|
| |
TM 5-4320-308-13
4-15. TEST/REPLACE/ADJUST INJECTION PUMP (Continued)
3
Connect testing device 604 628 00 (3) to injection pump (4). Make sure side connections (2) are tightly locked.
4
Loosen the pressure gage connection, and crank the engine until trapped air is removed from the system.
5 Tighten pressure gage connections.
CAUTION
The pressure gage can be damaged if the engine is cranked beyond the gage limits. Failure to
heed this caution can damage equipment.
6
Slowly crank engine by hand. As the engine is cranked, read fuel injection pressure on the gage. Injection
pressure
should be 4351 to 5076 psi (300 to 350 bar). Stop cranking engine and observe whether pressure is
maintained. If
pressure drops below 3650 psi (250 bar) within 10 to 15 seconds, then injection pump is not in working
order.
Notify rear intermediate maintenance.
7
Remove testing device 604 628 00 (3).
REMOVAL:
1
Move throttle control hand lever to HIGH position and pull extra fuel button.
CAUTION
Do not scratch or mar mating surfaces of injection pump or mounting surface. The pump may
leak or otherwise malfunction after reassembly.
2
Remove two hexagon nuts (1) and remove injection pump (2).
3
Remove shim(s) (3), plate (4), and tappet (5).
4-28
|
