Charcoal Canister
- Disconnect hoses from charcoal canister. Check for clogged filter and/or stuck check valve by applying low air pressure to port "A". See Figure. Ensure air flows freely from other ports on charcoal canister.
- Apply low air pressure to port "B" while holding port "C" closed. See Figure. Ensure air flows freely from port "A". Replace charcoal canister if defective.
- To clean charcoal canister filter, apply 43 psi (3 kg/cm2
) air pressure to port "A" while holding port "B" closed. Air should flow from port "C". Ensure no activated carbon comes out of charcoal canister. DO NOT attempt to wash out charcoal canister.
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