Delta 28-190 Instruction Manual download pdf (Page 12)

ADJUSTING UPPER BLADE GUIDES

AND BLADE SUPPORT BEARING

The blade guides must be properly adjusted to prevent

the blade from twisting during operation. The upper

blade guides and blade support bearing should be

adjusted only after the blade is tensioned and tracking

properly. To adjust, proceed as follows:

1. DISCONNECT THE SAW FROM THE POWER

SOURCE.

2. Loosen screw (A) Fig. 21, and remove blade guard

(B) from guide assembly.

3. The upper guide bracket (C) Fig. 22, is assembled to

the lower end of the guide post (D) by screw (E). Loosen

screw (E) and move the guide bracket (C) in or out until

the front edge of the guides (F) are just behind the blade

“gullets” (bottom of saw teeth) while making sure the

guides are flat with the blade then tighten screw (E).

4. The upper blade guides are held in the guide bracket

with set screws (G) Fig. 21. Loosen set screws (G) and

adjust blade guides as close as possible to the sides of

the saw blade being careful not to pinch the saw blade.

Then tighten screws (G).

5. The upper blade support bearing (H) Fig. 21,

prevents the blade from being pushed back too far while

cutting which could damage the set in the saw teeth. The

upper support bearing (H) should be adjusted

approximately 1/64" behind the blade by loosening set

screw (J), moving the support bearing in or out until it is

1/64" behind the back of the blade and tightening set

screw (J).

6. MAKE CERTAIN TO REPLACE BLADE GUARD

THAT WAS REMOVED IN STEP 2.

Fig. 22Fig. 21

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Delta 28-190 Instruction Manual Page 12