TM 3-4230-237-10
0014 00
TROUBLESHOOTING PROCEDURES - Continued
Table 1. Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
PUMP UNIT - Continued
5. PUMP INOPERATIVE (FAILS TO OPERATE)- Continued.
Step 5. Check to see if suction hose is plugged with dirt.
Clean suction hose.
Step 6. If foot valve is used, check to see if it is clogged.
Clean foot valve.
Step 7. Check pump suction. Open VALVE NO. 4 PRIME and remove suction hose from inlet piping.
Operate pump and hold the palm of your hand against the suction inlet. If there is no pull against
the palm of your hand, the pump is bad.
Notify Unit Maintenance.
6. PUMP VIBRATES EXCESSIVELY.
Step 1. Visually inspect to determine if pump mounting is loose.
Shut down system. Tighten mounting nuts and adjust belts (WP 0023 00).
PUMP MOUNTING
0014 00-4
