Product Manual

SECTION 6 SHOPTEK
USER MANUAL
65
02250180-090 R00
6.9 REPLACEMENT AND
ALIGNMENT OF BELT
PULLEYS
In the event of the motor or compressor unit having
been removed and replaced, pulley alignment will
have to be checked and adjusted.
Misalignment of pulleys can cause rapid wear of the
V belt form, considerably shortening the service life
of both belts and pulleys. Due to Sullair’s innovative
design, only parallel alignment of the drive pulleys
needs to be checked
P
ARALLEL ALIGNMENT CAN BE CHECKED BY TWO
METHODS.
1. Placing a straight edge against the pulleys
near their centers. For correct alignment,
the straight edge must be sitting flat against
both pulleys, i.e. full face contact. There
should be no more than 0.5mm misalign-
ment.
2. Using a laser, ensure misalignment is no
greater than 0.5°.
Figure 6-11: Belt Tension Adjustment, ST1100, ST1500, 15-20HP
1. Belt Guard 5. Comp. Unit Mounting Plate Bolts (4)
2. Belt Tension Adjustment Screw 6. Comp. Unit Pulley
3. Locking Nut 7. Belts
4. Jacking Nut 8. Motor Pulley