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BJ5-615 Chapter 5: Maintenance 42 of 85
3. Lock the drive motor into new position using tensioning screws so the motor
shaft is parallel to the rotor axis and aligned.
4. Check the tension force of the V-belt (refer to previous section).
5. Mount the V-belt cover.
Checking V-belt condition, replacing V-belt
CAUTION! Running V-belts can pull objects into the machine! Hair, jewelry
etc. can be pulled into machine without proper precaution
resulting in serious injury. NEVER dismount the V-belt cover
and window during operation.
If a V belt is porous or ripped, it must be replaced as follows:
1. Remove the V-belt cover.
2. Loosen the front and rear tensioning screw.
3. Relax the V-belt by shifting the drive motor.
4. Put new V-belt in.
5. Tension the V-belt (refer to previous section).
6. Mount the V-belt cover.
Working on the Cutting Cutters
Correctly setting and mounting the cutting cutters is important when working with
shredders to ensure efficient and economic function.
Replacing and Checking the Cutting Cutter Mountings
Certain machine parts are subject to stress during operation as a result of vibrations that
can lead to loosening of the screw connections. Therefore, it is absolutely necessary to
check the cutter and bed knife mounting screws in accordance with the Maintenance
Plan.
1. Tighten the mounting screws on the cutters and bed knives using a torque wrench.
(Check required torque for the screw size.) The required torque for the cutter
mounting screws is 120 Nm.
NOTE: You can find out the required torque from the following table. Tightening
capacity decreases for screw when loosened and tightened again several times.
New screws of the same material quality must replace the cutting cutter
mounting screws after they have been loosened and tightened several times.