Sterling BP1640, BP1628, BP1620 Figure Belt Span and Deflection, Motor adjusting screws

Motor adjusting screws

Loosen these 4 nuts on the bolts holding the motor on the motor base. Slide the motor either backwards or forwards to achieve the proper belt tension and retighten the nuts.

6.There will normally be a drop in belt tension during the first 24 to 48 hours of operation due to stretch and the belts seating themselves in the sheave grooves.

7.After this initial “RUN IN” period, the machine should be stopped and the belts should be re-checked for tension. The motor position should be adjusted until the deflection force matches the values in column B.

8.In no case should the belts be overtensioned as this can significantly reduce belt and/or bearing life.

Figure 2

Belt Span and Deflection

BP1620, BP1628 & BP1640 Granulators Page 31 BP1600