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)

Or, hide this message: temporarily or permanently

Accumulator HVAC: Service and Repair


When removing an accumulator that will be reused, or when installing a new accumulator, ensure inlet and outlet openings of unit are protected from exposure to the atmosphere. If openings are not sealed, moisture contamination will result, rendering unit inoperative. New units are supplied with caps for this purpose, and plastic sheet and elastic bands may be used on units removed from vehicles.



C, K, G, R & V SERIES

1. Disconnect battery ground cable and compressor clutch connection. Discharge system refrigerant.
2. Disconnect inlet and outlet lines at accumulator. Plug all open connections.
3. Remove mounting bracket screws and accumulator.
4. Reverse procedure to install. If replacing accumulator with new unit, drain oil from old accumulator and measure. Add this amount of fresh refrigerant oil plus 1 fluid ounce to new unit. Use new O-rings coated with clean refrigerant oil at connections.