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TM 5-4320-304-14
TM 08922A-14/1
5-8. TEST/REPLACE/ADJUST INJECTION PUMP (Continued)
Death or serious injury could occur if fuel is not handled
carefuIIy. Use in a well-ventilated area away from open
flame, arcing equipment, ignition sources, heaters, or exces-
sive heat. Always store fuel in proper, marked containers.
DO NOT SMOKE.
Death or serious injury could occur if compressed air is
directed against the skin. Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced
to 30 psi (2.06 bar) or less. When working with com-
pressed air, always use chip guards, eye protection, and
other personal protective equipment.
4
Clean all parts with clean diesel fuel and dry with low-pressure compressed air.
5
Inspect mating surface of injection pump for roughness or other damage. Scratches or other damage
may result in pressure leaks. Check for wear at contact areas. Replace injection pump if worn.
NOTE
No resistance should be felt until the pump is within 0.160
inch (4 mm) of the crankcase, then a resistance due to initial
load of plunger spring can be felt.
Do not tighten pump if not seated properly. Damage to pump,
governor lever, or engine could result if improperly installed.
8
Using hand pressure, insert injection pump (7) fully into crankcase (2) and install two hexagon nuts
(8). If the pump does not seat properly, governor sleeve pin of injection pump has not entered
slot (4) in governor lever.
5-15
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