TM 9-2320-272-24-1
3-40. FUEL PRIMER PUMP (M939/A1) REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M939/A1
TM 9-2320-272-10
TM 9-2320-272-24P
TOOLS
General mechanic's tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
l Parking brake set (TM 9-2320-272-10).
l Hood raised and secured (TM 9-2320-272-10).
a. Removal
1.
Open drainvalve (7) on primer pump (8).
2.
Disconnect fuel primer supply line (1) from fuel primer adapter (9).
3.
Loosen plunger retainer locknut (6) from plunger retainer (5).
4.
Loosen and remove plunger (4) and retainer (5) from primer pump (8).
5.
Remove plunger retainer locknut (6) from primer pump (8).
6.
Remove jamnut (3) and primer pump (8) from accelerator bracket (2).
7.
Remove drainvalve (7) and fuel primer adapter (9) from primer pump (8).
b. Installation
1.
Install drainvalve (7) and fuel primer adapter (9) on primer pump (8).
2.
Install primer pump (8) on accelerator bracket (2) with jamnut (3). Tighten jamnut (3) against
accelerator bracket (2).
3.
Install plunger retainer locknut (6) on primer pump (8).
4.
Install plunger (4) and plunger retainer (5) in primer pump (8).
5.
Tighten plunger retainer (5) on pump (8).
6.
Tighten locknut (6) against plunger retainer (5).
7.
Connect fuel primer supply line (1) to fuel primer adapter (9).
FOLLOW-ON TASK: Prime fuel system (para. 3-22 for M939A2; TM 9-2320-272-10 for M939/A1).
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