TM 9-2320-289-20
3-18.
FUEL DRAINBACK HOSES REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Equipment Condition
General Safety Instructions
Both battery negative cables disconnected.
DO NOT perform this procedure near
(See paragraph 4-38)
fire, flames, or sparks.
Rear battery removed (M1010).
Allow engine to cool before replacing
(See paragraph 4-39)
drainback hoses.
a.
REMOVAL
WARNING
Diesel fuel is flammable. DO NOT perform this procedure near fire,
flames, or sparks. A fire extinguisher must be on hand in work area.
Failure to follow this warning may result
Allow engine to cool before replacing
Failure to follow this warning may result
NOTE
in serious injury or death.
drainback hoses (3 and 5).
in serious burns.
Perform step 1 only if visual inspection shows fuel leaking from either rear
injector nozzle (4).
1.
Remove 2 clamps (2) and caps (1) from 2 rear injector nozzles (4).
2.
Remove 12 clamps (7) and 6 drainback hoses (3).
NOTE
When working on M1010, the right drainback hose (5) in step 3 cannot be
removed unless alternators, alternator brackets, and mounting hardware
are removed. (See paragraph 4-3)
3.
Remove 4 clamps (6) and 2 drainback hoses (5).
b .
INSTALLATION
1.
Install 2 caps (1) and clamps (2) at 2 rear injector nozzles (4) if removed.
2.
Install 6 drainback hoses (3) with 12 clamps (7).
3.
Install 2 drainback hoses (5) with 4 clamps (6).
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