TM 9-2330-275-14&P
4-77 or 4-80).
(para 4-86).
Table 4-1. Unit Troubleshooting Chart (con’t).
HYDRAULIC SYSTEM (con’t).
7. PUMP WILL NOT SUPPLY OR MAINTAIN PRESSURE
(con’t).
Continued from step D
E. Adjust hydraulic pump output pressure (para
NOTE
Pump does not have to be
removed from dolly set in
order to remove piston.
F. Disassemble and remove piston assembly from
pump. Inspect spring, piston, preformed pack-
ing, and sleeve for excessive wear (para 4-76,
4-79, or 4-82).
IS PISTON ASSEMBLY WORN?
Replace piston assembly
(para 4-76,4-79, or 4-82).
G. Remove hydraulic pump from dolly (para 4-75
or 4-78). Disassemble and clean pump valve
and overload valve (para 4-76, 4-79, or 4-82).
Install pump (para 4-75,4-78, or 4-81 ).
DOES PUMP SUPPLY PRESSURE NOW?
Replace hydraulic pump
Problem solved.
(para 4-75,4-78, or 4-81).
Continue mission.
END OF TASK
4-25
