AR83.30-P-1760GH Drain Evacuate & Refill A/C, Check For Function/Leaks

Draining, Evacuating And Refilling Air Conditioning, Checking Function And Checking For Leaks







Draining

DANGER:
- Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning. Inhaling overheated refrigerant vapors may be toxic.
- Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or open flames. Wear eye protection and protective gloves. Work only in well ventilated areas.
- Risk of injury from skin and eye contact with liquid refrigerant.
- Carry out repair work on the air conditioning system circuit only after the system has been discharged.

1 Connect the connector (blue) (3) of the filling unit (1) to the Schrader valve of the high-pressure line and the connector (red) (2) to the Schrader valve of the suction line.

NOTE: During all steps, the operating instructions for the particular filling unit must be followed.

2 Discharge air conditioning system
3 Drain separated oil for refrigerant compressor out of the inspection glass for the filling unit and determine the quantity exactly

NOTE: Drained quantity must be replaced by fresh oil for refrigerant compressor

Evacuate
4 Clean air conditioning system and evacuate
5 Supplement oil for refrigerant compressor

NOTE: The exact quantity determined when drained must be used.

6 Fill air conditioning system

Testing
7 Inspect air conditioning system for leaks with leak detector

DANGER:
- Risk of accident. Accidents may result if the vehicle starts off unintentionally with the engine running. Risk of injury from bruises and burns if you hold your hand near engine when it is started or when it is running.
- Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.

8 Check function of air conditioning

NOTE: Run engine at idle speed for about 4 minutes and check all the component functions which are of relevance for proper operation of the air conditioning system.