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 390 of 1188

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

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DRAFT

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TFFT 4812

Step 40.

Put crew cab air conditioner/heater control panel switch to off position (WP 0008).

Turn

battery disconnect switch to OFF position (WP 0007).

Reconnect crew cab air

conditioner/heater blower motor red wire connector.

Disconnect crew cab air

conditioner/heater blower motor black wire connector.

With a test lead set check for

continuity across black wire from crew cab air conditioner/heater blower motor wire

harness connector to a known good ground.

a.

If continuity is present, replace crew cab air conditioner/heater blower

motor (WP 0200).

b.

If continuity is not present, repair or replace black wire

(TM 9-2320-325-14&P).

Step 41.

Put crew cab air conditioner/heater control panel to off position (WP 0008).

Turn battery

disconnect switch to OFF position (WP 0007). Remove crew cab air conditioner/heater

control box cover (WP 0201).

Check for continuity across red wire from crew cab air

conditioner/heater blower motor wire harness connector to crew cab air conditioner/

heater control box relay module block, crew cab air conditioner/heater blower relay red

wire terminal.

a.

If continuity is present, replace crew cab air conditioner/heater control

box (WP 0201).

b.

If continuity is not present, repair or replace red wire

(TM 9-2320-325-14&P).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION