Issue: 04/2011
Repair and Adjustments
• Loosen the locking screw (black arrow) with an Allen key.
• Adjust the tension of the spring by turning the adjusting ring (white arrow) clockwise
with a special tool.
$The pad shoe pressure should be (measured on pad shoe with a spring scale):
- 450 g ± 50 g at open condition and
- 150 g to 250 g at closed condition.
• After adjustment lock the spring by tightening the locking screw (black arrow) again.
• Turn the adjusting screw (arrow) until
a gap of 2 lm layers is generated
between the sprocket and the pad
shoe.
• After adjustment paint-lock the
adjusting screw.
Position the sensor (arrow) in a way that it “looks” vertically towards the lm surface.
The sensor’s view must be perpendicular to the lm.
• To adjust the sensitivity of the sensor
thread a lm and turn the plastic screw
(arrow) with a screw driver until the red
LED (adjusting aid) blinks.
• Then turn the screw until the LED surely
lights steadily.
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