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 415 of 1188

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

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DRAFT

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END OF TASK

FOLLOW-ON MAINTENANCE

1.

Install crew cab bench seat if removed (WP 0501)

2.

Remove wheel chocks (TM 9-2320-347-10)

END OF TASK

END OF WORK PACKAGE

TFFT04770

Step 18.

Check if crew cab air conditioner condenser fans operate.

a.

If crew cab air conditioner condenser fans operate, replace crew cab

air conditioner expansion valve (WP 0213).

b.

If crew cab air conditioner condenser fans do not operate, troubleshoot

Crew Cab Air Conditioner/Heater Does Not Operate

Properly (WP 0070).

Step 19.

Check if service/recycling station pressure gauges are above 15 PSI and 40 PSI (103-

276 kPa) low-side pressure and below 120 and 330 PSI (828-2275 kPa) high-side

pressure if air is warm.

a.

If service/recycling station pressure gauges are above 15 PSI and 40

PSI (103-276 kPa) low-side pressure and below 120 and 330 PSI (828-

2275 kPa) high-side pressure and air is warm, replace crew cab air

conditioner compressor (WP 0210).

b.

If service/recycling station pressure gauges are not above 15 PSI and

40 PSI (103-276 kPa) low-side pressure and below 120 and 330 PSI

(828-2275 kPa) high-side pressure and air is not warm, fault corrected.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION