Replace/Repair Fuel Pump Coupling . (FIGURE 2-32)

TM 55-1905-223-24-4

2-33. Replace/Repair Fuel Pump Coupling . (FIGURE 2-32)

This task covers:

a. Removal,

b. Repair,

c. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's

Engine shut down and tagged "Out of

rail and marine diesel engines,

Service" (TM 55-1905-223-10).

Fuel drained from engine.

Combination wrench set, metric

Fuel pump removed (para. 2-31).

10mm thru 24mm,

5120-01-046-4979

Materials/Parts

Spur gear P/N 3911331

Gasket P/N.3905685

Warning tags, Item 21, Appendix C

REMOVAL

a. Remove two capscrews (1) from fuel pump brace (2).

b. Remove fuel pump brace (2).

Remove stud (3) and nut (4).

d. Remove spur gear (5) and gasket (6) from pump. Discard gasket.

REPAIR

a. Replace gasket (6).

b. Check the spur gear for cracks and gear tooth wear.

Replace spur gear (5) if cracks are present.

REPLACEMENT

a. Install new gasket (6) and replace spur gear (5).

b. Install stud (3) and nut (4).

2-87