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 413 of 1188

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

0072-11

DRAFT

0072

TFFT04798A

Step 14.

Check if air conditioner compressor clutch engages and disengages quickly.

a.

If air conditioner compressor clutch engages and disengages quickly,

perform leak test and service crew cab air conditioner (WP 0217).

b.

If air conditioner compressor clutch does not disengage, replace crew

cab air conditioner thermostatic switch (WP 0206).

Step 15.

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

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

pressure and air only slightly cool.

If service/recycling station pressure gauges pressure are not below 15 PSI

and 40 PSI (103-276 kPa) low-side pressure and below 120 and 330 (827-

2275 kPa) high-side pressure and air is not slightly cool, go to Step 17.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION