BOLT
PULLEY ALIGNMENT - WITH TENSIONER
NUT
ALIGN
TENSIONER
MARKS
ADJUSTABLE
PULLEY
FIXED
PULLEY
TENSIONER
TENSIONER BOLT AND
ADJUSTMENT NUT
FIGURE 14
Check Belt Tension
Overtensioning belts shortens belt and bearing life. Check
belt tension as follows:
1 -
2 - Apply perpendicular force to center of span (X) with
of span length or 1.5mm per 100mm of span length.
Example: Deection distance of a 40” span would
be 40/64” or 5/8”.
Example: Deection distance of a 400mm span
would be 6mm.
3 -
A force below these values indicates and
undertensioned belt. A force above these values
indicates an overtensioned belt.
DEFLECTION 1/64” PER INCH OF SPAN
OR 1.5mm PER 100mm OF SPAN
FORCE
FIGURE 15
Field-Furnished Blower Drives
in BLOWER DATA section to determine BHP and RPM
required. Reference table 6 and 7 to determine the manu-
facturer’s model number.
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