9000 Hatchback L4-2290cc 2.3L DOHC Turbo EFI (1994)
6. Open the cocks on the blue low-pressure hose and red high-pressure hose on the pressure gauge stand.
7. Start the draining station.
8. If the draining station operates correctly, it should show negative pressure when the draining valve is closed.
9. Open the draining valve and drain the A/C system of refrigerant.
10. Close the draining valve when the gauge on the draining station shows a partial vacuum (approx. 10 mm Hg).
11. Turn off the draining station.
12. Close the cocks on the blue low-pressure hose and red high-pressure hose on the pressure gauge stand.
13. Remove the yellow hose from the draining station. Draining is now completed and work on the A/C system can commence.
Vacuum Pumping
Make sure that the amount of compressor oil in the A/C system is correct before starting vacuum pumping and charging. See: Service and Repair
NOTE: The system should be vacuumed pumped on both the low-pressure and high-pressure sides at the same time. The non-return valve in the intake
to the low-pressure side of the compressor makes it impossible to vacuum pump one side only.
1. Connect the blue tow-pressure hose, using a snap-on coupling, to the low-pressure side of the compressor.
2. Connect the red high-pressure hose, using a snap-on coupling, to the high-pressure side of the compressor.
3. Open the valves on both snap-on couplings by screwing in the knobs
4. Connect the yellow hose on the pressure gauge stands middle outlet to the refrigerant bottle.
5. Open the cocks on the blue low-pressure hose and red high-pressure hose on the pressure gauge stand.
6. Start the vacuum pump.
7. Open the vacuum valve and let the pump run for 30 minutes.
8. Close the vacuum valve when vacuum pumping is finished after about 30 minutes. The pressure should then be 0 - 10 mbar.
