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11.4 ADJUST SPRING FORCE
Like any technical component, springs are subject to natural wear. Thus, the spring force may
decrease after longer operation and must be readjusted.
Adjust the spring force so that the spring arm with end unit remains in any desired position.
CAUTION: DESTRUCTION OF THE SPRING ARM
The spring force is adjusted in the upper end position.
ADJUST SPRING FORCE
CAUTION: DESTRUCTION OF THE SPRING ARM
Screwing in the adjusting screw too deeply will break the spring arm.
Carefully screw in the adjusting screw while repeatedly checking the braking force.
• If the spring arm drops - the spring force is too low:
The adjusting screw must be turned to the left (counterclockwise).
• If the spring arm rises - the spring force is too high:
The adjusting screw must be turned to the right (clockwise).
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1. Remove the joint cover on the left from the direction of
the end unit on the spring arm. To do this, carefully pry
the joint cover out of the groove in the spring arm joint
using a narrow slotted screwdriver.
2. Move the end unit to the upper end position.
3. Insert slotted screwdriver into the hole.
4. Adjust spring force.
5. Mount the joint cover and snap it into place.
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