34
Service Manual
Loosen the belt (C) from the “motor arm”.
Demount the motor pulley (D) by loosening the screw (2).
Mount the new motor pulley and put the belt in position (C) and tighten the screws. Start by tightening 1 and 3 a bit.
Thighten 4 and check the belt tension with a frequency meater or similar. The frequency shall be 80 Hz ± 5. Adjust
with 4 if necessary. Then tighten 2 with tightening torque 80 Nm ± 5 and finally 1 and 3 with tightening torque 6 Nm ±
1 again when all is in position. Check that 5 is tightened.
Fasten the belt (B) and the wire (A). Rotate the drum to make sure that the belt is in position.
Tighten the belt tensioner with a torque wrench by pulling the tension plate (E) clockwise until it is in position.
Check the belt tension with a frequency meater or similar. The frequency shall be 75 Hz ± 5 Hz. Adjust if necessary.
Remount the cover panel and the rear panels.
Note!
The machine will NOT work without the cover panel.
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