Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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LEMON is the spiritual successor to CHARM, I recommend you try it!

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General Information

TOOLS REQUIRED
J 39500-B GM Air Conditioning Refrigerant Recovery, Recycling and Recharging System

NOTE: R-12 refrigerant and R-134a refrigerant must never be mixed, even in the smallest of amounts, as they are incompatible with each other. If the refrigerants are mixed, compressor failure is likely to occur. Refer to the manufacturer instructions included with the service equipment before servicing.

All with one hook-up, the J 39500-B GM air conditioning refrigerant recovery, recycling and recharging (ACR4) system removes Refrigerant-134a from the vehicle Air Conditioning (A/C) system, recycles, and recharges the system.

Single pass filtering during the recovery cycle, plus automatic multiple pass filtering during the evacuation cycle assures a constant supply of clean and dry refrigerant for A/C system charging. Refer to the manufacturer's instructions for further information.