ENGINE CRANKS BUT WILL NOT S TART BELOW 4 0 F (AIR BOX HEATER IS USED)Continued

ENGINE CRANKS BUT WILL NOT S TART BELOW 4 0 F (AIR BOX HEATER IS USED)Continued - TM-9-2350-247-20-1_151

ENGINE CRANKS BUT WILL NOT S TART BELOW 4 0 F (AIR BOX HEATER IS USED)Continued - TM-9-2350-247-20-1_153

TM-9-2350-247-20-1 Crane (CAB) Components Recovery Vehicle Full Tracked: light Armored M578 (2360-00-439-6242) (EIC:3LA) Manual
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TM 9-2350-247-20-1 ENGINE CRANKS BUT WILL NOT S TART BELOW 4 0 F (AIR BOX HEATER IS USED)—Continued 0015 00 3DY 1. Remove air box heater switch (WP 0184 00 or WP 0185 00). 2. Remove circuits 406 (1) and 400B (2) plugs from air box heater switch jacks (3) and (4). 3. Measure resistance between switch jacks (3) and (4) with air box heater ON. 4. Does multimeter read 0 ohms? YES NO 3DYN 1. Replace air box heater switch (WP 0184 00 or WP 0185 00). 2. Verify no faults found. 4DY 1. Remove circuit 27 plug (1) from instrument panel circuit breaker (2). 2. Measure resistance between instrument panel wiring harness circuit 27 (1) and 400B (3) plug pins. 3. Does multimeter read 0 ohms? YES NO 4DYN 1. Repair instrument panel wiring harness circuit 400B/27 (WP 0294 00). 2. Verify no faults found. 0015 00-10

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