TRACKING THE BLADE

DISCONNECT MACHINE FROM POWER SOURCE.

BEFORE TRACKING THE BLADE, MAKE SURE THAT THE BLADE GUIDES AND BLADE SUPPORT BEARINGS ARE CLEAR OF THE BLADE.

After applying tension to the blade, rotate the upper wheel slowly forward by hand and observe the blade’s movement. The blade (A) Fig. 52 should travel in the center of the upper tire. If the blade creeps toward the front edge, loosen the wing nut (B) Fig. 51, and turn the thumb screw (C) clockwise. This action draws the blade toward the center of the tire. If the blade creeps toward the back edge, turn the thumb screw in the opposite direction. Adjust the thumb screw (C) Fig. 51 only a fraction of a turn each time.

NEVER TRACK THE BLADE WHILE

THE TOOL IS RUNNING.

After the blade is tracking in the center of the tires, tighten the wing nut (B) Fig. 51.

VERTICAL ADJUSTMENT OF THE UPPER BLADE GUIDE AND GUARD ASSEMBLY

DISCONNECT MACHINE FROM POWER SOURCE.

Adjust the blade guides and bearings according to the following instructions.

Set the upper blade guide and guard assembly (A) Fig. 53 as close as possible to the top surface of the workpiece. Loosen the lock knob (B) and move the guide assembly (A) to the desired position.

ADJUSTING THE UPPER BLADE GUIDES AND BLADE SUPPORT BEARING

Adjust the upper blade guides and blade support bearings ONLY AFTER the blade has the correct tension and is tracking properly. To adjust, proceed as follows:

1. DISCONNECT MACHINE FROM POWER SOURCE

2.Make sure that the bottom blade guides and support bearings are not touching the blade.

3.Check the upper blade guide assembly. The blade guides (A) Fig. 54 should be parallel to the blade. To adjust, loosen the screw (B) and rotate the complete guide assembly (C). When the blade guides are parallel with the blade, tighten the screw (B).

4.Adjust the guides (A) Fig. 55 so that the front edge of the guides are just behind the “gullets” of the saw teeth. The complete guide block bracket can be moved in or out by loosening the thumb screw (C) and turning the knurled knob (D) Fig. 55. When the guides (A) are set properly, tighten thumb screw (C).

A

Fig. 52

B

A

Fig. 53

CB

A

Fig. 54

20

Page 20
Image 20
Delta 28-348 instruction manual Tracking the Blade, Never Track the Blade While Tool is Running