Fig. 28

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, do the following:

1.DISCONNECT TOOL FROM POWER SOURCE

C B

2. Make sure that the bottom blade guides and support bearings are clear of the blade.

A

3. Check the upper blade guide assembly. The blade guides (A)

 

 

 

 

 

 

 

 

 

 

 

Fig. 27 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. 28, so that the front edge of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 27

 

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. 28. When

 

 

 

 

 

 

 

 

 

 

 

the guides (A) are set properly, tighten thumb screw (C).

 

 

 

 

 

 

 

 

 

 

 

5. Two set screws (B) Fig. 28 hold the upper blade guides (A) in

 

 

 

 

 

 

 

 

 

 

 

place. Loosen the set screws (B) to move the guides (A). Place

 

 

 

 

 

 

 

 

 

F

them as close as possible to the side of the blade. (Be careful not

 

G

 

 

 

 

 

 

 

 

 

to pinch the blade). Tighten the screws (B).

 

 

 

 

 

H

 

E

 

 

 

 

 

 

 

6. The upper blade support bearing (E) Fig. 28 prevents damage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to the set in the saw teeth by keeping the blade from being

 

 

D

 

 

 

 

 

 

C

pushed too far toward the back. The support bearing (E) should be

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

B

set 1/64" behind the blade by loosening the thumb screw (F) and

 

 

 

 

 

 

 

 

 

 

 

 

turning the knurled knob (G) to move the support bearing (E) in or

 

 

A

 

 

 

A

out.

 

 

 

 

 

 

 

 

 

 

 

7. Adjust the blade support bearing (E) so that the back edge of the blade overlaps the outside diameter of the ball bearing by

about 1/16". The bearing (E) is set on an eccentric. To change the position, remove the screw (H) and bearing (E) Fig. 28. Loosen the thumb screw (F), back out the knurled knob from the set screw. Remove the hex shaft from the hole, and rotate it to move the eccentric for the bearing.

8.When the blade guide wears to a point that it cannot be adjusted close to the blade, loosen screw (B) Fig. 28 and reverse the blade guides (A) Fig. 28.

ADJUSTING LOWER BLADE GUIDES AND BLADE SUPPORT BEARING

Adjust the lower blade guides and blade support bearing after the the upper guides and bearing have been adjusted.

1.DISCONNECT TOOL FROM POWER SOURCE.

2.Adjust the front edge of the guide blocks (B) so that they are just behind the “gullets” of the saw teeth. Turn the knurled knob (C) Fig. 29 to make this adjustment. Check the support bearing. It should not be touching the back of the blade.

3.Loosen the two screws (A) Fig. 29. Move the guides (B) as close as possible to the side of the blade, being careful not to pinch the blade. Tighten screws (A).

3.Turn the other knurled knob (E) to adjust the lower blade support bearing (D) Fig. 29 so that it is about 1/64" behind the back of the blade.

B B

A A

E

CD

Fig. 29

CHANGING THE BLADES

1.DISCONNECT TOOL FROM POWER SOURCE.

2.Open the upper and lower wheel guards.

3.Release tension on the saw blade.

4.Loosen the table alignment pin with a wrench and pull out. Remove table insert.

5.Take the blade off the wheel, and guide it through the slot in the table.

6.Install the new blade by reversing the procedure. (Table alignment pin should be seated by gently tapping it

with a hammer).

11

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Image 11
Epson 28-293 instruction manual Adjusting the Upper Blade Guides and Blade Support Bearing