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16
3. Start the saw using the pushbutton.
4. Turn the speed setting handwheel (Figure
14) to the required speed. Turning the
handwheel clockwise increases speed.
Turning counterclockwise decreases speed.
Rotate the speed setting
handwheel only when the band saw is
running.
Evaluating Cutting Efficiency
The best way to determine whether the blade is
cutting efficiently is to observe the chips formed
by the cutting.
• If the chip formation is powdery, then the
feed is much too light, or the blade is dull.
• If the chips formed are curled, but colored –
blue or straw colored from heat generated
during the cut – then the feed rate is too
high.
• If the chips are slightly curled and are not
colored by heat – the blade is sufficiently
sharp and is cutting at its most efficient rate.
Welder Operation
Wear eye protection while
operating the welder. Use care when
handling the blade after welding to avoid
burns.
The welding procedure involves the following
steps: Shearing the blade, grinding teeth to
allow for the weld area, the actual welding,
inspection of the blade, annealing, grinding and
a final inspection of the blade. This procedure
can be accomplished using the shear and
welder assemblies on your band saw. Proceed
as follows:
Shearing
Cut the blade to the longest length needed for
the band saw. Using the shear to cut your blade
will ensure that the blade ends are cut flat,
square and smooth.
1. Place the blade in the shear as shown in
Figure 15. Make sure the blade is held
square with the shear knife, so that the cut
will be square with the blade.
2. Position the blade so that the cut is made at
a place that allows for uniform spacing of
the teeth. See Figure 16.
3. Push down the handle.
Figure 15
Figure 16