Delta 20-330 Manuel d'instructions télécharger pdf (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.

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Delta 20-330 Manuel d'instructions Page 19