TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 269 of 1258
TM 9-2320-280-34
4-4. FUEL INJECTION LINES MAINTENANCE
This task covers:
a. Removal
c. Installation
b. Inspection
d. Bleeding
INITIAL SETUP:
Tools
Equipment Condition
General mechanic's tool kit:
•
Intake manifold removed (para. 3-17).
automotive (Appendix G, Item 1)
•
Fuel injection pump boot removed
(TM 9-2320-280-20).
Special Tool
Crowfoot, 16 mm (Appendix G, Item 135)
General Safety Instructions
Crowfoot, 19 mm (Appendix G, Item 111)
Do not perform this procedure near fire, flames,
or sparks.
Manual References
TM 9-2320-280-10
Maintenance Level
TM 9-2320-280-20
Direct support
TM 9-2815-237-34P
WARNING
Diesel fuel is highly flammable. Do not perform this procedure
near fire, flames, or sparks. Severe injury or death will result.
CAUTION
Cover or plug all hoses, connections, and openings immediately
after disconnection or component removal to prevent
contamination. Remove all plugs prior to connection.
NOTE
The fuel injection pump replacement procedures for pre-1990,
1990 and above 6.2 L and 6.5 L engines, are basically the same.
Refer to engine decal model number on left rocker arm cover
before ordering replacement parts, since replacement parts are not
interchangeable.
a. Removal
NOTE
Have drainage container available to catch fuel.
1.
Loosen two fuel injection line nuts (2) and disconnect fuel injection lines (3) from fuel injection
nozzles (7).
2.
Remove screw-assembled washer (4) and clamp (5) from support bracket (8).
NOTE
Tag fuel injection lines by cylinder number for assembly.
3.
Loosen two fuel injection line nuts (2) and remove fuel injection lines (3) from fuel injection pump (1).
4.
Remove clamp (5) and two grommets (6) from fuel injection lines (3).
b. Inspection
1.
Inspect fuel injection lines (3) for cracks, bends, or damage. Replace if cracked, bent, or damaged.
2.
Inspect grommets (6) for damage. Replace if damaged.
4-4
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