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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Check Valve
Fig. 78a Testing Check Valve:
1.
Remove check valve from vacuum line.
2.
Check that air blows from the orange pipe through to the black pipe without resistance.
Fig. 78a 3.
Air should NOT flow from the black side through to the orange side.
4.
If a problem is found, replace the check valve.
5.
Reinstall the check valve in the vacuum line.