saab Workshop Repair Guides

Saab Workshop Service and Repair Manuals

Draining and Filling of Refrigerant-R134a|Page 982 > < Draining and Filling of Refrigerant-R134a|Page 980
Page 1
background image

Refrigerant: Service and Repair
Draining and Filling of Refrigerant-R12

Measuring Pressure With The Robinair Smart Cart

1. Check that the cock on the blue low-pressure hose and the cock on the red high-pressure hose on the pressure gauge stand are both closed.

2. Connect the blue low-pressure hose to the low- pressure side of the compressor.

3. Connect the red high-pressure hose to the high-pressure side of the compressor.

4. Start the engine.

5. At engine speeds between 1500 and 2000 rpm and when air temperature is 20 °C (68 °F), it should be possible to read the following pressures on

the pressure gauge when the compressor is working:
-

Low-pressure side: 1-3 bar

-

High-pressure side: 10.5-14.5 bar

Draining and Filling of Refrigerant-R134a|Page 982 > < Draining and Filling of Refrigerant-R134a|Page 980