NO START AIR BLAST.

TM 3-1040-279-12&P

TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 2.

Check air compressor pressure switch S114.

Follow procedures (P. 4-167) for checking pressure switch.

If pressure reading is less than 63 3 psig, replace air compressor (P. 4-151).

If pressure reading is more than 63 3 psig, replace pressure switch (P. 4-151).

11. NO START AIR BLAST.

Check output power from control panel.

Step 1.

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

panel.

Set circuit breaker CB1 and POWER switch to ON.

Hold ENGINE switch to START.

Check for 28v between sockets H (+) and N (-) of connector 1J3 or 1J4.

If 28v is present, set POWER and ENGINE switches to OFF, reconnect cable assembly

and go to next step.

If 28v is not present, set POWER and ENGINE switches to OFF, and check control panel

wiring (P. 4-127) for open or shorted condition.

Check vehicle cable assembly.

Step 2.

Disconnect cable assembly from connector 5J1 at smoke generator.

Set POWER switch to ON.

Hold ENGINE switch to START.

Check for 28v between sockets H (+) and N (-) of cable assembly.

If 28v is present, set POWER and ENGINE switches to OFF and go to next step.

If 28v is not present, vehicle cable assembly is defective. Set POWER and ENGINE

switches 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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