Delta 23-725 Instruction Manual download pdf (Page 13)

DRESSING A GRINDING WHEEL

When dressing a grinding wheel, use a suitable silicone

carbide stick type dresser or the wheel dresser wrench

provided with the grinder, as shown in Fig. 19. Bring the

dresser forward on the tool rest until it just touches the

high point on the face of the wheel and dress the wheel

by moving the dresser back and forth. Repeat this

operation until the face of the grinding wheel is clean

and the corners of the wheels are square.

Fig. 19

CHANGING GRINDING WHEELS

DISCONNECT MACHINE FROM

POWER SOURCE BEFORE CHANGING

GRINDING WHEELS.

1. When changing wheels, remove the three screws (A)

Fig. 20, attaching the side covers to the grinder and

remove the side cover (B).

2. To prevent shaft rotation, place a wedge between

the grinding wheel (C) Fig. 21, and the tool rest (D).

NOTE: Facing the front of the grinder: to replace the

wheel on the left side of the grinder, turn the arbor nut

(E) Fig. 21, clockwise to loosen; counterclockwise to

tighten the arbor nut.

3. To replace the grinding wheel on the right, turn the

arbor nut (E), counterclockwise to loosen; clockwise to

tighten the arbor nut.

4. The arbor bushing should be saved, for future use, if

the replacement wheel does not use the bushing.

DO NOT OVERTIGHTEN WHEEL NUTS

WHEN INSTALLING GRINDING WHEELS.

TIGHTEN WHEEL NUT ENOUGH TO DRIVE THE WHEEL

AND PREVENT SLIPPAGE, (APPROXIMATELY 5-7

ft/lbs).

Fig. 20

Fig. 21

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Delta 23-725 Instruction Manual Page 13