5.20 Exhaust Mufflers on Solenoids Valves 21.61
The Drive Cylinder provides the forward and back stroke to the Motor Carriage for the Router and
Pilot Drill phases of the cycle. If the exhaust mufflers on the solenoid valves become clogged, the
machine may not complete one or both of these phases. Test by rocking the carriage back and
fourth by hand. You should detect a “puff” of air at the exhaust mufflers when manually rocking
the carriage. Exhaust Mufflers can also be temporarily removed to cut a couple of test pockets. If
having the Exhaust Muffler removed solves the issue, then the Exhaust Mufflers should be
replaced. Please note, it is never recommended to run the machine without Exhaust
Mufflers as sawdust can be pulled back into solenoid valve and cause issues.
5.20.1 TESTING STEPS:
1. Open the rear door. Remove the exhaust mufflers from the Router and drill solenoids. See Fig 21.
Fig 21
TSM-21 Diagnostic Manual Parker/Humphrey Solenoids
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