Replace/Repair Lubricating Oil Pump Group

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Assemble oil pan

TM-55-1905-223-24-1 Main Propulsion Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Remove transfer tube

TM 55-1905-223-24-1

3-23. Replace/Repair Lubricating Oil Pump Group. (FIG. 3-16)

This task covers:

a. Removal

b. Disassembly

c. Repair

d. Assembly

e. Replacement

INITIAL SETUP:

Tools

Equipment Condition

Tool kit, general mechanic's

Engine shutdown and cooled to 120

rail and marine diesel engine,

(500C). TM 55-11905-223-10.

5180-00-629-9783

Oil pan and adapter group removed,

Torque wrench kit P/N 3377216

para. 2-36.

Hydraulic press P/N 2009-13

Mandrel P/N ST-598

Valve spring compression tester

P/N 3375182

Dial indicator,

P/N 5210-00-277-8840

Machinist measuring tool set

5280-00-278-9919

Materials/Parts

Engine lube oil, Item 2, Appendix C

Engine oil pump assembly P/N 3038725

Oil connection gasket P/N 3000632

Gasket adhesive, Item 8, Appendix C

Packing assembly P/N 3028392, 3031544

Compression helical spring P/N 3026926

Plunger P/N 3026927

Solvent, Item 15, Appendix C

Crocus cloth, Item 11, Appendix C

REMOVAL

a. Remove suction tube (46).

(1) Remove loop clamps (45).

(2) Bend tabs of nut and bolt lockplates (43) away from heads of hexagon head capscrews (44).

(3) Remove hexagon head capscrews (44) and nut and bolt lockplates (43).

(4) Remove hexagon head capscrews (47) and nut and bolt lockplates (48).

(5) Remove brackets (40, 49, and 50).

(6) Pull suction tube (46) and packing assembly (42) from oil pump.

Change 1 3-62