Maintenance
20
3A9121A
Run Motor Manually
Use the manual override buttons (R) on each end of the
air valve to physically move the internal main shuttle
valve from one position to the other. Run the motor
manually to:
• Move the valve off center due to ice or debris.
• Flush a pump if a pilot valve is plugged, stuck in the
open position, or the pilot signal is leaking
1. Lower the air pressure to approximately 30–40 psi
(206 kPa, 2.06 bar – 276 kPa, 2.75 bar) to manually
operation the buttons.
2. If a pilot valve is plugged:
a. Press the button on the end where the motor
stopped. This will cause the motor to run
another cycle.
b. Press the button again to finish flushing.
3. If a pilot valve is stuck in the open position or the
pilot signal is leaking:
a. Press the button on the opposite end from
where the motor stopped and hold it in. This
will cause the motor to stroke to the other end.
b. Release the button to allow the motor to stroke
back.
NOTE:
For pilot valve issues, the motor can also be
manually operated by disconnecting the pilot tube from
the pilot valve and controlling the pilot signal exhaust
with your finger.
