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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Vacuum Switch C

1. Disconnect hose No. 15 to control box at vacuum hose manifold and connect vacuum pump to hose.
2. Check for continuity between black/yellow and blue/black wire terminals of 6 pin control box connector.
3. There should be continuity when vacuum is above 12 inches Hg and there should be no continuity when vacuum is released.