRECTION G1 Unbalanced voltage. Check voltage, all phases. g hiotor over. heating. (Check with thermometer, thermocouple, or Rotor rubbing on stator. Clean air gap - Check alignment.
by resistance don't depend on Replace bearings,if necessary. hand). Continued. Open stator windings. Disconnect motor from load. Che6k ; idle amps for balance in all three phases. Check stator resistance in all - three phases for balance. I Over voltage /under voltage. Check voltage and compare to rating plate. Ground. Locate with test lamp or megger and repair. Improper connections. Recheck connections. Fine dust under coup!mg using Misalignment. ' Reabgn unit-rubber buffers or pins. Misalignment. Reabgn unit. (check mountmg and Bearing over. heating . , flange abgnment.) ; Insufficie..t end play. Adjust end play. l l Reduce thrust from drive or machine j Excessive end thrust. Recheck mounting and abgnment. Too much grease (ball or roller Reheve supply;(open grease dram. bearing). operate unit one (1) hour.) l
' O:1 level too high or low. Add or reduce as indicated on sight i gauge.
l I Oil leakage or excessive oil usage. Excessive pressure or vacuum in l bearing cavity.
- 1. Ileat citehange tubes blocked. Clean tubes l
I (Enclosed hiotor) l l 2. Oil Stand.Pape Eccentric or Straighten or replace pipe out of round. and rescal fits.
- 3. Parts not sealed properly. Seal parts:
Drains: condensate and 'or breather vent. Conduit boxes (auxihar) and moto: l leads) Partmgs; joints and oil guards l 6
- 4. Loose heat exchange tubes Roll tubes esp.mding tube mside (Enclosed hiotor) diameters using proper espJnsion hv:
improper Oil used. Use non to.immg oil. Excessi.e oil foaming Ifigh Oil level h l i bloisture in oil I""##' "UI
- II"'I'#" "" N
! ggupe CIeJi1 and lepIJie oll.
12 s_
SENERAL NOTE: If equipment is operated intermittently in very I Routme. regular maintenance is the best assurance of damp locations, it should be protected by space l miuble free. long. life operation. It prevents costly shutdown h;sters. To retard corrosion, grease all machined 1 and repairs. Two major elements of a controlled maintenance fits when the unit is reassembled after a l 4 program are: maintenance check. Tramed personnel who KNOW the work. LOADING. Guard against improper loadmg. Oserlaoding causes overheating and overheating will shorten insulation Sy stematic records, containing at least the following: hfe. A winding subjected to a 10* temperature rise above the maximum limit for its class wi!1 have its insulation hfe Complete nameplate data (Service Record). reduced. Prints (Wiring diagrams, certified outline, sectional While somewhat less serious, underloadmg a motor is l vie w). , improper. It does lower the power factor which results in higher power cost Any motor consistantly under loaded Paris list (see reae of this section). should be replaced by one cflower power rating Stock of essential parts. The amount of work a motor can safely produce is not ess.s i to measure. A rule of thumb for most cases would be: If the list of spare units in storage. input terminal voltage agrees with the rating plate, the amps are equal to, orless than, the rating plate salue:and the speed ! Alignment data (departures from perfect alignment, (R.P.M.)is equal to, or more than rating plate specification. allowance for high temperature). l then the motor is not overloaded and is probably developmg Results of regular inspection (Service Record). DUTYis also part of the H.P. relationship. Motors hase a time Repairs (Service Record). requirement, which is specified as duty at a given ambient temperature and, horsepower being v<ork, produces heat. abrication data: his " work. heat" added to the ambient heat. then becomes the environment temperature of the motor. Duty is therefore . Method of application expressed in time at a given starting temperature. i' Types of grease for wet, dry, hot or adverse ' locations . exceeded without exposing the motor to the - hazards of overheating. If the starting temperature j Stock oflubricants. (ambient) is greater than the ratmg plaie Maintenance cycle by locations (Some require specification the motor output H.P. should be more frequent lut,rication). reduced to compensate; refer to the factory for instructionsif this problem occurs. Record for each unit (Service Record). TEMPER ATURE. Electrical apparatus operating under PR'EVENTIVE M AINTENANCE normal conditions becomes quite warm. Although some places r,ay feel hot to the touch the unit will be within Seeeral of the more important items of good maintenance are guaranteed hmits,if it is operating within ratmg plate limits discussed in the following paragraphs. Others should be and ventilation is not restricted Check temperature with a added when adsersc or unusual conditions exist. recording device, thermometer, thermocouple or by resistance. > Inspection. Each machine should be inspected at regular i intervals. The frequency and thoroughness will depend on The Totat Temperature - not the temperature rise, is the the amount of operation, nature of service, and the measure of safe operation. Imestigste the operatmg ensironment. Inspect for; conditions if the Total Temperature measured euceds , CLEANLINESS. The exterior should be kept free of oil, i dust, dirt, water, and chemicals. For a fan. cooled machine it 19 t* F (90* C) Class "A" insulation l ts particularly importarq to keep the air openings free of 230' F (119' Cl Class "B" iasulation foreign material. Do not block air outlet. 27.;* F (135* C) Class "F" insulatinn 302* F (150* C1 Class "II" in>ulation MOISTURE. On non explosion proof TEFC motors, a _ _ __ re mov able plug permits removal of any accumulated moisture. Drain tegularly. LOW INSULATION RESIST ANCE (see Correctne Muntenance.) ' 13
- CORRECTIVE CAINTENANCE c:mpressed air at 40 to 60 pti. If conditions warrant, use . .:
vacuum cleaner. Two factors that usually cause corrective mamtenance are icetrical failure or mechanical failure. The first sign of electrical failure is usually indicated by now insulation % hen dirt and dust are solidly packed, or wi ndings are coated resistance. Mechenical failures are usually preceded by with oil or greasy grime, disassemble th6 motor and clean excessive bearing noise, heat, and/or vibration. with solvent. Use only high-flash naptha, mineral spiritt a, Stoddard solvent. Wipe with solvent dampened cloth, or ui, Vibrati:n suitable soft bristle brush. DO NOT SOAK. Oven dry (150 * . F) solvent-cleaned windmgs thoroughly before reassembly. Most problems can be detected when inspected visually. Often, more importart than the actual vibration itself,is the Wmrlmgs of SUPER SEAL (GVS or RGVS) motors ma be clunge of ribration over a period of time. rinse, or sprayed with solvent, and immediately wiped d v with a cloth These windmgs may be cleaned with water as Check for: a fugitive detergent (ammonium olcate), or commen household detergents. Rinse with clean, clear water to F Loose or missing parts, such as - fan blades, nuts, bolts, remove all detergent. Hot water or low. pressure steam may screws, couplinrs, etc. be used. Wipe excess water from metal surfaces and oven drv at 200
- F. .
Accumulation of dirt on fan or rotor. Foundation construction - Base, grouting and associated After cleaning and drying windings. always check the insulation resistance. equipment supporting drives. Vibration can be amphfied by weak construction.
-usociated equipment - Disconnect equipment to determine #NN where the vibration is being generated. 1 thstory - When was vibration first noted? Was there a EXPLOSION PROOF MOTORS:
These motors are constructed to comply with the change m loadmg and/or duty of equipment? Has ambient ibration changed? U/L Label Service Procedure Manual. When reassembimg a motor that has the Underwriters' . label, it is imperative that the unit is reinspected J. Low Insulation Resistance and: . Factors that usually cause low insuls ion readmps are: 1. The original fits and tolerances arc Dirty windmgs (oil, dust, grease, salt, etc.).
- 2. All plugs and hardware are securely fastened
- 2. Excessive moisture.
- 3. Any part replacements are accurate
- 3. Mechanically damaged insulation. dupheates of the origmal.
- 4. fleat deterioration To violate any of the above will invalidate the significance of thislabel Factors three and four require extensive repairs by a Certified Service Center. Dirty windmgs can be cleaned and moisture laden wmdings can be dried.
Insulation Resistance Cle:ning Cheek and record insulation resistance regularly. Usually, the Clean the motor, inside and outside, regularly. Actual best time to check insulation resistance is durmg noimal conditions existing around the motor dictate the frequency shut down periods ef.cleening operations. Use the following procedures as they apply: A hand cranked megger, not over 500 volts, is the most Wipe off - dust, dirt, oil, water, etc. from external surfaces of the mas!nne. These materials can work into, or be carried 1to, the wmdmgs, or coat the heat radiating surfaces and
.ause userheatmg or insulation breakdown. CAUTION L
Remove dirI, dust, other debiis from ventilating air intet. Do Semi-conductor's. small iransformer s. *of tare not pernut such matter to accumulate near the inlet Do not regulators and other desiees that may be mjured operate motor with air outlet blocked, or restricted. Clean by the high soltage, must not be in the circuit open motors internally by blowing with clean, dry __
I y standards of the Institute of Electrical and Electronic CAUTION inPneers (IEEE) No. 43
- is an excellent reference for the
...nng of insulation resistance. Very briefly, the publication Temperatures must be carefully controlled. Avoid nmends that stator winding insulation resistance, (at hot spots. Avoid radiant type heat because some . (-)
measured with 500 volts d.c. - after one minute, Parts may become scorched before remote parts
.is.utd not be less than; reach desired temperature. !
R tance luted Voltage + 1000 , 1000 Megohms Itu, t'ormula is satisfactory for most checks. 1. Remove bearing housings. ,
.e..cm.:=,. e.,,ine .r public.is. 42 is osa tra s.
- 2. Remove rotor.
DRYING INSULATION Direct a fan on stator to carry away the moisture.
- 3. i If the megger reading is less than satisfactory, and the cause jj i, ewessive moisture in the windmgs; dry the windings by 4. Attach temperature indicators to windmg and appf) i app!)mg heat from:
heat as specified in Table 41. Follow procedures j described for drying insulation. .~
- 1. A warm air oven.
Eleetnc strip heaters. Circulating Current Drying
- Circulating currents through the coils. 1. Remove bearing housings.
The heat should be applied slowly so the desired temperature 2. CENTER the rotor in the stator core, , um not be obtained before six hours.
- 3. WEDGE fiber strips into the ir aer part of the air gap.
so that rotor is not touchmg stator. TABLE 41 4 Direct fan on unit to blow away excessise moisture. INSULATION DRVING TEMPERATURES
- CLASS " A" CLASS "B" CLASS "F" CLASS "H" 5. Attach temperature indicators to windings snd follow 245' F 275
- F the procedures prescribed for drying insulation. Do no:
IG* F 200* F exceed the drying temperatures in table 41. 94* C 118 ' C 135* C 75* C
*cian s "F"and "H"Insuteted Units should be baked at 70?. specirled terperet we (to nweid steasn inside edndan.)t:w ebout e ts hours,berore
,e,.i.e, CAUT W
... peres.. i. ,.i.e d i. 4,,in ee Insulation resistance will decrease as the machine
! Insulation resistance should be measured before the heat is warms up;but will begin to increase as the drying ! qphed. and every six to eight hours thereafter. process continues. Use oven drying method if
- I megohm reading is less than 257 of value NOTE: Insulation resistance will decrease as the machme determmed by the resistance . megohm formula
' l warms up; but will begin to increase shortly as the , dryout continues.
- 6. Apply a controlled current of the same number of j A uniform temperature must be maintained in the machine Phases, and the same, or less than rated frequency to i
' to obtain constant resistance readmgs. % hen the megger the windmgs. The voltage used should not be more readmgs teach a constant value, the drying out process is than 107c of normal. nor should it cause rnore than complete and may be discontinued. If readmgs are not 607r of normal full load current to pass through the , l Littsfactory (high enough), check for other causes. windmgs. Warm Air Oven Drying % hen the insulation resistance has reached one half of the ' minimum value descimined by the formula a voltage of 1.M '
- 1. Remove bearing housmgs. of notmal may be apphed. '
i . 1
. Remove rotor.
Bake in oven at temperatures specified in Table 4.I and NOTE: For more detailed information about insulatron f' , maintenan.e. see factory in,truetions 0.W7.NI. = ' ( tollow pioeedures degribed for dryinginsulation, L l 15 f
41'
.. c BEARINGS CAUTIEN '
't.ong life of bearings is assured only by maintaining proper Oil level w Il rise above center of gauge while um, 9 shgnment, and good lubrication at all times. Some factors s running. Avoid addmg lubricant to beann, i that can cause excessive bearing noise and heat are: while running.
t Incorrect alignment of couplings. ^ . 1. Grease Lubr.ication
- 2. Excessive, or wrong direction of thrust. g The frequency of relubricating bearings and the ag ,
- 3. Improper lubrication. added each time, depends on two factors - speca ,,
service. As a guide the following is recommended. BEARING LUBRICANTS - Grease: Prior to shipment, motor bearings are lubricated with the proper amount and SPEED (RPM) RELUBRICATING FREQUENCY *' grade of grease to provide six months of satisfactory service under normal operation and conditions. It is good practice, 3600 6 Months ] < (4.000 Hours) .: however, to check bearings of newly installed motors for _ proper lubrication. 1800 12 Months l or (8,000 Hours) ,c a For best results, grease should be compounded from a Less
'ithium soap base and a good grade of petroleum oil and
* "' ""* ' ""' * "** "' '"' r 8 8 ' " a" '" S v' "' 8 u a n e a.
stabilized against oxidation. NOTE: A serious mistake is daily lubrication of bearin Grease should " Channel" under all operating conditions and As well as being wrong, it is a dangerous practice. should not be " Soft"(high penetration) or whip mto a hquid particularly when grease is added without during operation. removing the drain plug. The excess grease must go somewhere and usually it is forced into and It should be of No. 2 consistency for double. shielded,No.3 through the inner bearing cap and is then thrown consistency for open or single shielded bearings. Operating into the windmgs. Proper lubrication is deured. temperature range should be from - 15* to + 250
- F for but some under. lubrication is less dangerous than Class "B" insulation, and to + 300
- F for Class "F" and over. lubrication "H". Most leadmg oil companies have special bearing greases ,
that are satisfactory. Relubricate bearings with the proper grade of grease as For specific recommendations, consult the factory.
- 1. St p the motor and lock out the switch. !
BEARING LUBRICANTS - Oil: Motors with oillubricated bearings are shipped without oil. A rust inhibiting film 2. Thoroughly clean off and remove grease inlet plu;. protects the bearing surfaces during shipment. Before drain pipe and plug from the outer bearing caps. I attempting to operate or store a motor with oil-lubricated I bearings, fill oil reservoirs as follows: HOTE: Drain pipes do not always permit satisfactory e:c8Pe foi displaced grease. It is a good practice to
- 1. Use an oxidation inhibited, non. foaming turbine oil rem ve drain pipes, if practical, and visually check having a pour point of about 20
- F. the drain outlet for grease. Use a wire to remove
** I'
- 2. Viscosity,at operating temperature should be.
- 3. Add grease to inlet with hand gun until small amount I
SSU BEARING TYPE of new grease is forced out drain. Catch used grease in l san Bearings suitable container. l 10 - 100 150 - 3 0 Sphericat Rollee Thrust Kingsbury Thrust 4. Remove excess grease from parts and replace inlet plug 150 - 200
- 5. Replace cleaned drain pipe and run unit at least one Oil Lubrication. (See Naraeplate 51-674 230 or 51436 840 hour to expel any excess grease.
l cn motot.) Before starting the motor, fill the bearing chimber to the center of the oil gauge. Always fill through 6. Replace drain plug. the fill pipe or plug at the side of the motor. Do not overfall, as the oil may then escape along the shaft s'nd enter the 7. Put unit back in operation. motor. Oil should be replaced whenever it shows signs of contamination. Oil must be free from grit and other injurious NOTE: Avoid adding lubricant grease to bearings while r substrntes; if protected adequately against contamination, unit is running-f good oil will remain usable for many years. If it is mandatory to add gicase while the unit is running. the Always correct oil or water leaks and replace evaporated correct amount of gic.ne must be predeiermined. The nbject lubricant promptly, is to avoid overgicasmg. Smee a bearms acts as a pump when 16
1
- I face to-face because cf simplicity cf mounting and angular
.ynning. the initial measurrments must be made with the rigidity. Fct high dow.? thrust loads, these bearings wi!! be ,ni ,r a stand still. Take measurements as follows: mounted in tandem. Stop the unit, lock out the switch, remove inlet pipe plug and outlet drain, as previously described. - - , y
. Add small, measured amounis of gre'ase to inlet until it . !
is evident that new grease is entering the drain opening.
=
- Insert the inlet pipe plug run the unit one hour to y __,1 y
espel excessive grease. .: Replace clean drain pipe and plug.
.s,bseq:,ent regreasings with the unit running, the grease ajJed should be not more than 2/3 the amount needed to TANDEM j nuke the pease corne out the drain when the unit was -
l
<tationary.
- t .
k f., g
- BEARING REPLACEMENT gk a , t
- A il Replacement bearings may be of s different manufacturer; T "-1 hat must be equal to the originals used in the motor. When N U j f 2
ordering bearings specify as follows: .,' W
=
q . I. Identifying numerals and manufacturer stamp on the M
$ t 7
i 1 bearing (number is also on motor name plate). l BACK.TO B ACK t! 1 Bearing Tolerance Class. Lc. (A.B.E.C. l) Annular F'r'* 81 - Typ** *a*=atiae fo' *arta' coatact bail tie **'as' Bening Engineers' Committee - Tolerance Class One. . To Replace Bearings: Electric motor quality.
- 1. Remove bolts holding bearing housings to yoke.
- 4. If deep groove bearings, specify the intemal radial clearance. (c. (A.F.B.M.A.-3) Anti. Friction Bearing Remove bolts holding end caps to housines. .
Manufacturers Association, Clearance Class Three. 2.
- 3. Remove end housings. Observe location of bearmg CAUTION shims, and remove shims if necessary. I Never use A.F.B.M.A.-O bearings on enclosed Remove snap ring or locknut in front of bearing. l
- 4. h motors with Class "F" or "H" insulation. '
- 5. Use bearing puller and exert force only on inner race to
- 5. Angular contact type bearing replacements must be remove bearing from shaft. ,
equivalent in angle of contact. Followmg is an . ;; interchangeabihty table: HOTE: Protect the shaft end with a cap (Figure 4-2) . j ante so w . . c . ,. .. . p.s.i, 7 300 C 30 300 7300 PW -SHAFT SHOULDER I 7300 P .~. 7x0 e os 730t G ac200 os 7300 Pw os BEARING OUTER R ACE} Pos TeoN l 7300 P of7X10 G 7300 PW DT xC -Er 303C0 DT
- 1
....,m0.............,.......... c.P 7 m .. m ..,.................,,......
.........a...............
s
\: 1 N, ,)
I I DUPLEX BE ARINGS g j
' i hiernal thrust transmitted from the driven unit is normally
/ !
tried by the top bearing. or bearings. If replacement is
.eessary. the new bearing must be the same type as the o%b y #
h 5 oripnal. Duplex bearings must be the proper type and j mounted in the identical manner. f . ,t 3 When throu loading is in both directions, these bearings are Fi;>r. 4 2 - rte rno..a. B* ** *a,* vth
- P"'i"- l mounicd back to-back (see Figure 4 1). rather than 17 I.
7F .
- 6. Cheu eaft diameter frr proper size with micrometer. ro Clean or replace inner bearing cap, and slide cap onto .
shaft. s.usmicavmc sNsinucTaows '
- m. 1 1 i ...
mao = .. .. , - . . ~ ,- . . . ....
- 7. Heat the new bearing in an oven (200
- F). While hot, o slide the bearing onto shaft (high thrust motors usmg a.,.~= .
.-.-o.w.--a......,,
- .,, I i
angular cor.:act bearings have a slip-fit on shaft and - . , lI ' ' need not be heated). Make certain the inner race makes 7.",,", "*-",.;",, *",. '", *'r,*,**,*,*,*,,,, a farm even contact with shaft shoulder. *=,.,a
, , ,, ,, %"",',,*,, *",";,p',,]
j j - a o, e ., _1 ,. HOTE: Do not subject beating io impact. '." f"*'.'**,' O *,.".'.". M .*."""O,.".*."..*.'.'.~ l O -.*..~ ... f.,
.-. 3 ,) . . .. .Z)
~
- 8. Let bearing cool - pack bearing caps per table (4 2) oom.............,,,,,,,,,,,
with proper grade of grease. Pack all open beanngs full to e between balls or rn!!ers, but remove excess grease from Fieure 4 Lub,ication & End Play instruction Plat. i , Ihe outside of the retainers. Full packing of a cap or bearing housing cavity should be done with a giease - gun. GRE ASE RE PACKIN G TAnLE 4.2 , P, . T., n... n. Thrust Bearing. Prmcipal elements of a "Kingsbury" th... 7r P' *, ,,,,,as o ,... . i ., bearing are the rotatmg runner and the stationary pvs i. n,,,,,,,, o .., t. , e..., o...' shoes (see Fig. 4-4). The runner receives the load, usuaN T C" C C C"' through a massive nut or hub called a ' Thrust Block." Thn runner, made of cast iron or steel, has a high'y pohshed and A oper.o n ,c,.... v.nic.: % roni 4 Nii t. ruti mn tapped surface. The pivotal thrust shoes are faced wnh A cot.,c ..i v.m.. i %nn 4Nu % Nu Nu tin.hard babbitt, machined, then scraped to form an accurate surface plate. Check Bearing installation. Before reassembling the top end During operation, the thrust bearing revohes in an oil bs4 cap after mstallmg new bearings, check the top edges of the which covers the bearing Each shoe, being free to tilt shgr h , in any direction, sets itself by pivoting at a mmute an e. inner and outer races, with a dialindacator, for squareness of thereby causing a wedge. shaped film of oil to form betwee mounting To assure quiet operation and good bearing hfe- the shoe and the runner. An end play of .013 is preset at the I total mdicator readmg m each case must be within 0.001 in. factory by the machinmg or shimming of the guide beany baffle rmg. (Fig 4-4) ba Indicore the outer race, attach the indicator body to the shaft, allow the button to bear on the outer race, Guide Bearings: Designed to center the rotor with respect to and then rotate the shaft slowly by hand. the stator, these beanngs are normally made m tuo sectier.s to simphfy assembly or disassembly. Sb indicare the inner race, attach the indicator body to the bearmg bracket, allow the button to bear on the The upper fulde bearing. located just abose the thru i i top edge of the inner race, and then rotate the shaft runner, bears on a g.round and pohshed surface of the shaq I sleeve. The lower guide bearing rides on another pohshe., sl wly by hand. shaft sleeve. l t
- 9. Re install bearing shims reassemble end caps and end The thrust bearing, baffle ring. and two-thirds of both Fuide housmgs. bearings are immersed in oil. The remaining third recenti lubricant through the hehcal grooves that are cut into both END PLAY guide beanng surfaces.
Oil Operating Temperature. The normal temperature of the Motors designed for appheations mvolv.ing pnmanly oil should be about 50' to 65* C. The maumum s2fc contmuous heavy downthrust but having momentary values temperature for most bearings is 85
- C A T T///J BABB/TT of upthrust are equipped with ar. gular contact bearings that are not preloaded. The end play is hmited to .00310.00S in.
(.010 to .015 in. for spherical roller bearings) The bottom NOTE: Bearing temperature should not be judged b) bearing takes the momentary upthrust and prevents reverse fechng the bearing with the hand. semperature loadmg of the top bearings. should be measured by a thermometer er thermocouple placed as close to the babbitt as End play is hmited by means of shimming. Dependmg upon Possible. construction, the shims are located either between the . bearmg and the inside cap, or between the inside of the Thrust bearing is cooled by water pusing through the heat housing hub and the bottom inside end cap. On othe: models exchangmg copper tube, m the beann; od bath. T he rate of - the end play is limited by tightening the locknut on the shaft water flow is dependent on water temperature. schime of oil. abose the bearing mounting sleeve. See (Fig 4 3) and and the total fnction tosses (load) of the bearing. Suppl > the Nameplate 51436 840 on motor, necessary amount of wates ecquired to cool the bearmp. 18
. j
- 3. Unbolt bearing mounting sleeve from shaft and lift cut p test the tubing f:r water tightness - empty the oil I rtpoir. and if possible raise water pressure 50% above sleeve. '
normal. Another way -leave oilin reserv:ir; pressurize tubes
- 4. Lift bearing 'from pot by grasping or hooking to eth air and look for bubbles.
outside diameter of runner. hot bearing is discovered, or if the oil temperature climbs enormally fast, the cause must be found and corrected Deaning. All parts of the beanng and housings must be , in mcdiately. The anost common causes of hot bearings,in thoroughly cleaned before assembly. the order cf probability, follow: Remove anti-rust coatings with an approved solvent Use Stoppage or reduction of cochng water. non.linting rags or cloths for cleaning. Remove all burrs. 1. bruises or nicks, and rust from bearing surfaces. Bruises or
. Lack of oil (low oillevel). dents op shoe faces should be removed with a scraper.
Contaminated (dirty) oil. Shght rusting of the runner face may be removed with a fine oil.st ne. If deep rusting occurs, refinishing will be necessary.
.t. Misalignment (couplings or bearings).
Flugged oil passages. CAUTlON ; 5. Never use a coarse-grained stone, scraper, or a file l 6- Rough spots on shaft or bushings. on the runner face. ,
'. Imptoper internal clearances.
A wels, eys and b its must not ; INSTALLATION OR INSPECTION OF KINGSBURY., bottom or bind. Each shoe should be free to tilt in any i NRUST BEARINGS direction. Oil the runner face. Seal, with Permates or equivalent, all housing joints previously scaled. Rstir Removal I, i Dram oil. Unbolt and hft off bearing cover plate. Start Up. Make sure oil is up to the proper level (check sight i 1. gauge). After the bearing has been turned a few times under 'l
- 2. Remove housing bolts and lift rotor from stator by load. inspect the shoe faces - high spots should be remosed 'j i.
shnging under thrust bearmg housing;use the opemngs ~ by scraping. provided in the housing. in CAUTION .; nrust Bearing Removal Repeated trial starts can overheat the motor. e Starting currents are several times running current. ',
- 1. Unbolt and lift off drip co.er and cap.
heating varies as the SQUARE of the current. . Unbolt thrust block collar and remove two piece spht Allow time between starts for the windings to 2. guide bearing. % cool. THRUST l CK y BEARING COVER PLATE p
/hw / THRUST MOTOR BLOCK 50 s TOP CUIDE BEARING _
DRIP COVER ' OIL ' ST AND. PIPE [ N P 4 ' GUIDE BEARING I ': N OR SIGHT CAME i N,% s OlLLEVEL s -OtL RESERVOIR TH RUST - k Cet
+
I g' RUNNER - ; i
& N OIL OUTLET- q ,
l rQ , PlVOT AL l 'Y 5 HOE ' s -
- .. N OIL
^ ' ' *\ COOLING Coll 5 kRAIN DOWEL Pth #
THRUST BEARING HOUSING Fipare 4 4 Typical Kinghry Thrust Bearing 19
]b F V4:IIZl--
l EXPLOSION. PROOF MOTORS: l These motors are constructed to comply with the - U/L Label Service Procedure Manual. When
~~
I 'A'
]
reassembling a motor that has the Underwriters'
- label, it is imperative that unit is reinspected and:
- 1. The original fits and tolerances are -[
maintained l
- 2. All plugs and hardware are securely fastened.
- 3. Any part replacements are accurate duplicates of the original. l To violate any of the above will invalidate the ripre 65 - sheet nunous cheek.
significance of thislabel. Read the maximum and minimum values on the indicator as SHAFT OR FLANGE FACE RUNOUT the shaft is rotated slowly through 360 degrees. The difference between the readings shall not exceed 0003 Because inspection of flange faces, eccentricity and shaft inches. runout is rigorously enforced at the factory, vibrations aused by this alignment problem are rare and usually if shaft
' ut, face runout, or eccentricity are excessive; the Eccentricity And Face Runout Of Mounting Surfaces equipment has been mistreated in some way. I The eccentricity and face runout of the mounting surfacesis The method for checking shaft and flange faces is as follows: measured with indicators mounted on the shaft extension.
De point of the eccentricity indicator shall be at e40T E: On ball bearing motors, it is recommended that approximately the middle of the rabbet surface, and the I the test be made with the shaft vertical to point of the face runout indicator shall be at approximately minimize the effect of bearing elearances. the outer diameter of the mounting face. See Fig. 44 for typical fixture. Shaf t Runout Read the maximum and minimum values on the indicators as De shaft runout is measured with the indicator stationary the shaft is rotated slowly through 360 degrees. The
- cect to the motor and with its point at the end of the difference between the readings shall not exceed; .007 surface of the shaft. See Fig. 4-5 for typical fixture. inches.
I n Il n e 3 MOUNTING FACE TT ECCENTRICITY OF ,,, .. ,
" ~ ~ ~ -
RABBE1 l 6 l FACE RUNOUT
\
FEMALE RABBET l 310 4 Figure 4 6 - Eccente. city and face eunous check. N
P l.
. I I
. SPARE PARTS i
i l PARTS IDENTIFICATION , A recommended list of stock parts follows. Order these and ! l The drawings in this book are of the standard design. Most of cther parts, as required. from Allis Chalmers Manufacturing ihe parts should be easy to identify. If however. there is Company. 4620 Forest Avenue. Norwood. Ohio or through '. ume deviation from your machine. consult the factory or the nearest sales offsce. (For a hst of these offices and 3 ihe drawings supplied with your unit. certified service centers, see directory 25X8109.) RECOMMENDED PARTS LIST , RecommeMed Minimum Stock t Description of Part Number of Units in Operation , Ittm 1 to 4 5 to 9 10 to 20*
- 10 to 20 i
1 M ot or C ompl e t e . . . . . . . . . . . . . . . . . . . 0 0 0 1 !, 2 Stator Coils with Winding Suplies* . . . . . . 1 Set 1 Set 2 Sets 1 Set ' 3 Bea r i ng s . . . . . . . . . . . . . . . . . . . . . . . . 1 Set 2 Sets 2 Sets 1 Set 4 Bearing Lock Nut 8 Washer . . . . . . . . . .. 1 Set 1 Set 2 Sets 1 Set , i
'For MiCLAD insulated Stator motors item 2 does not opply. ** This column to be used when Instud, stocking of one (1) M. CLAD stator is recorrynended. complete machine is not stocked.
t IDENTIFICATION PLATE i . I
\!! units base an identificetion (name) plate affixed to the 3. Horsepower and speed.
.rame (Fig 51). All the necessary information pertainmg to the machine can be found on this plate. Permanent records 4. Model number ,
are kept by the factory and filed by: , it is important when ordering spare parts or referring to your ',
- l. Serial number. machine to record as much data from this plate as possib'e ALWAYS include the serial number. >
- 2. Type and frame size.
{ F I NOTE: IF MOTOR HA5 MORE THAN THREE LEADS. THE CONNECTION DIAGRAMS ARE l U5UALLY STAR / PED ON THE NAME PLATE C OR ON A $EPARATE CONNECTION PLATE t 1, l (O , . . - - . ., A
. ---- ,O3
!C ' EA ALLIS-CHALMERS j c j i : l L. . --. sl womwooo ca.oINDUCTION MOTOR
. maosausa t----J -
1 MPs. '!? 2 RTPI IIRAuf I i6'!.
; j.o a '
Y,W Il it +- E LECTRIC AL i 1 filll CHARACTERISTICS ( ELECTRICAL ~ k 'ta'd CHAR ACT ERISTICS If . 'C. i
= IN5ULAT60N U Ol Y 2 1
F.eure 51 - Ident.f. cat.on Plate. my, Il' zi
SECTIONAL VIEW DRAWING i 1 5 1 NOTE: Bearing stacking varies, depending on thrust requirernents.
% i l
/ e-t _
,n
,, @N M ANGULAR CONTACT BEARINGS:
l g \ DB MOUNTED TC g, gwgyg,.u-I I t t I AngulaeContact Bearing /
~
j"*"" > _I e s D.T. (Tendem) Mounted -, e. s k- - 9
!f l 3 fx < ,,,,n, <.,
~
o c8
'a
. N ""5"'c^'"""""'""
/E g
- INN 1 ;.
r--.- PARTS LIST 5 h - Key No. Part Name l 1 Stator Yoke l 2 Stator Core Assembly {yj,jp[g") - 3 Rotor Assembly I l 4 Rotor Shaft L i ;l l 5 Conduit Box 6 Coil Supports
't 1
-- 18 (Parts list continued, pg. 23.)
21 .
)(-[a #eMk '
20 x- - : , O2i ! es [ [ 4 FIGURE 5 2; VERTICAL SOLID-SHAFT MOTOR F, TYPICAL GV CONSTRUCil0N (580/30 FRAME) 24 22 ' 23 es ; SOLID SHAFT CONSTRUCTION WITH NON -REVERSE STOP. 22
SECTIONAL VIEW DRAWING
,cTE: Bearing stacking varies. depending on '
e thrust requirernents. i --. fD - _a x Self Release Coupling *
'" 32
@Gib Keyy __ -
Rigid Coupleng * . n g,
; p --
4 .M b O -
--h[ h(~7 s
-l ( Oil Fell Pape g a .
l y.Tg; e
' W ! Oil Sight Guese "
. p i l Q ,
N \ l # / e l [MMD , .D 28 pff e-w 10 SPHERICAL ROLLER BEARING
- l 9 8 l PARTS LIST tc ntinu.oi LH me Lug l g No Part Name j
-l N :
7 8 Stator Coils Bearing Housing l , Og/ N 9 Oil Stand - Pipe Tube i F : ! iO 11 Oii orain Pige Oil Fill Pipe i s : 12 Bearing Cover Plate
,I % 13 Locknut & Lockw asher +
' \ll 14 l5 Drip Cover ff*hff l Screens l , i ;
16 Space Heaters
- l l 1 m$p\ ; 17 Housing Bolts I q IS Air Deflectors ;
I { i 19 End Housing ("P" Flange) Guide Bearing (Grease Lube) I i e 20 End Cap (Internal) Q 15 T- 29 , l 21 22 End Cap (External) j
/ , lg 23 End Cap Bolts 24 L oknut & Loekwasher i
) 21 * / 25 Thrust Block I l 1
/j!
/ 26 Locknut & Lockwasher
=
ha e<49
- 20 -4t, ; 27 28 Coohng coils & Suppor Spring Loaded = ,
J
//////41 Non Reserse Stop .
a 29 30 Breather st.cos ss: 31 Coupling Cose ! Top Cose Assembl> 24 22 23 19 32 33 Bearing Clamp ; l FIGURE 5-3; VERTICAt HOLLOW-SHAFT MOTOR . tna r:43 Aapniment i
- OP'*a'i-sruirua83 cu,iom<. i TYPICAL HSO CONSTRUCTION (580/30 FRAME) -
sche'i at Rou > b anns o nt>. I l 23
SECTIONAL VIEW DRAWING
. 13 14 4(
-/ Coupli H7,TE: Bearing stacking varies. depending on thrust requirements.
- }- 33 E -
7 y N gg._ .. a., , l3 Self Relesse Couplmg V j I
, j \
25 { M"' Dil Fill JB . N' 35 kA' . ~ I
' * * ' ~
d's 4 4 .. .. ', ANGULAR CONTACT BEARINGS: D.B. MOUNTED l [ %,n,9 go WITH NON REVERSE RATCHET. Wll
- v. -
, 4
/
e 1 3 . PARTS LIST
* '"' '"8
\
s
! d- 3 'R / gey i y y IF
/h No. Part Name
,E q""[ Mf. I Stator Yoke
[ =:=hh5ii!I
g Bg g M
, 7-i i
, - 2 3
Stator Core Assembly Rotor Assembly 1 8 8 'L. 7 4 Rotor Shaft (Ho!!ow) 8
, 9 5 Conduit Box 1 i .- *t - < 6 Coil Supports 7 Stator Coils
}
] .
', s 8 Bearing Housing H
q - j'] 9 Oil Stand-Pipe Tube i, I' A3 v 3 10 Oil Drain Pipe . i s 11 Oil Sight Gauge i
' I I{ , 12 Oil Baffle Ring i, j 13 Locknut & Lockwasher +
rt ' > 14 Drip Cover (Couphng Cover) i' - -
! _ 15 Screens
= r._ T 16
- Space Heaters
- mc m = = = ==h.
(Q@@@@ 5,p= l i t 17 Housing Bolts
%=ig:;gg';;g =a@@=
- d 18 Air Deflectors
[3333335 3 Im355 20
\
!f g
-- 19 20 End Housing ("P" Flange)
End Cap (Internal) i l u ,sq y ( S#,7 \/ 21 22 Guide Bearing (Grease Lube) End Cap Bolts j h)- - f+ s 19 23 24 End Cap (External) Locknut & Lockwasher W FAhW 25 Thrust Block ss.oo .ssa 26 Snap Ring 23 27 Bearing Spacer (When Used) 28 C 29 g oser Plate Shaft Locking Bar Assembly 30 Thrust Plate l 31 Ratchet Plate = FIGURE 5-4; VERTICAL HOLLOW-SHAFT MOTOR 32 Pan Carrier Plate = TYPICAL 500 FRAME: TYPE HSHG ,N p,P""8 * , 35 Locknut & Lockw.asher Ind I'la) Adjustment Optionat 5:vor.cd B> ruitumcr Non Rocric Rat.twa A..cmtil) . 24 A
P ,
.. SECTIONAL VIEW DRAWING N -
NE i4 NOTE: Bearing stacking varies dependmg on 5 - thrust requirernents. , RIGID COUPLING *
-=-
h ' 3 xe, PARTS LIST l I No. Part Name I 37 i
~? ,
Stator Yoke & Tube Assembly 2 Stator Core Assembly T , 3 Rotor Assembly
@7 4
' 4 Rotor Fan (Front)
]w a
r B - - -- - +,- - s 5 6 Rotor Shaft Rotor Fan (Rear) 4' T 7 Stator Coils o , , ,kl --/; 8 Coil Supports
; g pg 9 Stator Retaining Link N j
'. d Mi 3 41 10 Soc. Hd. Cap Screw & Lockwasher II Air Deflector l y'
' m'T l 4
l s i 12 13 Stud Air Deflector Lituae Luo
* - ' l 14 Space Heaters
- l
~-n m : y,R 15 Housing Bolts m- 16 End Housing (P" Flange)
. W*. 17 Grease Pipes q{
t L - l' ii s 18 19 End Cap (Internal) Retaining Ring hj :: $ 20 End Cap Bolt Guide Bearing (Grease Lube)
. 3 21 U . ,, ,
C ' l T i 7; 22 Slinger Locknut & Lockwasher T. J I j j m 23 24 End Cap (External) Non Reverse Stop Assembly *
; 6 7 j , J, t 25 Aux. Conduit Box
- C .
,n ,
s 26 Motor Conduit Box 'l 12 Oil Stand Pipe Tube l \ e. % 27 7~ d- k' 28 Thrust Plate l la [} Q ,' ( '% p g 29 30 Thrust Block Locknut & Loekwasher + ih. e h,, .. , 31 Coupling (Self Release)
- 4 16
]- LI 15 32 33 Soc. Hd. Cap Screw (Self Release)
Drip Cover
,l I ) _ \ 17 16 34 Fan (External)
I si.oos.ns* 35 Oil Baffle Rmg I 23 22 21 20 19 36 Bearmg Coser Plate f 37 Fan llousmg Assembly 38 Oil Fill Pipe 30 Oil Sight C.auge ..
' ' "'8 .tGURE 5 5: VERTICAL HOLLOW. SHAFT MOTOR (TEFC) $ $ii,3, us pe ng(tom i 42 Couptmg(Rigidt
- k TYPICAL 23,26 & 30 FR;ME: TYPE HSZ 43 Bolt (For RigiJ Couplme) * "
_ . _ _ - r. ornaius sraitiat u> r i..awi
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g OlL MIST LUBRICATED BEARING HOT E: Bearings are located above oil lesel, 3 j and during storage periods, must be l gs g j coated with a fresh film of oil each
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FIGURE 5-6; VERTICAL SOLID-SHAFT MOTOR (TEFC) TYPICAL 23; 26; & 30 FRAME; TYPE AZV \ j I l 26
- - PARTS LIST HOLT.OW SH AFT NOMENCLATURE Key 0- Port Name Angular Contact Bearing-A ball thrust bearing capable of Stator Yoke & Tube Assembly taking high thrust in one direction only.
I 2 Stator Core Assembly DT Bearings-Two (2) angular contact bearings mounted I together to take extra high thrusts in one direction I otIt s m y 4 Pole & Slower) On3Y ' 5 Rotor Shaft ei Rotor Fan (Rear) DB Bearings--Two (2) angular contact bearings mounted 7 Stator Coils together such that each one will take high thrust in 6 CoilSupports opposite directions. 9 Stator Retaining Link Soc. Hd. Cap Screw & Lockusher End Play-The axial movement of the shaft. 10 It i Deflector Guide Bearing-The bearing mounted in the housing opposite the thrust bearing and is a deep groove ball bearing. M DeGecer Space Heaters
- Thrust Block or Bearing Mounting Sleeve-The member
. 14 i Housing Bolts keyed to the motor shaft on which the inner race of l 1516 Bearing Housing ("P" Flange) the thrust bearing is mounted.
Continuous Down Thrust -The thrust developed by the d a ( nternal) weight of the pump shaft and hydraulic unbalance. 19 End Cap Bolt ' 20 End Cap (External) This is the thrust value to which the motor thrust Shngerdocknut & Lockwasher bearings are sized. 21 e ' $ l"be) Maximum Down Thrust-The momentary thrust that can be y G, R er p emb)y . developed during shut.down of pump. .. 24 Aux. Conduit Box . 25 Motor Conduit Box Momentary Upthrust-This thrust may develop in some $ Oil Stand. Pipe Tube shallow settings during startup. Momentary upthrust is d 26 27 Snap Ring carried by the Guide Beanng. I 26 Angular Contact Bearing (Oil Lube) Rigid Coupling or Bolted Couptmg-The member to which 29 Thrust Block Locknut & Lockwesher the pump shaft is keyed. Coupling is bolted to the - 30 31 Locknut & Lockwasher (End Play Thrust Block so that during start.up the Guide Bearing 3' Adjustment) will carry the momentary upthrust. R 32 Drip Cover Self. Release Coupling- Similar to Rigid Coupling except that ( ," 33 " "$'"8 it will release from Thrust Block in the esent an 5 Exte nal) accidental reversal begins to unscrew the pump shaft. :
'35 Bearing Cover Plate After being disengaged, the motor is free to revohe l ""
36 Shriger , without damage to moter or pump. 5 37 Thrust Plate ' 38 Od Bafne Ring Coupling Bore or Clutch Bore-That bore or hole in the ' l
' I* Coupling in which the pump shaft fits.
Oil Pp l 41 Oil Drain Pipe Non-Reverse Ratchet or Backstop-A device that permits 42 Beanng Housing (Top) motor to turn in only one direction. It is used mostly , 43 Bearing Puller Sleeve in conjunction with Rigid Couphngs to prevent turbine 44 Oil Well Cap (inside) pump backsp:n, caused by water column recedmE n 45 End Cap & Bafne Assembly when motor is de-energized. , Pump Adjusting Nut-The nut mounted on the pump shaft . O! por Impeller above the coupling. used to raise and lower the pump 48 Pressure Equalizing Tube 49 shaft to set the impeller to its proper position. After j , Oi! Sight Gauge (Top) 50 the impeller is set, the nut is bolted to the couphng. 51 Sleeve Bushing Oil Cup The nut is supplied by the pump company. b") : i Bearing (Oil Lube) Hold Down Bolts for Self. Release Couphng-Bolts used to f, 54 End Cup (External) hold the coupling in place during shipment. The) must [ be removed during installation. f. 55 Oil Baffle 56 End Cap & Bafne Assembly (Bottom) laking Bar-A bar used to prevent the motor shaft from l 57 Oil Reservoir turning while the pump adjusting nut is bemg turned.
]; *[i e Supplied with motors thJ1 do not have non.reserse ratchets.
60 End Cap (External) 61 Od Bafne Pump Shaft Guide Bushing..A bmnte bushing pressed in a 62 Od Baf0e Cup counterbored ho e in the bottom of the hollow shaft.
' This bushing supports the pump shaft from lateral .
- Opuun41 5pesified By Cust.>rner's Order. movement.Supphed onl) on request.
27
NOTCR SERYlCE RECORD (51x2285) . Seri:1 No. Her:cpow:t Type 5pe:d Volts Amperes Phese Cycles lxsuletion Class Temperature Rise C Frem Size N ! C:aection Diegrem Refer i teter D nce Order No. Item No. Date Perchesed I j MACHINE TYPE m. BEARING 5 5 HAFT EXTENSION O Herimental ^ 5 O Yertical O Bell O R oller p sleeve Length I O Meisture Resis'ent Size: Diameter ^ O Open Drip.Preel p,en, ~ 0 $yper.5 el laternal Thread O Tetelly. Enclosed Rest ~ Enternal Threed i O Emplesien Preef Lubricatien Keyway Date Indo l ' ' '.'" A PP l ite'i " l _ I l ii Data Repaired
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