CHARGING - TM-5-2410-237-231212

TM 5-2410-237-23

AIR CONDITIONING REFRIGERANT SERVICING

(AIR CONDITIONING EQUIPPED MACHINES) - CONTINUED

0229 01

CHARGING - CONTINUED

Turn the thermostat off. The clutch should disengage.

Check sight glass on receiver drier for bubbles. Add 6-8 oz (177-237 mL) more of R-134a or approved refrigerant after

the sight glass clears.

NOTE

If clutch does not engage, the system may not have been charged to high enough pressure to actuate the

binary switch. Place a jumper wire across the switch and run the system until it is fully charged, then

remove the jumper wires.

If refrigerant is slow to enter system because of low outside temperatures, vaporization can be achieved

by placing refrigerant tank in a tub of warm water, no warmer than 125F (52C).

Disconnect high side hose. With engine running, open low side and high side hose valves to recover refrigerant from

lines.

Shut down engine.

Leak test air conditioning system (WP 0010 00).

Check operation of air conditioning system (TM 5-2410-237-10).

END OF WORK PACKAGE

Change 1

0229 01-4