Harbor Freight Tools 92683 - Manual (Page 9)

SKU 92683 For technical questions, please call 1-800-444-3353 Page 9
Periodic Maintenance
1) Unplug the Grinder before cleaning or adjusting. Pour the water out by tilting the grinder to the rear.
2) Once a year, place a small amount of lubricating oil in the oil ports on top of the bearing blocks on
each side of the Grinding Wheel. The center screw above each bearing covers the oiling port. The
screw is simply removed and several drops of oil are added periodically.
3) When storing the Grinder, empty it of water, and cover to prevent dirt accumulation.
Changing the Grinding Wheel
Eventually, the Grinding Wheel may require replacement. The Grinding Wheel should be replaced when
it has lost approx. 25% of its diameter. Suitable Grinding Wheels are available from Harbor Freight Tools.
1) Ensure that the replacement Grinding Wheel is no greater than 8” in Diameter nor 1.65” in Width. The
bore must be designed to fit a 15/32” Spindle.
2) Be sure the Grinder is unplugged and turned OFF.
3) Pour the water out by tilting the grinder to the rear.
4) Remove the two outermost screws on each Bearing Block,
and set the Bearing Blocks aside (as shown in the photo at
right).
5) Remove the Grinding
Wheel assembly by lifting it
straight up, as shown in the
photo at left.
6) Remove the Brass
Bearing, V-ring (19), two
Nuts (20), and Flange (21).
You may now slide the old
Grinding Wheel off the Axle
(23). See photo on right.
7) Install the new Grinding Wheel, and replace the Flange
(21) and Nuts (20) as they were before. Do not over
tighten the Nuts. The Grinding Wheel assembly should
then be reassembled, the bearings and gear greased, and carefully put back in place so that the
gear meshes properly and so that both v-rings sit nicely into the groove, creating a good seal.
Replace the Bearing Blocks. When replacing the Bearing Blocks, attention should also be given
to the v-rings to make sure that they are in place. Both Bearing Blocks should be tightened down
enough to provide a good seal.
8) Test the Grinder to ensure that the new Grinding Wheel runs smoothly. If it does not, try loosening
the Nuts (20) and reposition the new Grinding Wheel on the Axle. If, after several tries, this does not
solve the problem, tighten the Nuts and dress the wheel as discussed above.
Bearing Block Oil Port
Nuts (20)
Flange (21)
Brass Bearing
V-ring (19)
Nuts (20)
Flange (21)