Air Cleaner Cap Sub-Assembly (ES300)

1. Cover port "C" with finger and check that air flows from port "B" to port "A". See Fig 1.
2. Cover port "C" with finger and check that air does not flow from port "A" to port "B".
3. Cover ports "A" and "C" with fingers, apply 18 in. Hg (60 kPa) of vacuum to port "B" and check that there is not change of vacuum after one minute.
4. Repair or replace as necessary.

Fig 1: Checking Air Cleaner Cap Sub-Assembly

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