Delta 28-150 Instruction Manual download pdf (Page 12)

ADJUSTING UPPER BLADE GUIDES AND

BLADE SUPPORT BEARING

IMPORTANT: BOTH THE UPPER AND LOWER BLADE GUIDES MUST BE PROPERLY ADJUSTED TO PREVENT

THE BLADE FROM TWISTING DURING OPERATION.

1. DISCONNECT THE MACHINE FROM THE POWER SOURCE.

2. NOTE: Upper blade guard (B) Fig. 27, is shown removed for clarity.

3. Loosen the two screws (C) Fig. 27, and adjust the blade guides (D) as close as possible to the sides of the saw

blade, being careful not to pinch the blade.Then tighten the two screws (C).

4. Loosen screw (E) Fig. 27, and move the guide bracket (F) in or out until the front edge of the guides (D) is just

behind the “gullets” of the blade teeth. Then tighten screw (E).

5. The upper blade support/thrust bearing (G) Fig. 27, prevents the saw blade from being pushed back too far when

cutting. The support bearing (G) should be adjusted approximately 1/32" behind the rear edge of the blade, so the back

edge of the blade overlaps the outside diameter of the ball bearing by approximately 1/8". To adjust, proceed as fol-

lows:

6. DISCONNECT THE MACHINE FROM THE POWER SOURCE.

7. Loosen screw (H) Fig. 27, and slide support bearing (G) in or out until it is approximately 1/32" behind the rear edge

of the saw blade. Then tighten screw (H).

8. The upper blade support bearing (G) Fig. 27, is set on an eccentric shaft. To change position of bearing (G), loosen

screw (H) Fig. 27, and using a straight screwdriver, rotate shaft (J) Fig. 28, until the blade properly overlaps the support

bearing. Then tighten screw (H).

Fig. 27

Fig. 28

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Delta 28-150 Instruction Manual Page 12