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

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

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

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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With Charging Station


To charge system using a charging station, follow instructions provided with unit and observe the following precautions:

1. Do not connect high pressure line to A/C system.
2. Always keep high pressure valve on charging station closed.
3. Perform all evacuation and charging through low side pressure service fitting.
4. Use approved refrigerant recovery equipment.
5. When charging is complete, disconnect equipment and check for leaks.
6. Run engine for a few minutes with A/C system operating and check for proper system pressures.