Table 4-2. Unit Troubleshooting-continued -706880161

TM 5-4210-233-14&P-1

Table 4-2. Unit Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

WATER PUMP & PIPING - Continued

PUMP WILL NOT PRIME.

Step

Check hose connections between suction and priming pump for-air leaks.

Repair hoses/tighten connections as required (see para 4-3 through 4-60).

Step

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

Step

Check actuator linkage.

Adjust actuator linkage (see para 4-34).

Step

Valve dirty or worn.

Replace or repair valve (see para 4-31 through 4-55).

4-32