22 M Motor Actuators
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Y20EBD Valve Linkage for M100 Motor Actuators
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CAUTION: Do not perform this operation if the valve is under
pressure. Shut off pump power, including standby
power, before attempting manual operation.
The valve can be manually operated without electrical power when
necessary for maintenance or emergency operation. To operate the valve
manually:
1. Remove the gear cover.
2. Remove the pinion gear from the gear housing and insert the gear
with the square hole facing out.
3. A 3/8 inch socket wrench drive will fit in the square hole and enable
manual positioning of the valve.
4. The spring can be compressed and then held in position by turning the
locking screw (located on the gear housing) in to hold the rack in
position.
IMPORTANT: To return to automatic operation, return the actuator to
the zero position and reinstall the gear with the square
hole engaging the actuator shaft. Repeat the travel limit
adjustments as necessary.
Manual Operation
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