TM 9-2320-260-34-1
5-24. FUEL PUMP FRONT COVER MAINTENANCE
THIS TASK COVERS:
Installation
a. Removal
c.
b. Inspection
INITIAL SETUP
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-260-34P-1
All
EQUIPMENT CONDITION
TOOLS
Fuel pump mounted to holding fixture (para. 5-14).
General mechanic's tool kit
(Appendix B, Item 1)
Inside micrometer (Appendix B, Item 9)
MATERIALS/PARTS
Lockwasher (Appendix D, Item 233)
Gasket (Appendix D, Item 125)
NOTE
AFC, VS, and MVS type fuel pump front covers are maintained
basically the same. This procedure is for the AFC fuel pump.
1. Remove screw (8), lockwasher (7), washer (6), six screws (1), washers (2), housing (5), and gasket (4)
from front cover (3). Discard gasket (4) and lockwasher (7).
2. Remove weight assist plunger (11), shim(s) (12), and spring (13) from weight carrier (14).
3. Remove weight carrier (14) from front cover (3).
1. Inspect front cover (3) for breaks and cracks. Replace front cover (3) if broken or cracked.
2. Inspect idler (15) and drive (9) gears for chips, breaks, and wear. Replace front cover (3) if damaged.
3. Inspect weight carrier shaft bushing(s) (10) for nicks, burrs, scoring, and wear. Measure inside
diameter of weight carrier shaft bushing(s) (10). Replace front cover (3) if weight carrier shaft
bushing(s) (10) is damaged or inside diameter exceeds 0.504 in. (12.80 mm).
c. Installation
1. Install weight carrier (14) on front cover (3).
2. Install spring (13), shim(s) (12), and weight assist plunger (11) on weight carrier (14).
3. Install new gasket (4) and housing (5) on front cover (3) with washer (6), new lockwasher (7),
screw (8), six washers (2), and screws (1).
