CHANGING GRINDING WHEELS (FIG. F, G, G-1, H)

!CAUTION

Turn off and unplug the bench grinder. Use only grinding wheels that measure 8 inches (200 mm) in diameter. This tool has 5/8 inch (15.88 mm) arbors on both sides.

1.Raise the eye shield (1) out of the way and place the spark guard (6) in its highest setting.

2.Loosen the knob (2) and remove the tool rest assembly (3) and carriage bolt (4).

3.Remove the two screws (5) from the left side wheel cover and then remove the outer cover.

Fig. F

6

1

5

ON

4

L

H

 

OFF

 

3 2

4. To prevent wheel rotating, place a wood wedge (7) (not supplied) between the wheel and the wheel cover as shown in Fig. G.

NOTE: Using a metal object, like a screwdriver, is not recommended as it may damage the grinding wheel.

5. Remove the hex nut (8) (as shown in Fig. G), the wheel flange (9) and the wheel (10). (Fig. H)

Fig. G

8

 

7

Loosen

Wood wedge

 

Fig. G-1

7

Wood wedge

8

Tighten

NOTE: The nut on the right side of the grinder has a standard right-hand thread (turn counterclockwise to loosen). The one on the left side has a left-hand thread (turn clockwise to loosen). Both wheel nuts tighten when turning toward the rear of the grinder and loosen when turning toward the front of the grinder.

6.Inspect the wheel (10) for cracks, chips or any other visible damage (other than normal wear) and discard if such damage is found. Inspect the blotter/ cardboard disc for damage. If the blotter is missing or severely damaged, replace it with a piece of thin cardboard or blotter paper cut in the same shape.

NEVER USE A GRINDING WHEEL WITHOUT A BLOTTER.

7.Install the new wheel or other accessory. Make sure both wheel flanges (9) are in place with the concave sides toward wheels. (Fig. H)

8.Place a wood wedge (7) (not supplied) between the wheel and the wheel cover as shown in Fig. G-1. NOTE: Do not overtighten the nut as this can crack the grinding wheel (10).

9.Replace the wheel cover and screws.

10.Adjust the tool rest to 1/8 in. (3.2 mm) away from the wheel and tighten securely.

11.Reattach and adjust the eye shield to a point between your eyes and the wheel.

12.Set the spark guard 1/16 in. (1.6 mm) away from the wheel.

Fig. H

9

 

10

8

9

 

11

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Porter-Cable PCB575BG Changing Grinding Wheels FIG. F, G, G-1, H, Never USE a Grinding Wheel Without a Blotter