DeZurik G-SERIES Instruction - Page 5

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DeZurik G-SERIES Instruction

Adjusting Position Stops

The G-Series Cylinder Actuators have both open and closed position stops. See Figure 2 for
position stop identification.
The position stops are factory set and do not require adjustment unless the actuator has been
disassembled or actuator orientation has been changed.

Adjusting the Open Position Stop

On actuators without booster cylinders, the open position stop is located in the end of the extension cap
opposite the cylinder. On actuators with booster cylinders, the open position stop is located in the end
of the power cylinder. See Figure 2.
1. Open the valve and loosen the Open Position jam nut.
2. Adjust the Open Position set screw to the proper position.
3. Lock the Open Position set screw in place with the jam nut.
August 2012
Cylinder Operated G-Series Actuator
Figure 2 – Position Stops
Page 5
DeZURIK
D10022