Replace/Repair Fuel Pump Group.

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REPLACEMENT

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

FIGURE 2-27. Fuel Pump External Throttle Components.

TM 55-1905-220-24-1

2-29. Replace/Repair Fuel Pump Group.

This task covers:

a. Removal

b. Repair

c. Replacement

INITIAL SETUP :

Tools

Equipment Condition

Tool kit, general mechanic's rail

Engine shutdown. Power switch

and marine diesel engine

emergency stop to STOP position

and tagged "Out of Service-Do Not

Torque wrench kit P/N 3377216

Operate." TM 55-1905-223-10.

Fuel control shutoff valve manual

Materials/Parts

knob counterclockwise to the OFF

position.

Flex coupling insert P/N 3046200

Cam-actuated fuel pump P/N 3279570-B644

Gasket P/N 3035053

Utility pail, Item 30, Appendix C

Wiping rags, Item 4, Appendix C

Electrical tag, Item 7, Appendix C

REMOVAL

WARNING

Use extreme caution while disconnecting fuel lines. Cans should be used to catch fuel from disconnected lines.

All fuel spills should be wiped up immediately.

a. Remove fuel input and output lines (2 and 1, FIG. 2-26) attached to the cam-actuated fuel pump (3,

b. Tag and disconnect electrical connections.

Remove linkage from throttle lever (2).

d. Remove four hexagon head capscrews (4), lockwashers (5) and flat washers (6) retaining cam-actuated

fuel pump (3) to the engine block (8).

e. Remove cam-actuated fuel pump (3) and gasket (7). Discard gasket.

Remove flexible coupling insert (1).

g. Loosen throttle level capscrew and remove throttle lever (2).

2-97