TM 9-2320-260-34-1
5-18. FUEL PUMP SPRING PACK MAINTENANCE
THIS TASK COVERS:
c. Installation
a. Removal
b. Inspection
INITIAL SETUP
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-260-34P-1
All
TOOLS
EQUIPMENT CONDITION
General mechanic's tool kit
Fuel pump mounted on holding fixture (para. 5-14).
(Appendix B, Item 1)
Spring tester (Appendix B, Item 10)
MATERIALS/PARTS
Retaining ring (Appendix D, Item 339)
Gasket (Appendix D, Item 123)
Seal (Appendix D, Item 411)
NOTE
Spring packs are maintained basically the same for AFC and VS
fuel pumps. This procedure covers the AFC fuel pump.
1. Remove seal (12) from governor adjusting screw (13) and throttle leakage adjusting screw (18).
Discard seal (12).
2. Remove four screws (14), spring pack cover (15), and gasket (16) from fuel pump (1). Discard
gasket (16).
3. Remove retaining ring (11), spring retainer (10), shim(s) (9), spring (8), spring guide (5), washer (4),
spring (3), and plunger (2) from spring pack barrel (17). Discard retaining ring (11).
4. Remove adjusting screw (7) and spring(6) from spring guide (5).
b. Inspection
1. For general inspection procedures, refer to para. 2-9.
2. Inspect spring pack cover (15) for cracks, breaks, and stripped threads. Replace spring pack
cover (15) if cracked, broken, or threads are stripped.
3. Using spring tester, inspect tension of spring (8). Replace spring (8) if tension is not within
0.69-0.85 lb (0.31-0.39 kg) when compressed 1.0 in. (25.4 mm).
