Replace/Repair Fuel Tubing, Shutdown Valve and Fuel Pump Group

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REPLACEMENT

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 2-27. Fuel Pump

TM 55-1905-223-24-5

2-33. Replace/Repair Fuel Tubing, Shutdown Valve and Fuel Pump Group.

This task covers: a.

Removal

b. Repair

c. Replacement

INITIAL SETUP:

Tools

Equipment Condition

Tool kit, general mechanic's

Engine shutdown (TM 55-1905-223-10).

rail and marine diesel engine,

Fuel supply closed at the fuel

filter outlet valve.

Combination wrench set,

Electrical power OFF at primary

metric 10mm to 24mm,

breaker to the engine.

5120-01-046-4979

(TM 55-1905-223-10).

Torque wrench kit P/N 3375044

Engine tagged "Out of Service - Do Not

Torque wrench, 5120-01-092-3278

Operate."

Materials/Parts

Check valves P/N 178079 and P/N 3028325

Solenoid valve P/N 3035346

Metering and distributing fuel pump

P/N 3058505

Gasket P/N 154087

Gasket P/N 3053805

REMOVAL

a. Clean the fuel pump and the surrounding area before removing it from the engine.

b. Secure power to battery charger and then disconnect battery cables.

c. Remove nuts (9, FIGURE 2-27) and wires (8) to the fuel shutoff solenoid valve.

d. Remove the linkage (11) by removing bolt (13) and washer (12) from the throttle lever (10).

e. Disconnect the following:

(1) Tachometer cable (1).

(2) Air supply hose (3).

(3) Fuel supply to injectors (4).

(4) Fuel return hose (2).

2-104