Table 4-2. Unit Troubleshooting - Continued
TEST OR INSPECTION
WATER PUMP & PIPING - Continued
PUMP WILL NOT PRIME.
Check hose connections between suction and priming pump for-air leaks.
Repair hoses/tighten connections as required (see para 4-3 through 4-60).
Priming pump failed.
Replace or repair priming pump (see para 4-57).
PUMP LEAKS WATER WHILE PUMPING
Check location of leak.
Refer to Direct Support for repair.
VALVES LEAKING WATER/AGENT
Check actuator linkage.
Adjust actuator linkage (see para 4-34).
Valve dirty or worn.
Replace or repair valve (see para 4-31 through 4-55).