38DJA51605_01_A01 1.pdf

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REV-1(FO) Motor for No. One Refrigeration Plant Compressor; repair
Solicitation number
N6264926Q0473
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About this file

This is a Job Specification document for repair work on the No. One Refrigeration Plant Compressor motor aboard the USS TRIPOLI (LHA-7), a naval vessel. The work is being performed at Sasebo and involves repair of a 50 horsepower General Electric electric motor (Model 225B7033, MFR ID 5K326NS283H) rated at 62.5 amps, 440 VAC, 1800 RPM, 60 Hz, 3-phase continuous duty with Class B insulation.

The scope of work includes inspecting the controller, cables, and mounting hardware for damage and deterioration; verifying correct overload settings based on motor nameplate specifications; accomplishing standard maintenance requirements including cleaning and preservation of motor housing and components; and balancing of rotating assemblies. The work is scheduled with an anticipated award date of July 24, 2026, production completion date of October 30, 2026, and a period of performance from August 17, 2026 to November 30, 2026. Initial condition notes indicate the compressor was overheating during operation with 52 amps observed during operational testing, with suspected system contamination from air and moisture. Government-furnished materials include bearing assemblies and gaskets. Related work on coupling removal, installation, and alignment, as well as operational testing of the complete refrigeration system, will be conducted under separate job order JON 38DJA51605-H01.

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

____LHA -7 USS TRIPOLI JON. 38DJA51 605 01 AOl TITLE: No.One Refrigeration Plant Compressor; repair

Rev-I (FO)-Motor for No.One Refrigeration Plant Compressor; repair

JOB SPECIFICATION

Anticipated Award Date Production Completion Date: PREPARING ACTIVITY:

SASEBOPOP Start Date: POP End Date:

PREPARED BY:

S. NISHINO

CODE

E_Nl

DATE

316/2026

APPROVED BY:

S. MURAKAMI

CODE

S225

CONCURRED BY:

A. OKA

CODE

S233

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

DESCRIPTION:

JSN(S): EAO5-L063 CASREP # 26026. DTG: 060336ZFEB26. C-3

S/F CONTACT: THOMAS MMC I GREEAR CWP # CCNS #

Approved by S3001S900 Date:t6'>V\4i�2 AvI: -6-At

LWC:

Work Completed

S/Force:

Ship Supt:

Rate: Date:

Date: SRF CONTROL NO.:____________________________

WORK CERTIFICATION SIGNATURES

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

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 1301390924

LHA-7 USS TRIPOLI JON. 38DJA51605 01 AOl

TITLE: No.One Refrigeration Plant Compressor; repair

Rev-1(FO)--Motor for No.One Refrigeration Plant Compressor; repair

1. SCOPE:

1.1 Title: No.One Refrigeration Plant Compressor; repair

Rev-1(FO) -Motor for No.One Refrigeration Plant Compressor; repair

1.2 Location of Work:

1.2.1 Fire Pump and REFR MCHRY Room (6-45--0-E)

1.3 Identification:

1.3.1 Quantity (One HA) No.One Refrigeration Condensing Unit located in 1.2.1, APL: 32A060028

1.3.1.1 Quantity (One EA), Electric Motor for 1.3.1

Manufacture - General Electric CO.

MFR DWG NO. - 225B7033

MFR ID - 5K326NS283H

Horsepower - 50 HP Amps - 62.5 A Speed - 1800 RPM Volts - 440 VAC Frequency - 60 HZ Phase 3 Duty - CONTINUOUS

INS CLASS - B

APL - 175506438

2. REFERENCES:

2.1 Standard Items (FY26)

2.2 59516-BX-MMA-010 Rev 5, Ships Stores Refrigeration Plant 5.5 Ton Capacity Operation and Maintenance

2.3 MFR DWG. 225B7033 Rev G, Alternating Current Motor

2.4 321-7564330 Rev C, Power System 60Hz Wiring Deck Plan lB FR 49-FWD

MDL 1

3. REQUIREMENTS:

3.1 Inspect the controller, cables and mounting hardware terminating in electric motor listed in 1.3.1.1 for previous damage and deterioration, using

2.2 through 2.4 for guidance.

3.1.1 Verify correct value of overload setting or size of heater coils based on motor nameplate full load running current.

CV) "REPORT"

'A

LHA-7 USS TRIPOLI JON. 38DJA51605 01 AOl

TITLE: No.One Refrigeration Plant Compressor; repair

Rev-I (FO)-Motor for No.One Refrigeration Plant Compressor; repair

3.1.2 Submit one legible copy of condition report listing results of the requirements of 3.1 and 3.1.1 to the SUPERVISOR.

3.2 Accomplish the requirements of 009-017 of 2.1 for the electric motor listed in 1.3.1.1, using 2.2 through 2.4 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.

4. NOTES:

4.1 Initial Condition - During normal operation watch stander noted NR 1 reefer compressor overheating. Watch stander secured NR 1 reefer, during investigation watch stander noted freeze box temperature was 30 degrees. S/F conducted compressor oil change, investigated electric solenoids, and motor resistance all reading SAT. S/F conducted OPTEST of NR 1 reefer during OPTEST 52 amps were noted for compressor motor, S/F conducted a through visual inspection of refrigerant line on return line to NR 3 unit cooler located in the freeze box. S/F isolated NR 3 unit cooler. S/F believes overheating compressor caused by system contamination of air and moisture into refrigerant system.

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

4.3 Ship's Force will issue Handheld Programmer (HHP) tester when required.

4.4 Removal, installation, and alignment of coupling will be conducted by JON 38DJA51605-H0l.

4.5 Operational test of the No.1 reefer compressor system will be conducted by JON 38DJA51605-HO1.

5. GOVERNNT FURNISHED MATERIAL (GFM):

5.1 GOVERNMENT FURNISHED MATERIALS.

Symbol: M: Mndtcrv. ( rnnnzrr-', MT.¯ Mnr1,zI-,-z T.TTM ('1..

MATERIAL LIST

.ii-ITEM PC REF I DESCRIPTION STOCK HAZ

DOC QTY

REQD

PARA

NO. NO. NO. NUMBER MAT NO. NO.

901 BEARING, BALL, ANNULAR,

9B3110005299144

N

- 2IEA

3.2PIN K55-0077

902 25 2.3 M GASKET, P/N 235A4560AJ2 9B 5330 012227968 N - 1/EA 3.2

File details come from the government source that posted it. Updated .