TM 9-2815-237-34
2-32. FUEL INJECTION PUMP REPAIR (Cont’d)
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CAUTION
Do not handle precision ground surface of rotor to avoid
contamination.
Handle all parts carefully with clean hands wet with calibrating
fluid to avoid contamination.
6. Mount governor weight support in vise and rinse rotor (1) in calibrating fluid and install in support.
NOTE
. Delivery valves are available in standard and oversize. If
replacing delivery valve, check for marking “OS” on side of rotor.
If “OS” marking is present, oversize delivery valve must be used.
l Oversize delivery valves have a black marking at the base of
delivery valve.
7. Install delivery valve (2) in rotor (1).
8. Install valve spring (3) and valve stop (4) in rotor (1).
CAUTION
Excessive tightening of stop plug will cause seizure of hydraulic
head and rotor.
9. Using 5/32-in. hex head driver, install stop plug (5) in rotor (1) and tighten to 85-90 lb-in. (10 N•m).
2-108
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