TM 9-2320-302-34
0112 00-2
AIR CONDITIONING SYSTEM REFRIGERANT (R-134A) MAINTENANCE - CONTINUED
0112 00
RECOVERY - CONTINUED
3.
Follow recovery/recycling manufacturer’s instructions and recover all refrigerant from system.
NOTE
•
Always comply with all local regulations regarding refrigerant disposal. You may be subject to substan-
tial penalties for improper disposal.
•
Any time air conditioning system refrigerant is evacuated, replace receiver-drier.
4.
Replace receiver-drier (WP 0118 00).
NOTE
If system is contaminated with moisture, compressor oil must be replaced with clean oil. If system is heavily
contaminated with desiccant or grit, replace compressor and expansion valve.
5.
Service air conditioner compressor (WP 0117 00).
EVACUATING/RECYCLING
NOTE
System must have been recovered and compressor filled with correct amount of refrigerant oil. Replace
receiver-drier if system is opened.
1.
Wearing protective goggles and non-leather gloves, attach recovery/recycling station’s hoses to valves.
NOTE
Push down firmly on hose connectors until a clicking sound is heard. This will ensure coupler is locked.
a.
Ensure recovery/recycling station’s valves are closed.
b.
Connect red high-side hose to discharge service valve.
c.
Connect blue low-side hose to suction service valve.
d.
Turn knob clockwise on each coupler to open shrader valves.
5
6
4
3
2
1
A
To Recovery Station
1
Manifold Suction Hand Valve (Open)
2
Low-Side Gage
3
High-Side Gage
4
Manifold Discharge Hand Valve
(Open)
5
Suction Service Valve
6
Discharge Service Valve
A
