40 Series Granulators Page 33
1. Verify that the alignment of the pulleys is correct.
Utilizing a straightedge of sufficient length to span from
one pulley to the other, place it along the sides of both
pulleys. The entire edge of each pulley should fully
contact the straightedge.
2. Measure the belt span (see Figure 2) in metres.
Calculate the deflection in mm. on a basis of 16 mm per
metre of pulley centre distance
i.e. Centre distance (m) x 16 = Deflection in mm.
The force required to deflect the belt 16 mm per metre
of span is listed in the table on page 34.
i.e. 65(N) x Centre distance (m) = Force required to
achieve the calculated deflection.
3. Using a spring scale, apply a perpendicular force to any
ONE of the belts at the midpoint of the span.
4. The motor position should be adjusted until the
calculated deflection matches the force required.
Belt pulleys
(Located on left-hand
side of unit, under the
sheave guard.)
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