Adjusting the threshold cylinder switch
The cylinder for threshold control is fitted with a sensor that indicates when the cylinder is fully extended.
1. Sensor
2. Sensitivity point
To calibrate the sensor, start by moving the cylinder to its extended position.
Move the sensor along the cylinder until it is becomes activated, which is indicated by the sensor's built-
in LED. Mark the position with a line on the cylinder at the same level as the sensor's sensitivity point,
which is marked on the sensor.
Then continue to move the sensor until it becomes non-activated, and mark this position on the cylinder.
Place the sensor so that its sensitivity point is centered between both marks.
Verify that the adjustment is correct by moving the threshold forward and backward.
Adjust the restrictor check valves to achieve a gentle and fluid motion.
Page 144 of 166
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