ML20140D100

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to MP 720.11, Overhaul of Fuel Pool Cooling Pumps
ML20140D100
Person / Time
Site: Millstone  Dominion icon.png
Issue date: 05/28/1997
From: Newman J
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20140D099 List:
References
MP-720.11, NUDOCS 9706100242
Download: ML20140D100 (59)
v • d • e


Text

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< 4 MILLSTONE NUCLEAR POWER STATION

/ /

MAINTENANCE PROCEDURE l

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Overhaul of Fuel Pool Cooling Pumps MP 720.11 Rev. 4  ;

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. 'G l-97C68 6-2&49 PORC Mtg. No: Date:

Effective Date: (,-LCn l

C]' Level of Use Subject Matter Expert:

J. Newman General 9706100242 970603 PDR ADOCK 05000245 i P PDR

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,- 4 Millstone Unit 1

, 2 l(v Maintenance Procedure i

l Overhaul of Fuel Pool Cooling Pumps )

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l l TABLE OF CONTENTS l

l 1. PURPOSE....................................................2 i

! 2. P RER EQ UIS ITES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 l

3. P R ECAUTI O N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 l 4. I NSTR U CTI O N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.1 Pu mp Disasse mbly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2 Pump Cleaning and Inspection . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 19 1 l 4.3 P ump Rep ai r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.4 Pump Asse mbly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.5 Operational Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5. REVIEW AND SIGN- OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6. R E FE R EN C ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 l

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7. SUM M ARY OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 ATTACHMENTS AND FORMS Attachment 1, " Pump Cross-Section View" . . . . . . . . . . . . . . . . . . . . . . . 48 Attachment 2. " Pump Exploded View" . . . . . . . . . . . . . . . . . . . . . . . . . . . .

52

! Attachment 3," Casing Flange Gasket Fabrication Details" . . . . . . . . . . . 53 Attachment 4, " Upper Casing Bolt Tightening Sequence" . . . . . . . . . . . . 54  !

1 Attachment 5, " Inspection Data Record" . . . . . . . . . . . . . . . . . . . . . . . . . . 55 )

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Level of Use STOP~ THINK ACT ' REVIEW MP 720.11 Rev. 4 General 1of58

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1. P_URP_QSE

'L 1.1 Objective 1

l The objective of this procedure is to provide instructions for overhauling l the fuel pool cooling pumps.

1.2 Discussion This procedure provides guidance for overhauling the fuel pool cooling pumps. Each of these pumps is a 4 X 11SC horizontal, split-case, l centrifugal pump manufactured by the Ingersoll-Rand Pump Co. .'

l l The overhaul instructions provided in Sections 4.1 through 4.5 cover pump

! removal, disassembly, cleaning, inspection, repair, assembly, and operational checkout.

1.3 Responsibilities l

1.3.1 If necessary, Condition Based Maintenance Department is responsible for balancing impeller and shaft.

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1.4 Applicability This procedure applies to the following local ids:

M4-11A(PMP), "1 A Fuel Pool Cooling Pump-Pump" l M4-11B(PMP), "1B Fuel Pool Cooling Pump-Pump"

2. PREREOUISITES 2.1 General  ;

2.1.1 This pump falls within the ASME Section XI boundary. Planned  !

repair or replacement of pressure-retaining components has been evaluated in accordance with WC 3, "ASME Section XI Repair and Replacement Program."

l 2.2 Documents 2.2.1 C MP 710A," Horizontal Shaft Alignment" 2.2.2 MP 791.0 (Att), " Fuel Pool Cooling (310)" l 2.2.3 WC 10 (Att)," Lifted Lead and Jumper Device Data Sheet" Level of Use STOP ^ THINK ' 'ACT R$ VIEW General 2 0I58 l

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4 W 2.3 Measuring and Test Equipment (M&TE) h 2.3.1 All M&TE has been calibrated in accordance with WC 8, i

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" Control and Calibration of Measuring and Test Equipment" and  !

the calibration is current.

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2.3.2 ~ QA torque wrenches (click or dial type) with a minimum accuracy and maximum torque wrench full scale value listed in the table '

below for the specified torque application range.

Specified 7brque Maximum Torque Wrench Minimum Application Range Full -Scale Value Accuracy l 114 to 126 ft*1bs Between 150 and 600 ftelbs 5% l l I

2.3.3 Dial indicator with a 1-inch travel and minimum accuracy of 0.0005 inch, such as OA-1504 (four required) j 2.3.4 Inside micrometer with a range of 2 to 3 inches and an accuracy '

of i 0.0005 inch, such as MPS-49

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2.3.5 Inside micrometer with a range of 3 to 4 inches and an accuracy 1 of 0.0005 inch, such as MPS-50 )

( 2.3.6 Inside micrometer with a range of 5 to 6 inches and an accuracy of 0.0005 inch, such as MPS-52 2.3.7 Outside micrometer with a range of 0 to 1 inch and an accuracy of 0.0005 inch, such as OA-1568 2.3.b Outside micrometer with a range of 1 to 2 inches and an accuracy of 0.0005 inch, such as O A-1569 2.3.9 Outside micrometer with a range of 2 to 3 inches and an accuracy of 0.0005 inch, such as MPS-42 2.3.10 Outside micrometer with a range of 5 to 6 inches and an accuracy of 0.0005 inch, such as MPS-44 2.3.11 Thermocouple thermometer capable of measuring up to 400 F with an accuracy of 1*F, such as OA-1703 2.4 Tools and Consumables 2.4.1 Tools 4

Level of Use STOP THINK ' ACT REV!EW Rev. 4 General '

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l Abrasive stone (s)

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  • A!!en wrenches l
  • Cold chisel
  • Crescent wrenches  :

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. Drill

  • Drill bit, No. 7 l t
  • Feeler gage  ;
  • Files a Grease gun l 1

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  • Impact Wrench a Level l Machinist's scale
  • Mallet
  • Mechanic's set of combination wrenches
  • Mechanic's standard tool kit
  • Pipe wrenches l i
  • Razor knife i i

a Ruler l

  • Scraper l

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  • Set of Allen wrenches l

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  • Sharp knife (for cutting gasket material)
  • Sledgehammer (2 lbs)
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  • i Level of Use STOP THINK ACT' ' REVIEW Rev. 4 General 4 of 58

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  • Small grinder i- i
  • Snap gage l. i 1
  • Snap ring pliers
  • Socket set with ratchets and breaker bar

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  • Spanner wrench i'
  • Strap wrench -

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  • Tap, %-inch UNC l-
  • Wire brush j

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Bearing puller or arbor press i

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  • Chain fall,1/2-ton capacity minimum I . .

Dialindicator alignment fixture i

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  • Eyebolts,7/16 i nch (two required)

Hydraulic press t

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  • Induction bearing heater i
  • Paint buckets (1-gallon capacity)

Receptacle for draining bearing housing oil (1 quart capacity minimum) i 4 .

Rope (approximately 40 feet,1/2-inch diameter)

  • Slings,1-inch diameter minimum, one at 4 feet, two at 2 feet

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  • Shackles,3/8 inch,(two required)

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  • Stands (horses) and planks I i

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Tbrch with rosebud (two required)

  • lbbe light 1 l * ' V-blocks or lathe I

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General 6 of 58

2.4.3 Spare Parts

  • Bearing end cover gasket (2 required)
  • Case wear ring (2 required)

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  • Impeller Impeller key  ;

Impeller setscrew (6 required)  ;

Impeller wear ring (2 required)

  • Mechanical seal assembly'(2 required)

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  • Radial bearing
  • Radial bearing housing
  • Seal ring (2 required)
  • Shaft

Shaft sleeve nut (2 required)

  • Shaft sleeve O-ring (2 required)
  • Thrust bearing
  • Thrust bearing housing l

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Level of Use 'stOP TkNK - ACT ' REVIEW Rev. 4 General 7 of 58

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2.4.4 Consumables l

Approved anti-seize compound such as nuclear-grade Never-Seez Approved cleaning solvent such as Polywater Hydrafoam i 2020 All Purpose Cleaner Approved gasket adhesive such as aviation-grade Permatex Approved shaft sleeve O-ring lubricant such as Versilube Approved thread sealant such as PRI 101N Pump lubricant i

  • Cribbing

. Emery cloth (coarse and medium)

  • Fine-grit abrasive O

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  • Herculite
  • Low-lint cloths
  • Scotch Brite pads
  • Tape

! 2.5 Definitions 2.5.1 DE-MAGNETIZE 'Ib deprive of magnetic properties 2.5.2 Radial end--Inboard (coupling) cnd i 2.5.3 Thrust end--Outboard end

, 2.5.4 TIR-Total indicated runout

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MP 720.11 Level of Use STOP T'H!NK ' ' ACT' REVIEW Rev. 4 General- s of 58

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3. PRECAUTIONS

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3.1 Prior to disassembly, match mark components as necessary to aid in reassembly. Do not match mark delicate parts or critical mating surfaces.

3.2 Ensure all chemical consumables to be used in or on power plant components are controlled in accordance with CC 1, " Control of Chemical Consumaole Products," and that a Restricted Use Permit has been issued as necessary.

3.3 Ensure all combustible materials, flammable liquids, compressed gasses, and ignition sources are used in accordance with WC 7, " Fire Protection Program."

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Level of Use sToP THINK ~ ACT REVIEW Rev.4 eneral 9 of 58

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4. INSTRUCTIONS I

4.1 Pump Disassembly l

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l '4.1.1 DISCONNECT the following- 1 1

Seal water piping

+ Upper casing vent piping 4.1.2 Refer To Attachment 1, and REMOVE fasteners securing gland plates (S-14) to casing.  !

1 4.1.3 SLIDE gland plates away from casing as far as possible. )

4.1.4 UNCOUPLE pump and motor as follows:

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a. REMOVE coupling guard.
b. MATCH . MARK the following components:

Pump coupling hub

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c. REMOVE fasteners securing coupling cover halves.
d. REMOVE grid.

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e. REMOVE coupling gasket.

4.1.5 REQUEST dual verification, and MEASURE as-found coupling l hub separation dimension as follows:

a. MEASURE minimum coupling gap.
b. PUSH rnotor shaft outboard and MEASURE maximum coupling gap.

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Level of Use STOP THINK ACT REVIEW Rev.4 General lo of 58 l

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[] NOTE l One half of the difference between the minimum and maximum couphng i l hub gap measurements is the as-found coupling hub separation l dimension. l l

1 l c. CALCULATE as-found coupling hub separation dimension.

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d. RECORD as-found coupling hub separation dimension onto i Attachment 5. '

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NOTE The instructions for draining the thrust bearing housing are the same as those for draining the radial bearing housing.

4.1.6 DRAIN bearing housings as follows:

a. POSITION suitable receptacle beneath thrust bearing housing.
b. REMOVE plug fron' bottom of bearing oiler, and DRAIN oil into receptacle.

NOTE s l The rotating assembly can be removed from the pump without moving the motor. i 4.1.7 IE motor must be moved in order to gain access to pump  ;

components, MOVE motor as follows: '

a. MARK motor leadwires.

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b. DISCONNECT motor leadwires.
c. RECORD lifted leads onto WC 10 (Att)," Lifted Lead and Jumper Device Data Sheet."

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iO MP 720.11 Level of Use STOP THINK ACT REVIEW Rev. 4 General 11 of 58 L

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. NOTE Motor weighs approximately 460 lbs.

d. DISCONNECT any conduit that could interfere with movement of motor.
e. RIG motor as necessary to permit motor to be turned.
f. REMOVE motor hold-down fasteners.
g. LIFT motor and ROTATE motor as necessary.

<. h. E applicable, REMOVE and LABEL motor shims.

i. PLACE motor support blocks beneath motor.
j. LOWER motor onto support blocks, 4.1.8 REMOVE upper casing as follows:

NOTE Upper casing weighs approximately 80 lbs.

a. REMOVE fasteners securing upper casing to lower casing.
b. REMOVE casing dowels,
c. INSTALL, but do not tighten, jacking bolts into lower casing.

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d. Evenly TIGHTEN jacking bolts, and JACK upper casing $

from lower casing.

c. E necessary, RIG upper casing.
f. LIFT upper casing as straight as possible, and MOVE it to a suitable work area.

4.1.9 REMOVE rotating assembly as follows:

  • O Level of Use 'STOP' THINK ACT REVIEW General Rw. 4 9, g ,

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; , o 4i I .4 - a. REMOVE thrust bearing oiler.

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b. REMOVE two t rust bearing hoasing dev.els.

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j. c. REMOVE faceners securing thrust bearing housing to case
bottom half. -

o e s i d. REMOVE radial bearing oiler.

ii: e. REMOVE two radial bearing housing cowels. i f.

c REMOVE fasteners secuting radial bearing housing to case i bottom half.

NOTE U . Rotating assembly weighs approximately 105 lbs.

g. IE necessary, RIG rotating assemb:y.

j.- h. LliT rotating assembly as straight as possible, and MOVE it j .

to a suitable work area.

f.

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i. COVER openings as necessary te prevent foreign objects from entering systern.

f! j. REMOVE casing gasket (170).

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ji 4.1.10 DISASSEMBLE thrust-end components as follows:

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' a. . REMOVE fasteners securing thrust bearing end cover (160B) to thrust bearing housing (159).

b. REMOVE thmst bearing end cover (160B).
c. REMOVE thrust bearing end cover gasket (262).
L ~d. REMOVE thrust bearing snap ring (397).

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e. Using bearing puller, REMOVE thrust bearing housing (159).
f. REMOVE thrust bearing (204).

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g. REMOVE thrust bearing housing seal ring or bearing

{n} isolator (308B) as applicable.

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NOTE

Pumps equipped with a bearing isolator have no flinger. l 2
h. IE equipped, REMOVE flinger (157).
i. LOOSEN setscrews (S-13) securing collar (S-12) to shaft j sleeve.

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j. REMOVE mechanical seal assembly (429) as a single unit.

1 i k. REMOVE setscrews securing shaft sleeve nut (127) to shaft.

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REMOVE shaft sleeve nut (127). l 3  !

m. REMOVE shaft sleeve O-ring (456).

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n. REMOVE shaft sleeve (8). 1 4.1.11 DISASSEMBLE radial-end components as follows:

l e. REMOVE pump coupling hub as follows:

I 1) MOUNT coupling puller onto pump coupling hub.

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j NOTE i

$ The coupling hub has an interference fit of approximately 0.001 to 0.003 j inch. Coupling hub remcval may require the application of heat.

k 2) TIGHTEN coupling puller until coupling hub offers

,. moderate resistance.

MP 720.11 Level of Use STOP THINK ACT REVIEW Rev.4 General 14 of 58

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) STOP WARNING STOP

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l To prevent injury to personnel, all combustible materials, flammable l liquids, compressed gasses, and ignition sources must be used in l accordance with WC 7," Fire Protection Program."

C A UTIO N To prevent damage to coupling hub during removal, heat must be applied evenly to coupling hub

3) Using a torch with a flame-spreading nozzle, crenly HEAT pump coupling hub and TIGHTEN coupling puller until coupling hub slides off shaft.
4) REMOVE coupling hub key (12).

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5) REMOVE coupling cover and seal.

b.

O. REMOVE fasteners securing radial bearing end cover (160A) to radial bearing housing (159).

c. REMOVE radial bearing end cover (160A).
d. REMOVE radial bearing end cover seal ring or bearing isolator (308A) as applicable.
e. REMOVE radial bearing end cover gasket (262).
f. Using bearing puller, REMOVE radial bearing housing (159).
g. REMOVE radial bearing (205),
h. REMOVE radial bearing housing seal ring or bearing isolator (308B) as applicable.

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Level of USe STOP THINK ACT REVIEW Rev.4 General 15 of 58

l l (] NOTE Pumps equipped with a bearing isolator have no fl!nger.

i. IE equipped, REMOVE flinger (157).

I j. LOOSEN setscrews (S-13) securing collar (S-12) to shaft sleeve.

k. REMOVE mechanical seal assembly (429) as a single unit.
1. REMOVE setscrews securing shaft sleeve nut (127) to shaft.
m. REMOVE shaft sleeve nut (127).
n. REMOVE shaft sleeve O-ring (456).
o. REMOVE shaft sleeve (8).

4.1.12 REMOVE casing wear rings (6).

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.O 4 Level of Use STOP THINK ACT REVIEW Rev. 4 General 16 of 58

4.1.13 REMOVE impeller as follows

NOTE When measuring the as-found dimension between inboard end of shaft and face ofimpeller hub, an accuracy of at least /32 1 nch i is nece!..,ary.

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a. Refer To Figure - 1, and, using a machinist's scale, MEASURE as-found dimension between inboard end of shaft and face ofimpeller hub.

Figure - 1. As-Found Impeller Position d

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b. RECORD measured dimension onto Attachment 5.
c. MATCH MARK impeller with respect to direction of rotation.
d. REMOVE impeller setscrews.

NOTE A small amount of heat may be required to remove the impeller.

e. IE necessary, using a thermocouple thermometer and heating torch wi+. cosebud, HEAT impeller hub to 150 to 350 F, and REMOVJ impeller from shaft.

O Level of Use STOP THINK ACT REVIEW Rev. 4 General 17 of 58

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! f. REMOVE impeller key (11).

NOTE i

Lower casing removal is unlikely. Pum p maintenance is normally performed with the lower casing installed.

1 4.1.14 IE lower casing removal is necessary, PERFORM the following: j a '

a. DISCONNECT suction and discharge piping.

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b. REMOVE fasteners securing lower casing to baseplate.

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c. REMOVE lower casing dowels.

i NOTE 4

Lower casing weighs approximately 315 lbs.

d. RIG lower casing.

l e. Carefully LIFT lower casing and LOWER onto cribbing.

f. REMOVE suction and discharge piping gaskets.
g. COVER suction and discharge pipe openings.

Level of USO STOP~ THINK ACT REVIEW' R 4 Genera 8 of 58

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4.2 Pump Cleaning and Inspection

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C AUTIO N All chemical consumables to be used in or on power plant components l must be controlled in accordance with CC 1, " Control of Chemical Consumable Products," and a Restricted Use Permit must be issued when necessary.

4.2.1 Using an approved cleaning solvent, CLEAN all components.

4.2.2 Using a fine-grit abrasive or Scotch-Brite pad, REMOVE the following from all mating flanges:

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- Dirt

- Paint

  • Loose scale
  • Corrosion
  • Burrs

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Raised surfaces NOTE Structural damage and defects include breakage, cracks, deformation, distortion, corrosion, pitting, scoring, scratches, erosion, abrasion, galling, and indications of misalignment.

4.2.3 Visually INSPECT all components for wear, structural defects, and damage.

4.2.4 IE inspection results are not satisfactory, Refer To Section 4.3, and REPAIR or REPLACE applicable component (s).

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Level of Use STOP THINK ACT REVIEW Rev. 4 Genera gf58

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4.2.5 REQUEST dual verification, and, with V-blocks positioned

( beneath bearing locations, INSPECT total indicated runout
(TIR) at the following shaft locations

. -Thrust bearing

. Thrust-end shaft sleeve

  • Impeller i

. Radial-end shaft sleeve

  • Radial bearing I
  • Coupling hub 4.2.6 RECORD the following onto Attachment 5:

- Measured TIR values

  • Calibration due date m

4.2.7 E inspection results are not satisfactory, OR TIR isgreater than 0.002 inch, Refer To Section 4.3, and REPAIR or REPLACE l shaft.

4.2.8 REQUEST dual verification, and MEASURE wear ring clearance at the following locations:

Thrust-end impeller-to-case wear ring l

. Radial-end impeller-to-case wear ring 4.2.9 RECORD the following onto Attachment 5:

  • Measured clearance values
  • M&TE serial numbers Calibration due dates l

4.2.10 E wear ring inspection results are not satisfactory, OR impeller-to-case wear ring clearance is not 0.010 to 0.021 inch, Refer To Section 4.3, and REPLACE impeller wear rings.

. Level of Use L 'STOP THINK ACT ' REVIEW Rev.4 L Genera 20 0f 58

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' /Q V NOTE When installing bearing isolators, the outside diameter must be measured between the stator 0-ring and the radial location chamfer.

4.2.11 E bearing isolators will be installed, PERFORM the following:

a. REQUEST dual verification, and MEASURE interference i fit between bearing isolators and their respective bores at the following locations:

Thrust bearing housing seal bore inside diameter and thrust bearing isolator stator outside diameter l

Radial bearing housing seal bore inside diameter and  !

radial bearing isclator stator outside diameter, impeller l side l  !

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  • Radial bearing end cover seal bore inside diameter and i I

radial bearing isolator stator outside diameter, coupling side I b. RECORD the following onto Attachment 5:

Measured interference fit values

  • Calibration due dates 1
c. E any interference fit is not 0.001 to 0.003 inch, Refer To Section 4.3, and REPAIR or REPLACE the following as l applicable:

l-Radial bearing housing or bearing isolator Thrust bearing housing or bearing isolator Radial bearing end cover or bearing isolator 4.2.12 E all inspection results are satisfactory, Go To Section 4.4 and ASSEMBLE pump.

O Level of Use STOP ' THINK ACT REVIEW R*" 4 General 21 of 58

4.3 Pump Repair V

C A UTIO N This pump falls within the ASME Section XI boundary. Repair or replacement of pressure-retaining components must be evaluated in accordance with WC 3, "ASME Section XI Repair and Replacement Program."

4.3.1 1E applicable, Refer To "ASME Section XI Repair and Replacement Plan," and REPAIR or REPLACE pressure-retaining components as necessary.

4.3.2 IE impeller-to-case wear ring inspection results are not satisfactory, DR clearance is not 0.010 to 0.021 inch, REPLACE impeller wear ring (4) as follows:

NOTE The instructions for replacing the thrust-end and radial-end impeller wear rings are the same, bq

a. REMOVE impeller wear ring (4) as follows:
1) REMOVE wear ring setscrews.
2) CUT or GRIND wear ring from impeller,
b. INSTALL impeller wear ring (4) as follows:
1) Using a small file or fine-grit abrasive, REMOVE any burrs from wear ring seating surface.
2) Using an approved cleaning solvent, CLEAN wear ring seating surface.

t Level of Use STOP THINK ACT REVIEW Rev. 4 G e m al 22 of 58

v Impeller wear ring has an interference fit of 0.002 to 0.007 inch on impeller hub.

3) HEAT impeller wear ring.
4) With larger OD of wear ring facing impeller, INSTALL impeller wear ring onto impeller, and ENSURE wear ring is firmly seated against shoulder.

NOTE I l

Wear ring setscrews cannot be installed into the same holes from which they were removed. If the impeller is not new, the wear ring setscrews l l

holes must be drilled and tapped approximately one half the distance from l the existing holes.

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5) Using a drill with a No. 7 drill bit, DRILL three holes (approximately 120 apart) 1/2-inch deep into mating

/_') joint of impeller hub and wear ring.

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6) Using a /4-inch 1

UNC tap, THREAD three holes drilled in step 4.3.2.b.5).

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7) INSTALL and TIGHTEN impeller wear ring setscrews.
8) STAKE wear ring setscrews.

4.3.3 REQUEST dual verification, and MEASURE wear ring clearance at the following locations:

Thrust-end impeller-to-case wear ring

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Radial-er.d impeller-to-case wear ring 4.3.4 RECORD the following onto Attachment 5:

Measured clearance values M&TE serial numbers

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  • Calibration due dates

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Level of Use STOP THINK ACT REVIEW Rev 4 General 23 of 58

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l 4.3.5 PERFORM applicable action: )

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1E impeller-to-case wear ring clearance is less than 0.010 1 inch, MACHINE impeller wear ring as required to achieve proper clearance.

IE impeller-to-case wear ring clearance is greater than 0.014 inch, REQUEST FLS to provide instructions for further )

1 i maintenance. l l

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. 1 I

4.4 Pump Assembly 4.4.1 IE lower casing was removed, Refer To Attachment 1, and INSTALL lower casing as follows:

l a. REMOVE covers from suction and discharge pipe openings.

b. INSTALL suction and discharge piping gaskets.

NOTE l Pump lew>er casing weighs approximately 315 lbs.

I 1

l

c. RIG lower casing.

l

d. Carefidly LIFT lower casing and LOWER onto baseplate. l l
e. INSTALL lower casing dowels.

l

f. INSTALL and TIGHTEN fasteners securing lower casing to i

baseplate, b g. CONNECT suction and discharge piping.

4.4.2 INSTALL new parting flange gasket as follows:

a. With top surface of upper casing facing downward, ,

POSITION upper casing onto ground or work surface.  !

i C AUTIO N l

l To 1revent damage to gasket, casing mating surfaces must be free of dirt anc foreign material before installing gasket.

i

b. ENSURE gasket and upper casing mating surfaces are thoroughly cleaned. '

l 1

c. POSITION /64-inch gasket material over upper casing mating surface.
d. CUT gas'ket materiallager than size required.

., O

%_.h Level of Use STOP THINK ACT REVIEW ~

Rev. 4 General 25 of 58

1

\

d

- e. CUT holes in gasket to allow for lower casing stud bolts and I dowel pins.

f. APPLY approved gasket adhesive to lower casing mating I surface. I
g. POSITION gasket onto lower casing mating surface.
h. RIG upper casing.  ;
i. LIFT upper casing as straight as possible.
j. With holes in upper casing aligned with stud bolts in lower i casing, LOWER upper casing onto lower casing. I NOTE To ensure even pressure on gasket, at least eight casing bolts should be installed symmetrically around casing. For best results, two casing bolts should be installed at each end of casing and four casing bolts should be installed in middle of casing.
k. Using a diagonal sequence, INSTALL and TIGHT EN eight L casing bolts symmetrically around casing.
1. ALLOW gasket adhesive to cure for at least four hours.
m. WHEN at least four hours has elapsed, REMOVE eight casing bolts.
n. RIG upper casing. ,
o. LIFT upper casing as straight as possible.
p. MOVE upper casing to suitable area. l l

D G

Level of Use STOP THINK ACT REVIEW Rn. 4 General 26 of 58

-- -- - . _ . - . . . _ ~ - -.-

l CAUTION To prevent leakage around wear rings and stuffing box, the gasket must overhang 0.010 inch into the casing at these locations, i

q. Refer To Attachment 3, and, using a razor knife, TRIM casing gasket such that gasket extends into case bottom half  ;

l

' approximately 0.010 inch at the wear ring and stuffing box  !

locations. l 4.4.3 IE impeller was removed from shaft, INSTALL impeller (3) as follows:

l

a. INSTALL impeller key (11) into shaft.
b. POSITION radial-end shaft sleeve (8) onto shaft, and ENSURE shaft sleeve is properly seated over impeller key.
c. Using an approved lubricant, LUBRICATE radial-end shaft sleeve O-ring (456).

I

d. INSTALL radial-end shaft sleeve O-ring onto shaft. '
e. Refer To Attachment 5, and THREAD radial-end shaft sleeve nut (127) onto shaft.
f. ADJUST shaft sleeve nut until the dimension between the inboard end of shaft and impeller side of the shaft sleeve is equal to the dimension measured in step 4.1.13.a.
g. INSTALL, but do not tighten, setscrews securing radial-end shaft sleeve nut to shaft.

NOTE A small amount of heat may be required to install the impeller.

h. IE necessary, using a thermocouple thermometer and heating torch with rosebud, HEATimpeller hub to 150 to 350 E l

i

!O iV i

Level of Use STOP' THINK ACT REVIEW Rev. 4 General 27 of 58

I i _

l NOTE

1. The impeller must be installed such that it rotates counterclockwise i when viewed from the driven (inboard) end.  !
2. The impeller must be installed in the same position it was in prior to i removal. I l i. INSTALL impeller onto shaft such that the impeller rotates counterclockwise when viewed from the driven (inboard) end.

l

j. ENSURE impeller is properly seated over key and firmly seated against shaft sleeve gasket.
k. POSITION thrust-end shaft sleeve (8) onto shaft, and ENSURE shaft sleeve is properly seated over impeller key.
1. Using an approved lubricant, LUBRICATE thrust-end shaft sleeve O-ring (456).
m. INSTALL and TIGHTEN thrust-end shaft sleeve nut (127) l onto shaft, i

j O n. INSTALL, but do not tighten, setscrews securing radial-end

'd shaft sleeve nut to shaft.

4.4.4 INSPECT impeller concentricity as follows: i

a. MOUNT shaft and impeller assembly on V-blocks. I
b. REQUEST dual verification, and, using a dial indicator, INSPECT shaft and impeller assembly for high spots and TIR at the following locations:

a Circumference of thrust-end impeller wear ring Circumference of radial-end impeller wear ring L

l l

C Level of Use STOP THINK ACT REVIEW Rev.4 General 28 of 58

' j 4

NOTE l

' Machining of wear rings may be required if high spots or excessive TIR are I detected. Ib ensure that machining of wear rings does not result in  !

excessive clearances, FLS should be consulted aefore machining.

l l

l c. E high spots are detected _QR TIR is greater than 0.002 inch, i REQUEST FLS to provide instructions for further J maintenance.

d. RECORD the following onto Attachment 5:

)

L As-left TIR values M&TE serial numbers Calibration due dates 4.4.5 REQUEST FLS to determine if impeller and shaft must be balanced.

, 4.4.6 E directed by FLS, REQUEST Condition Based Maintenance l Department to balance impeller and shaft.

4.4.7 MOUNT shaft and impeller assembly on stands.

4.4.8 INSTALL thrust-end components as follows:

a. With larger OD of wear ring facing impeller, POSITION thrust-end case wear ring (6) over impeller hub.
b. POSITION collar (S-12) over shaft sleeve (8).
c. Using an approved lubricant, sparingly LUBRICATE seat p ring (S-2) and bellows (S-4).

L d. Carefully WIPE lapped sealing faces of seat (S-1) and l- washer (S-4) until thoroughly clean.

e. Using an approved lubricant, sparingly LUBRICATE seat l (S-1) and washer (S-4).

j f. ASSEMBLE mechanical seal components.

g. POSITION mechanical seal assembly (429) over shaft sleeve.

Level of USO STOP' THINK ACT ' REVIEW Rev.4 L General 29 of 58 l

i

l l

l r h. INSTALL gland plate O-ring (S-11) onto gland l plate (S-12).

I L i. POSITION gland plate (S-14) onto shaft. I i

l l l l j. E thrust bearing seal ring is being installed, PERFORM the l l following:

l

1) INSTALL flinger (157).
2) With lip of seal facing bearing, INSTALL thrust bearing  !

seal ring (308B) into thrust bearing housing (159).

! k. E thnist bearing isolator (308B) is being installed, l PERFORM the following:

CAUTION Caution must be used to prevent cocking or overexerting the bearing isolator in the bearing housing. If the bearing isolator is able to be seated  ;

with hand pressure only, the interference fit is inadequate. The bearing l

isolator must have 0.001 to 0.003 inch interference fit. '

! NOTE t

A 15 degree by 0.015 inch chamfer is provided on the bearing isolator to help prevent overexertion and to ensure the isolator is installed squarely. A l hand arbor press is recommended for seating the bearing isolator into the

, bearing housing. Sli ht shavings of the isolator stator O-ring may be f expected with a goo press fit. Any sheared 0-ring material must be l removed.

l 1) ENSURE the expulsion port is positioned downward (at l the 6 o'ciock position) and INSTALL thrust bearing l- isolator (308B) into thrust bearing housing (159).

2) REMOVE any sheared 0-ring material.
j. 3) Using an approved lubricant, sparingly LUBRICATE i

thrust-end of shaft (10).

+

Level of Use STOP THINK ACT REVIEW Rp. 4 General 99,58

l C A UTIO N To prevent damage to the thrust bearing isolator internal 0-ring, even 3ressure mu-t be applied to the bearing isolator rotor when installing yearing housing onto shaft.

I

1. INSTALL thrust bearing housing (159).
m. INSTALL thrust bearing (204) as follows:
1) E replacement bearing includes bearing shields, l REMOVE bearing shields.

C AUTIO N To prevent dama e to bearing during heating process, bearing temperature must not exceed 50 E

(*)

U 2) HEAT bearing to 200 F, and ENSURE temperature l does not exceed 250 E

3) E using an induction bearing heater, DE-MAGNETIZE bearing.
4) INSTALL bearing onto shaft, and HOLD bearing firmly against shaft shoulder until bearing cools.
n. INSTALL thrust bearing snap ring (397).
o. Using an approved gasket adhesive, INSTALL thrust bearing end cover gasket (262).
p. POSITION thrust bearing end cover (160A) over thrust bearing housing (159).
q. INSTALL and TIGIITEN fasteners securing thrust bearing end cover (160B) to thrust bearing housing (159).

4.4.9 INSTALL radial-end components as follows:

Level of Use STOP THINK ACT REVIEW I<"#' 4 General 31 of 58

a. With larger OD of wear ring facing impeller, POSITION

!l radial-end case wear ring (6) over impeller hub.

b. POSITION collar (S-12) over shaft sleeve (8).

l c. Using an approved lubricant, sparingly LUBRICATE seat l ring (S-2) and bellows (S-4).

! d. Carefully WIPE lapoed sea!ing faces of seat (S-1) and I

washer (S-4) until thoroughly clean.

e. Using an approved lubricant, sparingly LUBRICATE seat (S-1) and washer (S-4),

i f. ASSEMBLE mechanical seal cornponents.

g. POSITION mechanical seal assembly (429) over shaft sleeve.

I h. INSTA'LL gland plate O-ring (S-11) onto gland plate (S-12). l

i. POSITION gland plate (S-14) onto shaft.

O

\/

j. E radial bearing seal ring is being installed, PERFORM the following:
1) INSTALL flinger (157).

, 2) With lip of seal facing hearing, INSTALL radial bearing l

seal ring (308B) into radial bearing housing (159).

k. E radial bearing isolator (308B) is being installed, ,

PERFORM the following: i i

l l

l l

iO Level of Use STOP 'THINK ' -ACT REVIEW Rev. 4 General 3,9,58

.' l 1

C A UTIO N Caution must be used to prevent cocking or overexerting the bearing isolator in the bearing housing. If the bearing isolator is able to be seated with hand pressure only, the interference fit is inadequate. The bearing isolator must have 0.001 to 0.003 inch interference fit. i l

l  ?

l NOTE A 15 degree by 0.015 inch chamfer is provided on the bearing isolator to help prevent overexertion and to ensure the isolator is installed squarely. A hand arbor press is recommended for seating the bearin bearing housing. Slight shavings of the isolator stator ring may0 be g isolator into the expected with a good press fit. Any sheared 0-ring material must be removed.

]

1) ENSURE the expulsion port is positioned downward (at l the 6 o' clock position) and INSTALL radial bearing isolator (308B) into radial bearing housing (159).

l ~. 2) REMOVE any sheared 0-ring material.

3) Using an approved lubricant, sparingly LUBRICATE radial-end of shaft (10).

l C A UTIO N l l even To prevent 3ressure must damage be applied to to the thebearing radialisolator bearing rotorisolator internal 0-ring,ing when install 3 earing housing onto shaft.

L

[

1. INSTALL radial bearing housing (159).
m. INSTALL radial bearing (204) as follows:
1) IE replacement bearing includes bearing shields, REMOVE bearing shields.

MP 720.11 l

Level of Use STOP THINK ACT REVIEW Rev. 4 General 33 of 58

4

\[ C A U TI O N To prevent mustnot damakre exceed 50 E to bearing during heating process, bearing temperature

2) HEAT bearing to 200 F, and ENSURE temperature does not exceed 250 E
3) E using an induction bearing heater, j DE-MAGNETIZE bearing.
4) INSTALL bearing onto shaft, and HOLD bearing firmly against shaft shoulder until bearing cools.
n. Using an approved gasket adhesive, INSTALL radial bearing end cover gasket (262).
o. E radial bearing end cover seal ring is being installed, with l lip of seal facing bearing, INSTALL radial bearing end cover seal ring (308A) into radial bearing end cover (160A).

-} p. E radial bearing end cover isolator (308A) is being installed, PERFORM the following:

i O MP 720.11 Level of Use STOP THINK ACT REVIEW Rev. 4 General 34 or 58

l t

l l

I >~ m b C A U TIO N

! Caution must be used to prevent cocking or overexerting the bearing isolator in the bearing housing. If the bearing isolator is able to be seated with hand pressure only, the interference fit is inadequate. The bearing isolator must have 0.001 to 0.003 inch interference fit.

i l

l NOTE  !

A 15 degree by 0.015 inch chamfer is provided on the bearing isolator to l help prevent overexertion and to ensure the isolator is installed squarely. A hand arbor press is recommended for seating the bearing isolator into the l bearing housing. Slight shavings of the isolator stator 0-ring may be expected with a good press fit. Any sheared 0-ring material must be removed.

l 1) ENSURE the expulsion port is positioned downward (at l the 6 o' clock position) and INSTALL radial bearing isolator (308A) into radial bearing end cover (159).

2) REMOVE any sheared 0-ring material.
3) Using an approved lubricant, sparingly LUBRICATE radial-end of shaft (10). I l I l

C AUTIO N even i

To prevent 1ressure mustdamage be appliedtoto the radial isolator the bearing bearing isolator rotor internal 0-ring,ing when install j 3 earing housing onto shaft. i

q. POSITION radial bearing end cover (160A) over radial
bearing housing.

l l

r. INSTALL and TIGIITEN fasteners securing radial bearing end cover (160A) to radial bearing housing (159).

j s. INSTALL pump coupling cover and seal.

l t. INSTALL pump coupling hub as follows:

73

. y/

Level of Use STOP THINK ACT REVIEW Rev. 4 General 35 0f 58

1) INSTALL pump coupling hub key onto shaft.

N STOP W ARNING STOP lb prevent injury to personnel, all combustible materials, flammable liquids, compressed gasses, and ignition sources must be used in accordance with WC 7," Fire Protection Program."

C AUTIO N To prevent damage to coupling hub during installation, heat must be applied evenly to coupling hub.

NOTE

1. Coupling hub has an interference fit of approximately 0.001 to 0.003 inch on shaft. Coupling hub installation may require the application of heat.

Q 2. The coupling hub must be installed flush with the end of the shaft.

b

2) Evenly HEAT pump coupling hub to 250 to 300 E l 3) INSTALL pump coupling hub onto shaft, and ENSURE i the following:

Coupling hub is properly seated over Key.

Face of coupling hub is flush with end of shaft.

4.4.10 INSTALL rotating assembly as follows:

NOTE Rotating assembly weighs approximately 105 lbs.

a. IE necessary, RIG rotating assembly.

!O Level of Use STOP THINK' ACT REVIEW 4

General 3i*",758

( .

m

.. b. LIFT rotating assembly and LOWER rotating assembly until approximately one foot above lower casing.

c. ALIGN the following with lower casing:

I.

  • Case wear rings l

j *-

Impeller Bearing housings CAUTION To ensure proper sea!ing of the rotating assembly, the portion of the casing flange gasket that overhangs 0.010 into the lower casing must be turned

upward before installing the rotating assembly.

l

d. Carefidly PULL upward on 0.010 overhang portion of the l casing flange gasket.
e. Slow & LOWER rotating assembly into lower casing, and LO ENSURE the following:

l V l

Rotating assembly is lowered as straight as possible.

l Case wear rings are properly mated with roll pins.

Rotat!ng assembly does not rest on gasket overhang.

4.4.11 INSTALL, but & not tighten, fasteners securing gland plates (S-14) to lower casing.

4.4.12 INSTALL dowels aligning thrust bearing housing (159) to lower casmg.

4.4.13 INSTALL and TIGHTEN fasteners securing thrust bearing housing to lower casing.

4.4.14 INSTALL dowels aligning radial bearing housing (159) to lower casing.

l 4.4.15 INSTALL and TIGHTEN fasteners securing radial bearing housing to lower casing.

O Level of Use ' STOP ' ' THINK ACT REVEW

( Rev.4 General 37 of 58 l-

4.4.16. REQUEST dual verification, and MEASURE as-left shaft end play dimension as follows.

! . a. PUSH shaft towards thrust end of pump as far as possible.

b. POSITION dial indicator against end of shaft.
c. PULL shaft towards radial end of pump, and MEASURE total shaft end play.

. d. RECORD the following onto Attachment 5: 1 i

+

Measured end play value M&TE serial No.

Calibration due date i 4.4.17 IE shaft end play dimension is not 0.008 to 0.010 inch, REQUEST l FLS to provide instructions for further maintenance.  ;

NOTE The position of the impeller can be adjusted by turning the shaft sleeve nuts.

I 4.4.18 IE impeller is not centered in lower casing, CENTER impeller in lower casing.

4.4.19 WIIEN impeller is centered in lower casing, PERFORM the following:

INSTALL and TIGHTEN setscrews securing shaft sleeve nuts to shaft.

INSTALL and TIGHTEN setscrews securing impeller to shaft.

, A t

N, ),

'~

Level of Use sTcP ' THINK IACT REVIEW Rev.4 General 380fs8

i i

l

(] NOTE The instructions for setting the thrust-end mechanical seal assembly are the same as those for setting the radial-end mechanical seal assembly.

I 4.4.20 SET mechanical seal assemblies as follows:

a. 5 l SCRIBE a line on shaft sleeve 2 /16-inch from face of  !

l stuffing box.

b. POSITION inside end of collar (the end facing the impeller) i at line scribed in step 4.4.20.a., and TIGHTEN collar ,

setscrews (S-13).

4.4.21 INSTALL upper casing as follows:

a. RIG upper casing.
b. LIFT upper casing as straight as possible.

C A UTIO N To prevent leakage, the upper and lower casing mating surfaces must be j thoroughly clean and free of burrs, nicks, and raised surfaces.

t

c. ENSURE mating surfaces of upper and lower casing are i thoroughly clean and free of burrs, nicks, and raised surfaces.

CAUTION  :

To prevent damage to rotating assembly and case wear rings, upper caring l must be lowered evenly and carefully onto lower casing. '

l

d. With upper casing aligned with wear rings and studs in lower casing, carefidly LOWER upper casing onto lower casing.
e. REMOVE rigging.
f. ENSURE upper casing is properly seated.

A

. 'V Level of Use STOP THINK ACT' REVIEW Rev.4 General 39 0f 58 ,

l

r t

) g. REMOVE eyebolts from upper casing.

h. INSTALL case dowels.
i. INSTALL, but do not tighten, casing bolts.
j. TORQUE casing bolts as follows:
1) Refer To Attachment 4, and, using the tightening sequence shown, TORQUE casing bolts to initial torque of 40 ftalbs (38 to 42 ftalbs).
2) Using the tightening sequence shown, TORQUE casing bolts to a secondary torque of 80 ftelbs (76 to 84 ftalbs).
3) REQUEST dual verification, and, using the tightening sequence shown, TORQUE casing bolts to a final torque of 120 ftelbs (114 to 126 ftelbs).
4) RECORD the following onto Attachment 5:

Measured final torque value M&TE serial numbers Calibration due dates 4.4.22 INSTALL, but do not tighten, fasteners securing gland plates (S-14) to casing.

4.4.23 Using a strap wrench, ROTATE shaft by hand, and ENSURE shaft turns freely without binding.

4.4.24 E shaft does not turn freely without binding, REQUEST FLS to provide instructions for further maintenance.

4.4.25 E motor was moved in order to gain access to pump components, MOVE motor as follows:

O Level of Use STOP' 'THINK

  • ACT REVIEW General Rev 4 49 ,58

p

...,---.-.:..~.-..--......~.......~----.-.-.-

Hl: .

i) -

p .,

LO ,

=

Motor weighs approximately 450 lbs.

l

l. ,a. RIO motor as necessary to permit motor to be repositioned l L on foundation.
b. LIFT motor,
c. REMOVE motor support blocks from beneath motor.
d. E necessary, POSITION motor shims beneath mounting feet.
c. POSITION motor in as-found location.

l f. INSTALL and TIGHTEN motor hold-down fasteners.

g. CONNECT motor leadwires.
h. RECORD landed leads onto WC 10 (Att), " Lifted Lead and Jumper Device Data Sheet."
i. CONNECT any conduit that was disconnected during j disassembly.

I

j. BUMP motor and ENSURE proper direction of rotation.

4.4.26 ALIGN and COUPLE pump and motor as follows:

( a. SET motor rotating assembly at center of its end play, and

! MAINTAIN rotating assembly in that position.

b. REQUEST dual verification, and MEASURE gap between face of motor coupling hub and face of pump coupling hub.
c. E motor and pump coupling hub separation dimension is not 1

between /16 and 3/16i nch, MOVE motor as necessary.

d. RELEASE motor rotating assembly from center of its end play position.

t

e. RECORD as-left pump and motor coupling hub separation dimension onto Attachment 5.

i l eVel of Use STOP THINK ACT REVIEW Rw. 4 General 41 of 58

. l L f. REO EST dual verification, Refer To C MP 710A, i

" Horizontal Shaft Alignment," and ALIGN pump and motor l to the following tolerances:  !

Angular (face-to-face) alignment no greater than 0.002 - l inch TIR ,

i Parallel (rim-to-rim) alignment no greater than 0.002 inch TIR '

g. RECORD the following onto Attachment 5.  !

L .

!

  • As-left alignment values
  • - M&TE serial numbers
  • Calibration due dates I h. ALIGN match marks for the following components:  !
i. INSTALL coupling cover seals.

l j. INSTALL coupling gasket.

k. INSTALL grir!.
1. Refer to MP 791.0 (Att), " Fuel Pool Cooling (310)," and using coupling grease, LUBRICATE spaces between and around grid.

I j- m. WIPE off excess grease flush with grid.

n. INSTALL and TIGHTEN fasteners securing coupling cover halves.

l, 4.4.27 CONNECT the following:

Upper casing vent piping i

  • ' Seal water piping Level of USO STOP THINK' ACT REVIEW Rev.4 General -

42orss

4.4.28 Using an approved thread sealant, INSTALL bearing oilers.

p.

V

l. NOTE
Maximum bearing housing oil level is 1/2 way up the bottom most ball of

, the bearing, and should be clearly marked on the outside of the bearing

housing. Minimum oil level is 1 /8 inch below the maximum oillevel mark. ,

If the housing is not marked, the proper dimension to the maximum oil <

level location is approximately 13/16 -inch (30mm) down from the shaft centerline.

i I 4.4.29 Refer To Figure - 2, and using a level and ruler, MEASURE the same distance (v) down from the level, and SET the oiler and bearing housing oil level to the same height.

i.

2 Bearing Figure - 2. Bearing Oiler Level Adjustment Level J

Housing

,/

3 8 "

1 /16" ,

i (30 mm)

O v ,  ;

1 1

/8",

i I

\ Maximum  ;

Oil Level N Minimum \

Oil Level Bearing O

Level of Use STOP THINK ACT REVIEW Rev.4 General 43 of 58

l t

NOTE

[]

The oillevel will reside at the top of the oiler level adjustment arms.

Maximum bearing housing oillevelis /2 1 way up the bottom most ball of l the bearing. Minimum oil levelis /8 1 nch i below the maximum oil level.  !

4.4.30 ADJUST bearing oiler level adjustment arms to obtain maximum l oil level. l 4.4.31 Refer To Attachment 1 and MP 791.0 (Att)," Fuel Pool Cooling (310)," and FILL thrust and radial bearing housing assemblies as necessary to maintain oil level at the level shown.

4.4.32 Evenly TIGilTEN fasteners securing gland plates (S-14) to casing.

4.4.33 INSTALL coupling guard.

4.4.34 NOTIFY Operations Department that pump maintenance is complete.

4.5 Operational Checkout 4.5.1 WIiEN system conditions permit, REQUEST Operations Department to run, fill, and vent pump.

4.5.2 INSPECT all joints and seals for leakage.

4.5.3 IE leakage is detected, REQUEST FLS to provide instructions for further maintenance.

l i

4 i

l lO Level of USO STOP THINK ACT REVIEW Rev. 4 General 44 of 58

4 1 ..

s ,

i . I p 5. REVIEW AND SIGN-OFF I

5.1 The review and sign-off of Attachment 5 and the AWO satisfy the review l and sign-off of this procedure.

6. REFERENCES 6.1- NNECo Accident Prevention Manual  :

I

6.2 Drawings l
j. 6.2.1 NUSCo Drawing 25202-26007, Sheet 2, " Piping and i

Instrumentation Diagram, Fuel Pool Cooling System" i

6.2.2 NUSCo Drawing 25202-29019, Sheet 3, " Fuel Pool Cooling l 3 Pump" i

6.2.3 John Crane Packing Co. Drawing F-SP-11183," John Crane

Type-12 /2 1 D. Bellows Shaft Seal Ingersoll Rand Co." Rev. F

! i

( 6.3 Vendor Manuals  !

6.3.1 Ingersoll-Rand Company, Form No. 7978-F " Instructions for

.- Installation--Operation and Maintenance of 'S' Line General l Service Pumps" 25202-365-004A j i

6.3.2 Falk Corporation," Instructions for Installation and l Maintenance--Sizes 20 Thru 140" 6.4 Administrative Procedures 6.4.1 CC 1, " Control of Chemical Consumable Products" 6.4.2 WC 3, "ASME Section XI Repair and Replacement Program" 6.4.3 WC 7," Fire Protection Program 6.4.4 WC 8," Control and Calibration of Measuring and Test Equipment" 6.4.5 WC 10," Jumper, Lifted Lead and Bypass Control" 6.5- Maintenance Procedures 6.5.1 C MP 710A," Horizontal Shaft Alignment" O Level of Use "STOP THINK 'ACT' REVIEW Rev.4 General 45 of 58

l

. l l *  ;

1 1

6.5.2 MP 791.0," Plant Component Lubrication" l

( q\'j l )

6.6 Other Documents 6.6.1 Millstone Unit 1 Maintenance Department Main Purchase Order

! (MPO) File #890 I

6.6.2 2/8/96 telcon record between Ingersoll-Dresser Pump Co. Tech I rep. Manish Patel and NU Procedure Writer Tim McNerney l 1

6.6.3 Replacement item evaluation form RIE-95-0054," Coupling I Type T20 Steel Flex" )

1 6.6.4 11/18/96 Memo No. CBM-96-309 from D.W. Leubner of CBM )

to P.J. O'Neill of Unit 1 Tech Support regarding " Millstone Unit 1 l (MP1) Spent Fuel Cooling Pump Coupling Alignment" 6.6.5 Engineering Evaluation M1-EV-960029," Spent Fuel Pool l Cooling Pump Alignment," dated 11/18/96  !

6.6.6 1/15/97 Memo No. CBM-97-014 from D. W. Leubner of CBM 1 to Tim McNerney Unit 1 Maintenance regarding procedure change recommendations of" Overhaul of Fuel Pool Cooling ,

(~}

V Pumps" maintenance procedure '

l 6.6.7 1/23/97 Memo No. CBM-97-028 from D. W. Leubner of CBM to Tim McNerney Unit 1 Maintenance regarding correction of procedure change recommendations to " Overhaul of Fuel Pool Cooling Pumps" maintenance procedure 6.6.8 Replacement item evaluation form PSE-MP1-E-95-918,

" Fuel Pool Cooling Pump Bearing Seals" dated 2/24/95 6.6.9 Minor Modification MMOD M1-97555," Fuel Fool Cooling Pump M4-11B Seal Replacement" 6.6.10 Action Request A/R 97004498," Revise MP 720.11 for the Spent Fuel Cooling Pumps for installing the bearing isolators and adjustment of bearing housing constant level oiler"

7.

SUMMARY

OF CHANGES l

7.1 Revision 4 incorporates interim changes 1 and 2. Change 1 removed lubricant types and quantities. Change 2 eliminated the requirement to set motor coupling lower than pump coupling during motor-to-pump n alignment.

0 Level of Use STOP THINK ACT REVIEW e m al 0f58

9 I

. l 7.2 This procedure was modified by NR 97004498 as follows:

(3 i

  • Bearing isclator installation and removal instructions were added. ,.

i The cross-section and exploded view drawings of the pump have i been modified, and a new detail showing the bearing isolator

~

assembly was added. >

l The Inspection Data Sheet was modified to add bearing isolator )

interference fit measurements.

Instructions were added to adjust bearing constant level oilers.

i i

l l

O i

Level of Use STOP THINK 'ACT REVIEW Rev. 4 Genera 47 of 58

n n. A .

V Atta kent 1 l 'd . .

Pump cross-Section View (Sheet 1 of 4) 308B 205 (SEE NOTE 2) U I

429 308A 16tiH 397 159 ' 4 157 (SEE DETAIL A) (SEE NOTE 2)

(SEE NOTE 3) I

/

t 204 262 456 5~5 6 11 160A 127 @? 10

[As

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1 J \ 4 OILER (TYPICAL) -

(SEE NOTE 1) N q  ;

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s NOTES

1. OILER SIIOWN ROTATED 90' FOR CLARITY. D
2. IF USING BEARING ISOLATOR, SEE DETAIL B.

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3. FLINGER IS ONLY INSTALLED WHEN SEAL /

RING IS USED. ggg gy g 72010_a1 MP 720.11 Level of Use Rev. 4 STOP THINK ACT REVIEW General 48 or58

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Pump Cross-Section View-(Sheet 2 of 4) l S-9 S-8 S-3 S - 14

! S - 12 S - 13 S-6 S-7 .

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, DETAIL A: MECHANICAL SEAL ASSEMllLY .

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MP 720.11  :'

Level of Use gey 4 STOP THINK ACT REVIEW General 49 of 58 .

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Cl Attabdnt l' l 'v/ , ,

Putnp Cross-Section View (Sheet 3 of 4)

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RADIAL LOCATION CHAMFER STATOR 4 .

ROTOR l

INTERNAL O-RING .

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$//~ EXPULSION PORT

. STATOR O-RING .

. DETAIL B: BEARING ISOLATOR ASSEMBLY .

L_. . . . . . . .............__J MP 720.11 Level of Use 72011 a3 Rev* 4 STOP THINK ACT REVIEW eneral 50 of 58

Attai Snt 1 l , ,

Pump Cross-Section View (Sheet 4 of 4)

ITEM # DESCRIITION ITEM # DESCRilTION 3 IMPELLER S-1 SEAT 4 IMPELLER WEAR RING S-2 SEAT RING 6 CASE WEAR RING S-3 WASilER S SIIAFT SLEEVE S-4 BELLOWS 10 SHAFT S-5 RETAINER ,

11 IMPELLER KEY S-6 SPRING 12 COUPLING KEY S-7 DISC  ;

16 GIAND S-8 DRIVE BAND 127 SIIAFT SLEEVE NUT S-9 SPRING llOLDER 157 FLINGER S -11 GLAND PLATE O-RING 159 BEARING IIOUSING S - 12 COLLAR 160A RADIAL BEARING END COVER S - 13 SETSCREW 160B TIIRUST BEARING END COVER S - 14 GIAND PLATE 170 CASING GASKET 183 CASING 204 TilRUST BEARING 205 RADIAL BEARING 262 END COVER GASKET 308A SEAL RING OR BEARING ISOLATOR 308B SEAL RING OR BEARING ISOLATOR 397 SNAP RING 429 MECIIANICAL SEAL ASSEMBLY 456 0-RING l MP 720.11 Level of Use . . . . .

Rev. 4 STOP THINK' ACT- REVIEW General si or58 9

Attachment 2 l l -J Pump Exploded View l 160A (Sheet 1 of 1)

(SEF TE 3) 159 (SEE SITE 3)

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./\- 8 (SEE NOTE 2) 157

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/ 4 6' NOTES

1. SEE ATTACilMENT I FOR l' ARTS LEGEND

,p- AND MECIIANICAL SEAL DETAILS.

2. FLINGER IS ONLY INSTALLED WilEN SEAL RING

/ 204 IS USED.

397 429

- 3. SEE ATTACllMENT 1 DETAIL B,IF HEARING

/h ISOLATOR IS USED.

U _._._.

MP 720.11 i Level of Use

ggggg 'STOP THINK ACT REVIEW Rev.4 l- 520f58

.- . . . . _ _ -- _. . . - . ~ . = . - _

Attachment 3 J Casing Flange Gasket Fabrication Details (Sheet 1 of 1) v oO SEE NOTE O O SEE NOTE O - -

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! NOTE ,f NOTE 3

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l- SEE O O O s?SE O

NOTE O O O O NOTE ALLOW FOR 0.010" OVERilANG OF GASKET l INTO CASING.

O Level of Use .

MP 720.11 ST P THINK ACT- REVIEW Rev.4 General 53 of 58

Attachment 4 I . Upper Casing Bolt Tightening Sequence

! (Sheet 1 of 1)

I 23 24 19 - -

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!. 15 16 l

l 7

11 0_ _

12-8 i

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14 13 17 18 21 22 O MP 720.11 Level of Use - - .

general STOP THINK ACT' REVIEW Rev.4 54 of 58

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U Attabdnt 5 l U *. ,

Inspection Data Record (Sheet 1 of 4)

AWO NO. LOCALID STEP NO. INSPECTION ACCEI'TANCE INSPECTION PERFORMED VERIFlED CRITERIA RESULTS HY/DATE HY/DATE l 4.1.5 As-Found Coupling Hub Reference Only Separation

! 4.1.13.a. As-Found Dimension Be- Reference Only

! tween Inboard End of Shaft and Face of Impeller IIub

4.2.5 Shaft Runout
TIR s 0.002" i

Thrust Bearing TIR Thrust-End Shaft Sleeve TIR Impeller TIR Radial-End Shaft Sleeve TIR j Radial Bearing TIR 1

Coupling Ilub TIR M&TE Ser. No.

< Cal. Due Date MP 720.11 Level of Use Rev. 4 STOP THINK ACT REVIEW General 55 of 58

. _ . _ _ . _ _ _ _ _ . . _ _ - _ . _ - _ - . _ ___ _ _ _ . _ _ _ _ _ _ _ . _ _ _ - _ _ - _ _ - - _ _ _ _ _ _ ~ . _ _ _ _ _ _ _ _ _ - _ _ _ . _ _ _ _ _ _ _ - _ . _ . _ - _ - - _ -- -a

p kJ n o .

Attab/ent 5 l V. '

Inspection Data Record (Sheet 2 of 4)

STEP NO. INSPECTION ACCEITANCE INSPECTION PERFORMED VERIFIED CRITERIA RESULTS BY/DATE BY/DATE 4.2.8 Thrust-End Impeller-to- 0.010 to 0.014" ___= =

Case Wear Ring Clearance ID - OD CLR

(.New) or 0.010 to 0.021" _ =

4.3.3 Radial-End Impeller-to- (In-Service) ID - OD = CLR Case Wear Ring Clearance M&TE Ser. No.

Cal. Duc Date t M&TE Ser. No.

Cal. Duc Date 4.2.11.a. Thrust Bearing IIousing- 0.001 to 0.003" - =

to-Bearing Isolator OD - ID = INTF Interference Fit  :

Radial Bearing Ilousing-to- 0.001 to 0.003" - =

i Bearing Isolator Interference OD - ID = INTF Fit (Impeller Side)

Radial Bearing End Cover-to- 0.001 to 0.003" - =

Bearing Isolator Interference OD - ID = INTF  ;

Fit (Coupling Side)

M&TE Ser. No.

l Cal. Due Date

Cal. Due Date MP 720.11 Level of Use .

Rev.4 STOP' THINK ACT REVIEW l General 560f58

Atta ent 5 l ' *. ,

Inspection Data Record

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(Sheet 3 of 4) ll l STEP NO. INSPECTION ACCEIT,.NCE CRITERIA INSPECTION PERFORMED VERIFIED i RESULTS BY/DATE BY/DATE 4.4.4.b. As-Left Impeller No IIigh Spots

Concentricity

TIR s 0.002" Circumference of Thrust-End Impeller Wear Ring Circumference of Radial-End Impeller Wear Ring i

M&TE Ser. No.

Cal. Duc Date 4.4.16 As-Left Shaft End Play "

l 0.008 to 0.010" l Dimension I 4.4.26.b. As-Left Coupling IIub 1

/g" Separation (1/!6 to3/16") <<

t With Motor at Center of End Play 4.4.21.j. Upper Casing Torque 120 ft lbs

! (110 to 130 ft lbs) ft lbs i t

M&TE Ser. No.

Cal. Duc Date MP 720.11 Level of Use Rev.4 STOP THINK ' ACT~ REVIEW General 57 of 58

m ,,.

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's.J Attak. int 5 'l  % 4, Inspection Data Record (Sheet 4 of 4)

STEP NO. !NSPECTION ACCEI'fANCE INSPECTION PERFORMED VERIFIED CRITERIA RESULTS BY/ DATE BY/DATE 4.4.26.f. As-Left Motor-to-Pump Alignment:

Angular (Face-To-Face) TIR S 0.002" TIR Parallel (Rim-To-Rim) TIR s 0.002" TIR M&TE Ser. No.

Cal. Duc Date M&TE Ser. No.

Cal. Duc Date COMMENTS JOB SUPERVISOR DATE 5

MP 720.11 Level of Use Rev. 4 STOP THINK ACT REVIEW Qeneral 58 of 58 J

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