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 414 of 1188

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

0072-12

DRAFT

0072

TFFT04817

Step 16.

Check crew cab air conditioner high-side pressure hoses for sign of frost buildup.

a.

If crew cab air conditioner high-side pressure hoses have sign of frost

buildup, replace frosted crew cab air conditioner hose (WP 0216).

b.

If crew cab air conditioner high-side pressure hoses do not have sign of

frost buildup, replace crew cab air conditioner expansion

valve (WP 0213).

Step 17.

Check if service/recycling station pressure gauges pressure is above 15 PSI and 40 PSI

(103-276 kPa) low-side pressure and above 120 and 330 PSI (827-2275 kPa) high-side

pressure and if air is warm.

If service/recycling station pressure gauges are not above 15 PSI and 40

PSI (103-276 kPa) low-side pressure and above 120 and 330 PSI (827-

2275 kPa) high-side pressure and air is warm, go to Step 19.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION