Delta 40-570 Instruction Manual download pdf (Page 12)

CHOICE OF BLADE AND SPEED

Your scroll saw will accept a wide variety of 5" flat end

blades and can be operated at any speed from 600 to

1650 cutting strokes per minute. Consider the following

as a general guideline for selecting a blade and

operating speed.

1. Use a finer blade for cutting thin workpieces, for

hard materials, or when a smoother cut is required.

2. Use a coarser blade for cutting thick workpieces,

when making straight cuts or for medium to soft

materials.

3. Use a blade that will have 2 teeth in the workpiece at

all times.

4. Most blade packaging is marked with the size of the

wood the blade is intended to cut and the minimum

radius which can be cut with that blade.

5. Slower speeds are generally more effective than

faster speeds when using thin blades and making

intricate cuts.

6. Always start at a slow speed and gradually increase

the speed until the optimum cutting speed is obtained.

LUBRICATION

To keep the scroll saw operating at peak efficiency, we

recommend that a simple maintenance procedure be

performed after each 20 hours of use (approximately)

as follows:

1. MAKE CERTAIN THE MACHINE IS DISCON-

NECTED FROM THE POWER SOURCE.

2. Tilt the table 45° to the left as shown in Fig. 28.

3. Remove four rubber grommets (A) Fig. 29 that

cover the lubrication access holes.

4. Lubricate the pivot points in each of the four access

holes with a few drops of light machine oil as shown in

Fig. 30.

5. Reassemble the four grommets as shown in Fig. 29,

to machine.

6. Apply lightweight grease or anti-sieze to lubricate

the tensioning lever (A) Fig. 15 where it pivots on the

upper chuck .

Fig. 28

Fig. 29

Fig. 30

BLADE BREAKAGE

Blade breakage is usually caused by one or more of the

following:

1. Bending the blade during installation.

2. Improper blade tension.

3. Improper blade selection for the work being cut.

4. Forcing the work into the blade too rapidly.

5. Cutting too sharp a turn for the blade being used.

6. Improper blade speed.

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Delta 40-570 Instruction Manual Page 12

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