Operation CHARM: Car repair manuals for everyone.

Handling of Refrigerant Lines and Fittings

WARNINGS:
- Before opening the refrigeration system, make sure the work area is well ventilated.
- Welding or steam-cleaning operations should not be done on or near refrigeration system lines or other air conditioning parts on the vehicle.
- Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may Irritate eyes, nose, and throat.
- If accidental system discharge occurs, ventilate work area before resuming service.
- Refrigerant will displace oxygen, so be certain to work in well ventilated areas to prevent suffocation.
- When disconnecting any fitting in the refrigerant system, recover all Refrigerant-134a However, proceed very cautiously, regardless of the gage readings. Open very slowly, keeping your face and hands away so that no injury can occur. If pressure is noticed when a fitting is loosened, allow it to bleed off very slowly.