Walinga Central-Vac Operator And Parts Manual page 38

6. Pulley Alignment:
a. Lay a straight-edge across the faces of
the two pulleys.
WARNING
Machine is shown with guard
removed for illustrative purposes
only. Do not operate machine
with guard removed.
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.
1. Shafts are not parallel to one another.
3. Shafts are parallel and in alignment but
pulleys are not in alignment.
Fig. 5-14 MISALIGNMENT
Fig. 5-13 PULLEYS
2. Shafts are not in correct alignment al-
though they appear parallel when seen
from above.
4. Correct installation both shafts and pulleys
are parallel and in alignment.