3200 Series Granulators 63”and 84”
357563
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08/22/2019
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5-10 Adjusting Belt Tension
For continuous reliable operation of the granulator, it is important that the belt tension is
correct. Correct tension reduces wear on rotor and motor bearings and keeps belt slip to a
minimum.
Figure 2 gives the recommended force to deflect each belt by an amount equal to the belt
span divided by 64. A gauge is available through the sales department to measure the
deflection and force. Use the following procedure to adjust the belt tension:
1. Turn off the granulator at the main isolator switch and remove fuses.
2. Remove the cover to gain access to the belts.
3. Loosen motor bolts on slide base.
4. Turn the adjusting screw on the motor slide base to tension the belts as required.
5. Re-tighten the screws, making sure the pulleys are in correct alignment.
6. Tighten motor bolts on slide base.
7. Replace the covers.
1. Turn off the granulator at the main isolator switch and remove fuses.
2. Remove the drive guard cover to gain access to the belts.
3. Determine the type of belt required from the Spare Parts List in Section 7-5.
4. Determine the force required to deflect one belt 1/64” (0.40mm) per 1 inch (
25.4mm)
of span length.
