Delta 28-150 Instruction Manual download pdf (Page 13)

ADJUSTING LOWER BLADE GUIDES AND

BLADE SUPPORT BEARING

The lower blade guides and blade support bearing should be adjusted at the same time as the upper guides

and support bearings as follows:

1. DISCONNECT THE MACHINE FROM THE POWER SOURCE.

Fig. 29

Fig. 30

2. Loosen two screws (A) Fig. 29, and move guides (B) as close as possible to the sides of the blade, being

careful not to pinch the blade between the guides. Then tighten two screws (A).

3. The front edge of guide blocks (B) Fig. 29, should be adjusted so they are just behind the “gullets” of

the blade teeth by loosening screw (C), and moving assembly (D) in or out as necessary. Then tighten screw

(C).

4. The lower blade support bearing (E) Fig. 29, should be adjusted to support the rear of the blade during

the cutting operation and also prevent the blade from being pushed too far to the rear which could damage

the blade teeth. The support bearing (E) Fig. 29, should be set about 1/32" behind the blade by loosening

screw (F) Fig. 29, and moving shaft (G) in or out. Then tighten screw (F).

5. The lower blade support bearing (E) Fig. 29, should also be adjusted so the back edge of the blade over-

laps the outside diameter of the ball bearing by approximately 1/8". The blade support bearing (E) is set on

an eccentric shaft.To change position of bearing (E), loosen screw (F) Fig. 29, and rotate shaft (G) Figs. 29

and 30, using a straight screwdriver until the blade properly overlaps the support bearing. Then tighten

screw (F) Fig.29.

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Delta 28-150 Instruction Manual Page 13