Delta 638518-00 Adjusting Blade Tension, Tracking the Blade, Adjusting Upper Blade Guide Assembly

ADJUSTING

BLADE TENSION

Blades of 1/8", 1/4", and 3/8" in width by 59-1/2" in length are available for use with your band saw. NOTE: The blade tension must be adjusted to accommodate different blade widths in order to provide proper blade tracking, cutting performance, and blade life.

DISCONNECT MACHINE FROM POWER SOURCE.

1.After the desired blade is assembled to the two wheels, turn tension knob (A) Fig. 19, clockwise until spring (B) begins to compress.

2.Turn tension knob (A) Fig. 19, an additional 2-1/2 turns for 1/8" wide blades; 3 turns for 1/4" wide blades; and 4 turns for 3/8" wide blades.

3.A chart (C) Fig. 19, is located at the rear of the band saw. This chart shows blade size, and the minimum radius that can be cut with each size blade.

TRACKING THE BLADE

DISCONNECT MACHINE FROM POWER

SOURCE.

1.Before tracking the blade, make sure the blade guides and blade support bearings are clear of the blade so as not to interfere with the tracking adjustment. Also make sure that the blade is tensioned properly. (Refer to section “ADJUSTING BLADE TENSION”).

2.Open the hinged door (C) Fig. 20.

3.Rotate upper wheel (A) Fig. 20, clockwise by hand and check to see if the blade (B) rides true on the approximate center of the two wheels.

4.If an adjustment is necessary, SLIGHTLY turn blade tracking knob (D) Fig. 19, clockwise to move the blade to the rear, and counterclockwise to move the blade to the front. NOTE: Turn the blade tracking knob (D) in small intervals to adjust the blade tracking.

ADJUSTING UPPER BLADE GUIDE ASSEMBLY

The upper blade guide assembly (A) Fig. 21, should always be no more than 1/8" above or as close as possible to the top surface of the workpiece being cut. Loosen knob (B) Fig. 21, rotate knob (C) and position the guide assembly (A) to the desired position. Then tighten knob (B).

A

B

C

D

Fig. 19

C

B

A

Fig. 20

C B

A

Fig. 21

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