Roadmaster 1992

Evacuating the System


Before servicing the vehicle, refer to the Precautions Section. Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components.

The ACR 2000 Air Conditioning Service Center J 43600 is a complete air conditioning service center. The ACR 2000 recovers, recycles, evacuates, and recharges A/C refrigerant quickly, accurately and automatically. The unit has a display screen that contains the function controls and displays prompts that will lead the technician through the recover, recycle, evacuate, and recharge operations. Refrigerant is recovered into and charged out of an internal storage vessel. The ACR 2000 automatically replenishes this vessel from an external source tank in order to maintain a constant 12-15 lbs (5.45-6.82 kg) of A/C refrigerant.

The ACR 2000 has a built in A/C refrigerant identifier that will test for contamination, prior to recovery, and will notify the technician if there are foreign gases present in the A/C system. If foreign gases are present, the ACR 2000 will not recover the refrigerant from the A/C system.

The ACR 2000 also features automatic air purge, single pass recycling, and an automatic oil drain.

Refer to the J 43600 ACR 2000 manual for operation and setup instruction. Always recharge the A/C System with the proper amount of R-134a.

If oil was removed from the A/C system during the recovery process or due to component replacement, the oil must be replenished. Oil can be injected into a charged system using A/C Oil Injector tool J 45037.

Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat. Be careful when connecting service equipment. Do not breathe refrigerant or vapor.

If accidental system discharge occurs, ventilate work area before resuming service.

Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.

  1. When an A/C System has been opened to the atmosphere, such as during installation or repair, it must be evacuated using a refrigerant recover/recycling/charging station such as the ACR 2000. If the system has been open for several days, the receiver/dryer should be replaced, and the system should be evacuated for several hours.
  3. Attach the high and low pressure fittings of the ACR 2000 to the high and low pressure service ports on the vehicle. Follow the equipment manufacturer's instructions to evacuate the system.