TM-5-4210-249-13-P-1

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 1 OF 4

TM-5-4210-249-13-P-1 - Page 374 of 1188

TM 5-4210-249-13&P-1

0070-8

DRAFT

0070

TFFT 04800

WARNING

ICON 3

Remove rings, wristwatches, neck chains, and any other jewelry before working

around vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry

and tools may short across electrical circuits and cause damage to equipment, or

severe burns or electrical shock to personnel.

Step 12.

Stop crew cab air conditioner (WP 0008). Shut vehicle engine off (TM 9-2320-347-10).

Turn battery disconnect switch to OFF position (WP 0007).

Remove crew cab air

conditioner/heater control box cover (WP 0201).

Start crew cab air conditioner

(WP 0008).

With a test lead set, check for 22 to 28 VDC at wire 1394 from relay module

block crew cab air conditioner condenser fan relay, wire 1394 terminal to a known good

ground.

a.

If 22 to 28 VDC are present, repair wire 1394 in body condenser wire

harness if repairable (TM 9-2320-325-14&P), or replace body

condenser wire harness (WP 0436).

b.

If 22 to 28 VDC are not present, replace crew cab air conditioner/heater

control box (WP 0201).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION