TM 9-2320-363-34-1
A I R C O N D I T I O N I N G S Y S T E M R E F R I G E R A N T ( R - 1 3 4 a ) M A I N T E N A N C E
( C O N T )
NOTE
The system must have been
recovered and the compressor
filled with the correct amount of
refrigerant
oil.
R e p l a c e t h e
receiver-drier if the system is
opened.
1.
WEARING PROTECTIVE GOGGLES
AND NON-LEATHER GLOVES, ATTACH
T H E
R E C O V E R Y / R E C Y C L I N G
STATION’S HOSES TO THE VALVES.
A. To Vacuum Pump
1.
Manifold Suction Hand Valve (Open)
2.
Low-Side Gauge
3.
High-Side Gauge
4.
Manifold Discharge Hand Valve (Open)
5.
Suction Service Valve
6.
Discharge Service Valve
N O T E
Push down firmly on the hose connectors until a clicking sound is heard. This will ensure that
the coupler is locked.
a.
MAKE SURE THAT THE RECOVERY AND RECYCLING STATION’S VALVES ARE
CLOSED.
b.
CONNECT THE RED HIGH-SIDE HOSE TO THE DISCHARGE SERVICE VALVE.
c.
CONNECT THE BLUE LOW-SIDE HOSE TO THE SUCTION SERVICE VALVE.
d.
TURN THE KNOB CLOCKWISE ON EACH COUPLER TO OPEN THE SCHRADER
VALVES.
2.
FOLLOW THE RECOVERY AND RECYCLING STATION MANUFACTURER’S INSTRUCTIONS AND
EVACUATE/RECYCLE THE REFRIGERANT SYSTEM.
11.1-4
Change 1
