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-18- 18" & 20" Super Heavy-Duty Bandsaws
Figure 17. Guide bearings properly adjusted.
The guide bearings ensure that the blade cannot
twist during operation. Perform the steps below
for both upper and lower guide bearings.
To adjust the guide bearings:
1. Carefully tighten the guide adjustment knobs
until the guide bearings just touch the blade
on each side as in
Figure 17
. Do not deflect
the blade while making this adjustment and
do not over-tighten!
2. Tighten each of the jam nuts.
Ideally, the guide bearings should have 1 or 2
thousandths (0.001-2") clearance from the blade
and should not pinch the blade. The blade could
become hot and deformed if excessive pressure
is applied by the guide bearings. The system
employed by this bearing assembly will give
clearance for the blade when the jam nuts are
tightened. Make sure the jam nuts are tight before
starting the machine.
Guide Bearings Table Tilt
To tilt the table:
1. Loosen the large hex bolt under the table
and in the center of the table trunnion as
shown in
Figure 18
.
2. Tilt the table to the desired angle. Use the
angle gauge for easy reference.
3. Tighten the large hex bolt in the center of the
table trunnion.
Figure 18. Loosen the bolt to tilt the table.
Angle Gauge
Bolt