2. Make sure that exhaust muffler is clear of debris and unobstructed by air lines or control wires.
3. The exhaust muffler can be temporarily removed to test the clamp response. If the clamp returns at
normal pace without the exhaust muffler then the exhaust muffler is obstructed and needs replaced.
Fig 6
Note: It is never recommended to run the machine without exhaust mufflers as
sawdust can be pulled back into solenoid valve and cause issues.
TSM-21 Diagnostic Manual Parker/Humphrey Solenoids