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 370 of 1188

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

0070-4

DRAFT

0070

TFFT 04797

Step 4.

Start vehicle engine (TM 9-2320-347-10).

Run vehicle engine till engine reaches

operating temperature.

Change crew cab air conditioner/heater control panel set point

to 80ºF (26ºC) (WP 0009), check if crew cab air conditioner/heater produces warm air.

If crew cab air conditioner/heater does not produce warm air, go to Step 29.

Step 5.

Start crew cab air conditioner/heater (WP 0008).

Change crew cab air conditioner/

heater control panel set point to 45ºF (7ºC) (WP 0009), check if crew cab air conditioner

operates.

If crew cab air conditioner/heater does not operate, go to Step 7.

NOTE

TDH 02 and TLK 38 model crew cab air conditioner/heater control panels are

programmed similarly. Crew cab air conditioner/heater control panel is preset to 68ºF

(20ºC), it automatically resets to preset temperature when battery disconnect switch is

turned OFF then to ON position.

Step 6.

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).

Turn battery disconnect

switch to ON position (WP 0007).

Press the P button on crew cab air conditioner/heater

control panel (WP 0009), check if crew cab air conditioner/heater control panel set point

is at 68ºF (20ºC).

a.

If crew cab air conditioner/heater control panel is programmed

correctly, replace crew cab air conditioner/heater control panel

(WP 0202).

b.

If crew cab air conditioner/heater control panel is not programmed

correctly, reprogram crew cab air conditioner/heater control

panel (WP 0009).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION