Charging System - continued

TM 10-3930-673-34

15-3. AIR CONDITIONING SYSTEM SERVICING (CONT)

WARNING

Make sure high pressure gage valve is in closed position on manifold gage set during

charging. Failure to do so will cause compressor to build pressure in refrigerant

container, causing injury to personnel or damage to equipment.

(6)

Start engine and set engine speed to 1500 rpm with hand throttle

(TM 10-3930-673-10).

(7)

Turn on A/C system (TM 10-3930-673-10) and blower fans on high speed.

NOTE

Keep refrigerant container upright at all times so refrigerant enters system as a gas.

(8)

Open low pressure gage valve (1) on manifold gage set (3) until system is fully charged.

(9)

Close low pressure gage valve (1) on manifold gage set (3).

(10)

Return hand throttle to normal idle (TM 10-3930-673-10).

(11)

Stop engine (TM 10-3930-673-10).

(12)

Remove refrigerant R-134 source from center hose (5) of manifold gage set (3).

15-10