38DJA51405_01_A01.pdf

Ship/HULL NO. Ship/HULL NAME JoN. ICN: Rev: Key Op:

LHA-7 USS TRIPOLI 380JA51405 01 AOl

TITLE: No.5 A/C Chilled Water Pump Motor; remove and install

Rev-1(FO)- No.5 A/C Chilled Water Pump Motor; rewind

JOB SPECIFICATION

Anticipated Award Date: Production Completion Date: PREPARING ACTIVITY:

SASEBOPOP Start Date: POP End Date:

PREPARED BY:

J.SAKURAI

CODE

E_SJ

DATE

3/26/2026

APPROVED BY: c

S.MURAKAMI LVV '

CODE

S225

CONCURRED BY: A A_-..

A.OKA

CODE

S233

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

DESCRIPTION:

JSN(S): EAO5-1343 CASREP# 26031, C-2 DTG: 150359ZFEB26

S/F CONTACT: PALANCA MM2 / THOMAS MMC CWP # CCNS #

D. PERKINS

ar

Approved by S300/S900 Date: AVL: 6M-

LWC:

Work Completed

S/Force: Rate: Date:

Ship Supt: Date: SRF CONTROL NO.:_________________________

WORK CERTIFICATION SIGNATURES

COMPLETION OF WORK REVIEW: BADGE NO.: SHOP/CODE: PRONE: DATE:

A

Sakura.Yamaguchi.ja Typewritten Text 8/17/2026

Sakura.Yamaguchi.ja Typewritten Text 10/30/2026

Sakura.Yamaguchi.ja Typewritten Text 11/30/2026

Sakura.Yamaguchi.ja Typewritten Text 7/24/2026

Sakura.Yamaguchi.ja Typewritten Text 1301390378

Ship/HULL NO. ShipIHULL NAME ICN: Rev: KeyOp:

LHA -7 USS TRIPOLI JON. 38DJA51405 01 AOl

TITLE: No.5 AIC Chilled Water Pump Motor; remove and install

Rev-1(FO)-- No.5 A/C Chilled Water Pump Motor; rewind

1. SCOPE:

1.1 Title: No.5 A/C Chilled Water Pump Motor; remove and install Rev-l(FO) No.5 A/C Chilled Water Pump Motor; rewind

1.2 Location of Work:

1.2.1 Ship to Shop

1.3 Identification:

1.3.1 Quantity (One HA), Electric Motor for No.5 Air Conditioning (A/C) Chilled Water Pump Located in Auxiliary Machinery Room No.2 (4- 121-0-E), MFR Hansome Energy Systems, MFR DWG A-507-331, Frame 507, Speed 3600 RPM, Horsepower 200 HP, ½mps 220 A, Volts 440 VAC, Frequency 60 HZ, Phase 3, INS CLASS F (Sealed Insulation System), Duty Continuous, Weight 2750 LBS, APL 17A150038

2. REFERENCES:

2.1 Standard Items (FY26)

2.2 56226-1R-MMA-010 Rev 2, Pump, Air Conditioning Chilled Water Centrifugal, Model 8 X 8 X l3NC2, Part 998 -64GK-A-001

2.3 MFR DWG A-507-331 Rev 2, A.C. Motor

3. REQUIREMENTS:

3.1 Pick up the electric motor listed in 1.3.1 from designated location via SHIPSUPT.

3.2 Accomplish the requirements of 009-033 of 2.1 for the electric motor listed in 1.3.1, using 2.2, 2.3, and ENCLOSURE (A) for guidance.

3.2.1 Accomplish the requirements of 009-032 of 2.1 for cleaning and preservation of motor housing, fan, interior and exterior of each end bell and foundation.

3.2.2 Accomplish the requirements of 009-015 of 2.1 for balancing of each rotating assembly.

3.2.3 Deliver the electric motor to SRF Production Shop S51 via SHIPSUPT for core loss testing and pick them up after testing.

3.2.3.1 Submit one legible copy of a core measurement data of ENCLOSURE (B) to SRF Production Shop S51.

3.2.4 After completion of the Core Loss Test, pick it up.

Ship/HULL NO. Ship/HULL NAME ICN: Rev: Key Op:

LHA-7 USS TRIPOLI JON. 38DJA51405 01 AOl

TITLE: No.5 A/C Chilled Water Pump Motor; remove and install

Rev-1(FO)- No.5 A/C Chilled Water Pump Motor; rewind

3.2.5 Fabricate and install new SIS information plate out of ORES plate engraving, "Future Rewind With Sealed Insulation" in accordance with Paragraph 300-4.5.7.6-b(4) of NSTM Chapter 300 Rev.11.

3.3 Deliver the electric motor listed in 1.3.1 to the designated location via SHIPSUPT.

4. NOTES:

4.1 Initial Condition - (No.5 AC) During normal operations S/F discovered white smoke emitting from No.5 AC chilled water pump motor and electrically isolated the pump. Upon further investigation S/F determined the motor to be no longer operational. Request outside activity remove motor, disassemble, replace/repair broken/worn parts, rewind, reassemble and reinstall. Remove & reinstall by 551:38DJA51405 -H01. Rewind by FO:38DJA51405-AO1(Ship to Shop).

4.2 SRF Tool Room will issue each gauge and dial indicator when required.

4.3 Removal, installation, and operational test in the 009-033 of 2.1 will be performed by Production Shop under original JON 38DJA51405-HO1.

4.3.1 SRF Production Shop POC is S91OPS (Mr. H.OONO / 252-8242).

4.4 S241 concurred to rewind the electric motor listed in 1.3.1 using a Class F conventional insulation system by official response to ESR LHA7 -0089 on 3/26/2026.

5. GOVERNMENT FURNISHED MATERIAL (GFM):

5.1 Government Furnished Materials.

MATERIAL LIST

ITEM

NO.

PC

NO.

REF M

/ DESCRIPTION STOCK NUMBER I-IAZ DOC NO. QTY PARA

/UNIT NO.

001 11 2.3 M GASKET, P/N: I-IAN912-2 9B 5330 013734680 N 6075D500 1/EA 3.2

002 12 2.3 M GASKET, P/N: F-IAN912-1 9B 5330 011598412 N 6075D501 1/EA 3.2

003 23 2.3 M WASHER,SPRING TENSION,

9B 5310 013697938 N 6075D502 1/EA 3.2

P/N: ESBO12-26

004 46 2.3 M DEFLECTOR,DIRT AND LIQUID,

9B 4320 012995731 N

6075D503

1/EA

3.2

P/N: HAN2392-11

005 47 2.3 M DEFLECTOR,DIRT AND LIQUID,

9B 4320 015979423 N

6075D504

1/EA 3.2

PIN: HAN239-13B

56 2.3 C NUT, PLAIN, ROUND,

P/N: ESBOO9-10

9B 5310 013333808

N

6075D506

1/EA

3.2

Ship/HULL NO. Ship/HULL NAME ICN:

Rev: Key Op:

LHA-7 USS TRIPOLI JON. 38DJA51405 01 AOl

TITLE: No.5 A/C Chilled Water Pump Motor; remove and install

Rev-1(FO)-- No.5 AIC Chilled Water Pump Motor; rewind

S241 official email response to ESR LHA7 -0089.

BLUF: Rewind No. 5 AC Chilled water pump motor using Clas F conventional insulation system.

References:

(a) ESR LHA7 -0089, NO. 5 AC CHILLED WATER PUMP MOTOR; rewind

(b) MFR DWG A-507-331, Rev. 2, A. C. Motor, Hansome Energy Systems Inc.

(c) MIL-STD-2037, Procedure to Obtain Certification for Electric Motor Sealed Insulation Systems

(d) 59086-KC-STM-010/300 Rev 11, Naval Ships' Technical Manual Chapter 300 Electric Plant - General

(e) Ser S240/1236, Conventional Class F and Sealed Insulation System Motor Rewind Conducted by Non-certified NAVSEA Facility

Enclosures: None.

Background:

(1) Reference (a) requested SRF-JRMC Det. Sasebo Design Branch Code S24l to provide technical assistance to rewind No. 5 AC Chilled water pump motor with Class F conventional insulation (non-SIS) . This motor was originally equipped with a Sealed Insulation System (SIS)

(2) Per reference (b), the motor is specified to have SIS insulation. However, SRF-JRMC Det. Sasebo does not possess the certified capability to perform SIS rewinds.

(3) Reference (c), paragraph 4.1, requires that SIS rewinds be performed by a NAVSEA-certified facility. Although SRF-JRMC Yokosuka (X5l) is the nearest former certified facility, it cannot support this rewind since the motor's stator weight exceeds the 800 kg limit of its VPI equipment, as noted in reference 2.2 of reference (a)

(4) References (d) and (e), authorize a one-time rewind of an SIS motor with a non-SIS if it is urgent and the time to rewind with SIS will result in a significant impact to ship's schedule. Procuring a new replacement SIS motor for No. 5 AC Chilled water pump will not meet the ship's schedule.

(5) SRF-JRIvIC Det. Sasebo has verified that there is no existing information plate or maintenance history indicating this motor was previously rewound with a non-SIS system.

Designer's Comments:

(1) Rewind the No. 5 AC Chilled water pump motor using a Class F conventional insulation system.

(2) Fabricate and install a new information plate on the motor enclosure per reference (d), paragraph 300-4.5.7.6.b. (4). The plate shall be made of corrosion-resistant steel and must state: "Future Rewind With Sealed Insulation."

ENCLOSURE (A) 1/2

LHA-7 USS TRIPOLI JON. 38DJA51405 01 AOl

TITLE: No.5 A/C Chilled Water Pump Motor; remove and install

Rev-1(FO)-- No.5 A/C Chilled Water Pump Motor; rewind

(3) Submit satisfactory shop no-load test data to Design Branch Code S241 to support submission of an information-only Liaison Action Request (LAR) required by paragraph 3.b. (2) of reference (e)

(4) Per references (d) and (e), this conventional rewind is authorized only as an emergent repair and subsequent rewind of this motor must be performed using SIS. A conventional rewind will not be authorized for next repair without formal DFS approval.

(5) For future planning, Design Branch Code S241 recommends two primary options for the next repair cycle:

a. Procure a new replacement SIS motor to coincide with the original insulation design, reference (b)

b. Send the existing motor to a NAVSEA-certified facility with the capability to perform an SIS rewind on a motor of this size.

(6) This concludes the design action for ESR LHA7 -0089.

ENCLOSURE 2/2

LHA-7 USS TRIPOLI JON. 380JA51405 01 AOl

TITLE: No.5 A/C Chilled Water Pump Motor; remove and install

Rev-1(FO)- No.5 A/C Chilled Water Pump Motor; rewind

STATOR CORE LOSS TEST

DATE_____________

JOB No.

Customer (Ship/Hull Name)____________________________________________ Description (Motor Name)_____________________________________________________

Motor Name Plate Data HP (KW)______________ RPM____________ Manufacturer Type No.

Model No._____ Style No.______________________________ Form No.______ Serial No.______________________________ VAC____________ AMP__________ Phase_______ Duty Cycle_______________________________ Frame_________ Enclosure________________________________

CORE ll- (-1 /J'LC1fI) © Core Length___________________________________ © Inner Core Diameter__________________________ © Back Iron Depth_____________________________ ® Slot Depth____________________________________ ® Number of Slot____________________________ © Tooth Width____________________________________

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ENCLOSURE 1/1

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