TM 1-4920-924-13&P
FIELD MAINTENANCE
AVIATION SHOP EQUIPMENT CONTACT MAINTENANCE (AV SECM) SYSTEM
TROUBLESHOOTING
INITIAL SETUP:
Tools and Special Tools
Airpax Dimensions, Inc. Direct Current (DC) to
Alternating Current (AC) power Inverters Owners
Manual for Models: MIL-24/6000H-3PHQ
Personnel Required
Oil-Free Portable Air Compressor Instruction Manual
One
References
TM 9-2320-332-10
NOTE
If troubleshooting procedures are required for the M1079A1 series truck or the shelter, refer to
TM 9-2320-332-10, Operator's Manual for the M1078A1P2 Series 2.5 Ton, 4x4 Light Medium
Tactical Vehicles (LMTV).
If troubleshooting procedures are required for the air compressor, refer to Instruction manual
Oil-Free Portable Air Compressor.
TROUBLESHOOTING PROCEDURE
POWER INVERTER
NOTE
If the steps beow are completed and the inverter still will not operate satisfactorily refer to Airpax
Dimensions, Inc. Direct Current (DC) to Alternating Current (AC) power Inverters Owners
Manual for Models: MIL-24/6000H-3PHQ.
SYMPTOM
Inverter fails to operate.
MALFUNCTION
CORRECTIVE ACTION
STEP 1. Connect a 100 watt light bulb to each of the three 120 VAC phase wires and disconnect
all other output wiring.
STEP 2.
Make sure inverter and main circuit breaker are in the On position.
STEP 3. Observe the fault indicating lights on the front of the inverter.
a. If the Low battery input voltage light is lit; turn inverter to the Off position for 5 seconds, then
On again. if the light again turns on, check wiring, DC source voltage, battery condition and
line fuse.
b. If the Overload light is lit, check output wiring for short circuit. Otherwise, the load is too large
for the power rating of the inverter.
c. If the High temperature light is lit, the inverter must be left to cool to 104 F (40 C). Check to
see that the inverter is not in a closed compartment and that the cooling fans are not blocked.
END OF WORK PACKAGE
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