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G1148 15" Bandsaw
G1148 15" Bandsaw -16-
Figure 11. Lower guide adjustments.
Guide
Blocks
Support
Bearings
Table Pin
Trunnions
Blade Guides
Whenever changing a blade or adjusting tension
and tracking, the upper and lower blade support
bearings and guide blocks must be re-adjusted.
Always adjust the assemblies away from the
blade before installing a new blade or making
blade tracking adjustments. After blade tension
and tracking are set correctly, re-adjust the upper
and lower support bearings and guide block
assemblies into position. See Figures 10 and 11
for locations.
UPPER GUIDES
Adjustment of the upper guides is a two-part pro-
cedure, consisting of adjustments to both the
support bearings and guide blocks. They are as
follows:
Support Bearings - The support bearings
back-up the blade during the sawing opera-
tion. To adjust the support bearings, loosen the
setscrews securing the support bearing
shafts. Push or pull the shafts so that the
upper and lower support bearings are within
1
/64" behind the blade. Retighten the setscrews.
Guide
Blocks
Support
Bearings
Securing
Bolts
Setscrews
Shafts
Setscrews
Star Knobs
Shafts
Figure 10. Upper guide adjustments.
Guide Blocks - The guide blocks ensure that
the blade is not pushed too far laterally. To
adjust the guide blocks, loosen the setscrews
securing the guide block shafts. Adjust evenly
so that the front of the blocks are
1
/64" behind
the gullet line (See Figure 13) of the blade.
Then loosen the guide block securing bolts
(#65). Take a short piece of transparent tape
and wrap one thickness of tape around the
blade. Move the portion of the blade with the
tape so that it is between the guide blocks.
Carefully pinch both blocks without disturbing
the blade. Tighten the securing bolts and
remove the tape. This provides a clearance of
approximately .004''.
LOWER GUIDES
Adjustments for the lower guides are identical to
those for the upper guides. Use Figure 11 to
identify the lower guide assembly components.
The bandsaw blade is dangerously sharp.
Use extreme caution when working near the
saw blade. Failure to exercise care could
result in severe injury.