Delta 23-725 Instruction Manual 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.
CHANGING GRINDING WHEELS
DISCONNECT
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).
MACHINE FROM
13
Fig. 19
Fig. 20
E
D
Fig. 21
A
B
C