TM 10-4320-325-14
TO 34Y5-2-40-1
Table 3-1. Operator Troubleshooting Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5.
ENGINE STOPS RUNNING
Step 1.
Check for insufficient fuel supply.
Fill fuel tank, if necessary.
Step 2.
Check air cleaner restriction indicator.
If a red band appears in air cleaner restriction indicator window, replace air filter (para
6.
PUMP FAILS TO PRIME
Step 1.
Check for low engine speed.
Move engine speed control handle to START to increase engine speed (para 2-6).
Step 2.
Check for an air-locked pump.
Remove dust plug from female quick-disconnect coupling on priming port. Prime pump
by filling volute with water (para 2-5). Install dust plug.
Step 3.
Check for clogged suction hose.
If clogged, clean suction hose.
Step 4.
Check for leaks in pump suction line.
Repair leaks in suction port connections, or in suction line hoses.
7.
LOW DISCHARGE PRESSURE
Step 1.
Check for low engine speed.
Move engine speed control handle to START to increase engine speed (para 2-6).
Step 2.
Check for clogged suction hose.
If clogged, clean suction hose.
Step 3.
Check for leaks in pump suction line.
Repair leaks in suction port connections, or in suction line hoses.
Change 4
3-3
