4. Specifications regarding the machine
4.8 Revolution changer for 2.0 kW motor
The potentiometer can be used to infinitely adjust the revolutions of the working spindle from 100-5000
rpm (2nd setting = preset at the factory).
If the lower revolutions of 50-2500 rpm (1st setting) are required, the drive belt must be applied. To do
this, proceed as follows:
1. Open the gear cover hood by undoing the safety screw with the supplied special key
2. Undo the hexagonal nut (2), this undoes the second hexagonal nut (3) and the drive belt (1) is
loosened
3. Place the drive belt (1) on the other transmission setting of the belt pulley (5 + 6)
4. To tension the drive belt (1) turn the hexagonal nut (2) clockwise in such a way that the drive belt
(1) cannot slip on the belt pulley (5 + 6)
5. Tighten the hexagonal nuts (3) on the holding bolt (4) to tension the drive belt
6. Close the drive cover hood again and secure with the safety screw
Setting on the potentiometer 1st setting rpm 2nd setting rpm
0% 50 100
10% 200 370
20% 470 900
30% 725 1400
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