TM 10-4320-315-10
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
PUMP SUCTION AND DISCHARGE GAGES SHOW LOW PRESSURE - (Cont)
Step 4.
Check for proper valve positioning in system operation.
Refer to system manual Notify unit maintenance if low pressure is still indicated.
9.
PUMP DOES NOT PRIME.
Step 1.
Check for cracked pump housing, suction line, or discharge line.
Notify unit maintenance if leaks present.
Step 2.
Check for leaking mechanical seal at pump bearing housing.
Notify unit maintenance if leaks present.
10.
RUNNING AND BRAKE LIGHTS DO NOT WORK.
Step 1.
Check to see if electrical cable is securely fastened to mating receptacle on tow vehicle.
Secure connection.
Step 2.
Check pins on connector for damage and proper alignment.
Align pins on connector Notify unit maintenance if connector damaged.
Step 3.
Remove cover and check lamps.
Replace lamps.
Step 4.
Check cable for cuts or damage and proper connection to light assembly.
If cuts or damage present, notify unit maintenance
11.
HANDBRAKE DOES NOT LOCK TRAILER WHEELS.
Step 1.
Check handbrake tension.
Adjust handbrake tension.
Step 2.
Check for damaged cables.
Notify unit maintenance if cables are damaged.
3-4
