TM 55-1730-229-12
AG 320A0-OMM-000
TO 35C2-3-473-l
TM 1730-1211
Operator/Crew Troubleshooting (continued)
Table 3-3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
OUTPUT PRESSURE GAUGE INDICATION ALWAYS ZERO.
13.
GAUGE SHUTOFF valve closed.
Open valve l/4 turn.
HYDRAULIC ELECTRICAL POWER ON LAMP DOESN'T COME ON.
14.
CIRCUIT BREAKER on hydraulic electrical panel tripped.
Reset CIRCUIT BREAKER.
TEMPERATURE AND SYSTEM READY INDICATOR LIGHTS STAY OFF.
15.
Cold hydraulic fluid.
Perform procedure of paragraph 2-7.c.
Temperature sensor defective.
Notify supervisor.
OUTPUT PRESSURE INDICATION WILL NOT INCREASE.
16.
PRESSURE RELIEF valve set too low.
Re-adjust PRESSURE RELIEF valve.
Pump or pump controls not working properly.
Notify maintenance supervisor.
PRESSURE RELIEF VALVE DOESN'T TURN.
17.
Valve lock set.
Release lock.
PRESSURE DOES NOT RESPOND TO PRESSURE (INCREASE/DECREASE) SWITCH.
18.
Control circuit or pump defective.
Notify maintenance supervisor.
Check electrical connections.
3-17
