TM 9-2320-260-34-1
5-19. UPPER SPRING PACK MAINTENANCE
THIS TASK COVERS:
a. Removal
d. Assembly
e. Installation
b. Disassembly
c. Inspection
INITIAL SETUP
MATERIALS/PARTS
APPLICABLE MODELS
M816, M819
O-ring (Appendix D, Item 284)
O-ring (Appendix D, Item 286)
TOOLS
Gasket (Appendix D, Item 123)
General mechanic's tool kit
Retaining ring (Appendix D, Item 340)
(Appendix B, Item 1)
REFERENCES (TM)
Inside caliper micrometer (Appendix B, Item 9)
TM 9-2320-260-34P-1
Spring tester (Appendix B, Item 10)
Arbor press (Appendix B, Item 7)
EQUIPMENT CONDITION
Fuel pump mounted on holding fixture (para. 5-14).
1. Remove spring (16) from throttle lever (12) and bracket (2).
2. Remove four screws (14), washers (13), spring pack housing (11), and gasket (15) from fuel pump (1).
Discard gasket (15).
3. Remove high-speed spring (8), shim(s) (9), and spring guide (10) from spring pack housing (11).
4. Remove retaining ring (7), spring seat (6), idle spring (5), and plunger (4) from governor barrel (3).
Discard retaining ring (7).
b. Disassembly
NOTE
Mark throttle lever positions for installation.
1. Loosen two nuts (24) and screws (25) and remove throttle levers (12) and (29) from throttle lever
shaft (23).
2. Remove setscrew (27) from throttle lever stop (28) and throttle lever shaft (23),
3. Remove throttle lever shaft (23) and throttle lever stop (28) from spring pack housing (11).
4. Remove two O-rings (26) from throttle lever shaft (23). Discard O-rings (26).
5. Remove safety wire (18) from two caps (17). Discard safety wire (18).
6. Remove two caps (17), washers (19), nuts (20), washers (21), and setscrews (22) from spring pack
housing (11).
