Delta 20-330 - Manual (Page 19)

19 - English
TYPICAL OPERATIONS FOR VERTICAL
BAND SAW
NOTE: THIS BAND SAW IS RECOMMENDED FOR
USE IN CUTTING METAL ONLY.
Before starting the machine, see that all adjustments
are properly made and the guards are in place. Turn
the upper wheel by hand to make sure that everything
is correct BEFORE turning on the power. Keep the top
guide within 1/8" of the work piece at all times. Do not
force the material against the blade. Light pressure
on the work piece will produce a smoother cut, and
prevent excess friction, heating, and hardening of the
blade. KEEP THE SAW BLADE SHARP. Very little
forward pressure is required for normal cutting. Keep
the workpiece moving at a slow and consistent rate
against the blade to ensure a smooth and accurate cut.
Avoid twisting the blade by trying to turn sharp corners.
Remember, you must saw around corners.
Fig. 37
CUTTING CURVES
When cutting curves, turn the workpiece carefully so
that the blade follows without twisting. If a curve is so
abrupt that it is necessary to repeatedly back up and
cut a new kerf, a narrower blade, a blade with more set,
or additional relief cuts Fig. 37, may be necessary to
allow the blade to cut more efficiently. The more set a
blade has, the easier it will allow the stock to be turned,
but the cut is usually rougher than where a medium
amount of set is used.
When withdrawing the piece being cut, changing
the cut, or for any other reason, be careful not to
accidentally draw the blade off the wheels. In most
cases, it is easier and safer to turn the stock and
saw out through the waste material, rather than try to
withdraw the stock from the blade.
MACHINE USE
TYPICAL OPERATIONS FOR HORIZONTAL BAND SAW
The horizontal band saw cuts all types of metals, including ferrous and non-ferrous metal, steel pipe, angle iron,
conduit, brass, aluminum and copper. As shown in Fig. 24 and 25, workpieces can be cut at 90 or tilted to any angle
in the vise.