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
Vacuum Vent Valve: Testing and Inspection
1. Disconnect vacuum hose (white stripe) from servo that leads to dump valve.
2. Connect a hand vacuum pump tool No. 021-00037 or equivalent to hose, and draw vacuum. If a vacuum can not be obtained, either the hose or dump valve are leaking, and should be replaced.
3. Depress brake pedal, vacuum should be released. If vacuum is not released, adjust or replace dump valve.