TM 10-6640-238-13
4-12
Table 4-3. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WARNING
Before performing any maintenance actions on electrical equipment, ensure all
electrical power has been turned off. Failure to comply with this warning may
result in serious injury or death.
NOTE
Refer to electrical schematic diagram FO-1 located in the back of the manual
when troubleshooting electrical system.
1.
NO ELECTRICAL POWER TO LABORATORY, GENERATOR OUTPUT SWITCH ON AND POWER
CABLE PROPERLY CONNECTED.
WARNING
Do not come in contact with main power cable connections on generator set with
power applied to Mod Lab A. Failure to comply with this warning may result in
serious injury or death.
Step 1. Position generator set circuit breaker to open position.
Step 2. Disconnect generator and Mod Lab A power cables.
Step 3. Check power cable for open or shorted leads using multimeter.
If open or shorted lead is found, replace power cable.
2.
INDIVIDUAL FLUORESCENT LIGHT BULB FAILS TO ILLUMINATE AFTER STARTER
REPLACEMENT.
Step 1. Replace ballast. See paragraph 4-15.
Step 2. Replace switch. See paragraph 4-22.
Step 3. Replace applicable circuit breaker. See paragraph 4-18.
3.
FORWARD OR REAR EMERGENCY LIGHT FAILS TO ILLUMINATE WHEN POWER FAILURE
OCCURS.
Step 1. Replace ballast in appropriate ballast box. See paragraph 4-16.
Step 2. Replace switch. See paragraph 4-22.
Step 3. Replace applicable circuit breaker. See paragraph 4-18.
4.
NO POWER AVAILABLE IN PETROLEUM LABORATORY, PURGE CYCLE COMPLETED AND
CIRCUIT BREAKER A1CB1 IN ON POSITION.
Reset circuit breaker A1CB1.
If power still not available, replace circuit breaker A1CB1. See paragraph 4-18.
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