AIR COMPRESSOR DOES NOT RUN.

TM 3-1040-279-12&P

TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 3.

Check vehicle cable assembly.

Disconnect cable assembly from connector 1J3 or 1J4 (No. 1 or No. 2 generator) at control

panel.

Check continuity between pins L and M or cable assembly.

If continuity is not present, vehicle cable assembly is defective. Refer to TM 9-2350-261-

20-1 for equipment mounted on M1059 vehicles or TM 3-1040-280-20&P for equipment

mounted on M1037/M1097 vehicles.

If continuity is present, check control panel wiring (P. 4-127) of an open circuit. Repair

wiring or replace SMOKE TEMP indicator (P. 4-110).

9. AIR COMPRESSOR DOES NOT RUN.

Step 1.

Check output power from control panel.

Disconnect cable assembly from connector 1J2.

Set circuit breaker CB1 and POWER switch to ON.

Check for 28v between sockets B (+) and C (-) and sockets A (+) and C (-) of connector 1 J2.

If 28v is present, set POWER switch to OFF and reconnect cable assembly. Go to next

step.

If 28v is not present, check control panel wiring (P. 4-127) for open or shorted condition.

Step 2.

Check cable assembly.

Disconnect cable assembly from connector 2J1 on air compressor assembly.

Set POWER switch to ON.

Check for 28v between sockets B (+) and C (-) and sockets A (+) and C (-) of cable

assembly.

If 28v is present, set POWER switch to OFF. Go to next step.

If 28v is not present, set POWER switch to OFF. Refer to TM 9-2350-261-20-1 for

equipment mounted on M1059 vehicles or TM 3-1040-280-20&P for equipment mounted

on M1037/M1097 vehicles.

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