User Guide

BP1620, BP1628 & BP1640 Granulators Page 31 BP1600
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
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.
Motor adjusting screws