Power Fist 8706145 Manuel De L'utilisateur page 16

8706145
WHEEL DRESSING
A grinding wheel may become unbalanced due to irregular wear or it is loaded
with ground material. The grinding wheel must be trued and dressed.
Truing or dressing the wheel is best done using a star-wheel dresser, a silicon
carbide stick type dresser or a diamond faced dressing tool.
Dress the wheel by moving the dresser forward on the tool rest until it just
touches the highpoint on the face of the wheel, then dress the wheel by moving
the dresser back and forth across the wheel face.
Repeat this procedure until the face of the grinding wheel is clean and the
corners of the wheels are square.
CHANGING THE GRINDING WHEELS
WARNING! Use only grinding wheels rated for 3,450 RPM or higher with a
1/2 in. arbor hole and the appropriate sized bushing. Never use a grinding
wheel rated lower than 3,450 RPM or attempt to machine an undersized
wheel to fit the arbor. The grinding wheel may fragment during grinding
and cause an injury.
1. Prevent the shaft from rotating by placing a wedge between the wheel and
the tool rest.
2. Remove the three screws (Fig. 2-1) attaching the protective side cover (Fig. 2-2)
to the grinder; then remove the side cover.
3. Facing the front of the bench grinder: to replace the
wheel on the left side, turn the arbor nut (Fig. 2-3)
clockwise to loosen and counterclockwise to tighten.
4. To replace the wheel on the right side, turn
counterclockwise to loosen and clockwise to tighten.
5. Remove the arbor nut (Fig. 2-3), outer flange (Fig. 2-
4) and the old wheel.
6. Install the replacement wheel and outer flange on the
shaft. Make sure the wheel is a tight fit on the shaft.
7. Replace the arbor nut and tighten enough to drive the
wheel and prevent slippage. Excessive tightening can
cause the wheel to crack prior to or during operation.
16
6 in. Bench Grinder
For technical questions call 1-800-665-8685
V4.0
Fig. 2