Changing The Grinding Wheels - pro.point 8712127 User Manual

8712127 6 in. BENCH GRINDER WITH PCB LCD READOUT

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 five bolts (#1) attaching the protective side
cover (#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 (#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 (#3), outer flange (#4) and the old
wheel (#5).
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.
8. Replace the side cover. Reinsert the three bolts and tighten
the side cover in place.
9. Adjust the tool rest (#14) and spark shield guard (#15)
distance from the grinding wheel. Maintain a separation of
1/16 in. or less as the wheel diameter decreases from use.
10. Adjust the eye shield position over the grinding wheel.
11. Rotate the wheel by hand to check free movement and
proper adjustments.
Many grinding wheels use removable and adjustable arbor
bushings to allow adaptation to various machine arbor
diameters. Save this bushing for future use if not needed to
install the replacement wheel.
20 For technical questions call 1-800-665-8685
V1.0