Chevrolet 1980 Light Duty Truck Service Manual page 75

1
J 23500-01
SERVICE CHARGING
STATION
REFRIGERANT-12
Fig. 1 B -22--D ischarging The C.C.O.T. System W ith J-2 3 5 0 0 -0 1 C harging S tation
1
CLOSE ALL CONTROLS
AIR C O N D ITIO N IN G
3 FULLY OPEN GAUGE
SET VACUUM VALVE
4 CONNECT LOW-SIDE GAUGE
HOSE TO LOW-SIDE PRESSURE
SERVICE FITTING ON VEHICLE'S
ACCUMULATOR ASM. USING
J 5420 ADAPTER
5 "SLOWLY" OPEN LOW-SIDE
VALVE ON GAUGE SET
TO DISCHARGE
6 RE-CONNECT VACUUM
HOSE TO PUMP AFTER
DISCHARGE
DO NOT CONNECT
HIGH-SIDE HOSE
TO A/C SYSTEM
2 DISCONNECT VACUUM
HOSE AT VACUUM PUMP
& PLACE INTO CAN (SEE
"NOTE"BELOW)
VACUUM PUMP
NOTE: AN EMPTY 3 LB. COFFEE CAN
WITH A PLASTIC LID CROSS-SLIT
(X'ed) TO ALLOW HOSE ENTRY IS
RECOMMENDED.
1B-29
4 3 4 2
L IG H T T R U C K SER V IC E MANUAL