Walinga Central-Vac Operator And Parts Manual page 37

4. Use the appropriate weight to
determine the belt deflection in a
static condition (Table 1).
5. Adjusting Tension:
a. Loosen the jam
nuts on the motor
base and position
adjusting bolts.
Loosen base
position bolts
slightly.
b. Turn the adjusting
bolt to set the
tension. Turn both
bolts the same
amount to
maintain pulley
alignment.
c. Check the tension
again.
Overtightening will
cause belt stretch-
ing and overload
the bearing. Belts
that are too loose
will slip, tear and
wear rapidly.
Check alignment,
see next section.
d. Tighten base
position bolts.
e. Tighten jam nuts.
f. Install and secure belt covers.
Fig. 5-11 BELT DEFLECTION
Fig. 5-12 ADJUSTING BOLTS
WARNING
Machine is shown with guard removed for
illustrative purposes only. Do not operate
machine with guard removed.
37