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

Dump Valve

Vacuum Hose Routing:

1. Disconnect two vacuum hoses from dump valve.
2. Connect a hand-held vacuum pump with gauge to each vacuum port.
3. Apply vacuum to the upper port, approximately 18 in Hg.
4. Apply vacuum to lower port, approximately 11 in Hg.
5. Both ports should hold vacuum.
6. With vacuum holding on both ports, release vacuum to upper port. Lower port vacuum should vent when this is done.
7. If tests are not satisfactory, replace vacuum regulator.