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6. Pulley Alignment:
a. Lay a straight-edge across the faces of the
two pulleys.
b. If the gap between the pulley and the
straight-edge exceeds 1/16 inch (1.5 mm),
the pulleys must be realigned.
c.
Review the types of alignment before
starting.
d. Use the adjusting bolts on the input shaft
to align the input pulley. Tighten jam nuts
when alignment has been completed.
e.
Use the bearing housing assembly anchor
bolts to align the blower pulley. Tighten
anchor bolts to their specified torque.
f.
Set the belt tension.
g. Install and latch belt cover.
7.
Be sure all guards are installed and secure
before resuming work.
Fig. 5-12 Misalignment
39
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