Craftsman 137.224320 - Manual (Page 17)

To avoid twisting the blade, do not turn sharp corners, saw
around corners.
A band saw Is basically a "curve-cutting" saw. It is not
capable of doing intricate inside cutting as can be done with
a scroll saw.
It is also used for straight line operations such as
crosscutting, ripping, mitering, beveling, compound cutting,
and resawing.
A WARNING
To avoid blade breakage, fire or other damage or injury,
NEVER use this band saw to cut ferrous metals.
CUTTING CURVES
When cutting curves, carefully turn the workpiece so the
blade follows without twisting. If the curve is so sharp that
you repeatedly back up and cut new kerf, use a narrower
blade, or a blade with more set {teeth further apart). When a
blade has more set, the workpiece turns easier but the cut is
rougher.
When changing a cut, do not withdraw the workpiece from
the blade, The blade may get drawn off the wheels. To
change a cut, turn the workpiece and saw out through the
scrap material area.
When cutting long curves, make relief cuts as you go along.
CIRCLE CUTTING (FIG.V)
1. Adjust the guide assembly to 1/8" above the workpiece.
2. Use both hands while feeding the work into the blade.
Hold the workpiece firmly against the table. Use gentle
pressure. Do not force the work, ALLOW the blade to cut
3. The smallest diameter circle that can be cut is
determined by the width of the blade. For example,
a 1/4" wide blade will cut a minimum diameter of
approximately 1-1/2".
FIG.V
BLADE SELECTION (FIG. W)
CAUTION: Blade teeth are sharp. Use care when handling a
saw blade.
For longest wear and best cutting results, use the correct
blade thickness, width, and temper for the type of material
you will cut.
When sawing small curves and delicate work, use narrow
blades. Otherwise, use the widest blade possible,
For cutting wood and similar materials with this bandsaw,
purchase blades in widths up to 1/2", and a length of 80".
Do not cut ferrous metals with this band saw.
Common causes of blade breakage:
® Poor guide alignment and adjustment,
® Forcing or twisting a wide blade around a short radius.
® Feeding too fast.
» Dull teeth or not enough set.
® Too much blade tension,
® Setting top guide assembly too high above the workpiece.
“ Lumpy or improperly finished braze or weld on the blade.
« Continuous running of blade when not cutting.
FIG. W
Operation Recommended Blade Width
(Inches)
Cross Cutting 1/4, 3/8, 1/2
Mitering 1/4, 3/8, 1/2
Beveling 1/4, 3/8, 1/2
Compound Cutting 1/4, 3/8, 1/2
Circle Cutting See Fig. V
Curve Cutting 1/8, 1/4
BLADE SPEED SELECTION {FIG. X)
This band saw has two speed settings;
1,2600 F.P.M. for normal operation,
2,1410 F.P.M. for operation requiring more control.
RECOMMENDED SPEEDS
f \ 1/2" d \ ro I 2"D 2-1/2" D
Minimum
Circle Diameter
k / /
3ÌS' i 1/4" I 3B " 1/2' Blade Width
FIG. X
SPEED APPLICATION BLADETYPE
2600 FP.M,
1. Basic wood cutting
2. Resawing
I.Skip tooth type
2. Hook tooth type
3. Regular tooth blades
1410 F.P.M.
1. Intricate wood cutting
2. Veneers, tiles,
plastics
3. Nonferrous metals;
brass, copper,
aluminum
15 teeth per inch blades
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