Harbor Freight Tools 94071 - Manual (Page 13)

SKU 94071 For technical questions, please call 1-800-444-3353 PAGE 13
6. Once the grinding process is competed, turn the Power Switch (7) of the Grinder
to its “OFF” position. Do not press against the Buffing Wheel (39) or Grinding
Wheel (40) to stop them from spinning. Allow the Wheels to completely stop on
their own. Then, disconnect the Power Cord/Plug (13) from its electrical
outlet. (See Figure F.)
7. Always make sure the Grinder is kept in an area out of reach of children and
other unauthorized people.
INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! Always turn the Grinder’s Power Switch (7) to its “OFF”
position and unplug the tool from its electrical outlet before performing any
inspection, maintenance, or cleaning.
2. Before each use: Inspect the general condition of the Grinder. Check for
misalignment or binding of moving parts, loose, cracked or broken parts,
damaged Power Cord, and any other condition that may affect its safe operation.
If a problem occurs with the Grinder, have the problem corrected before further
use. Do not use damaged equipment.
3. To install a Buffing Wheel (39): Note: Use both Spanner Wrenches when
installing and removing Buffer and Grinding Wheels. To install a new Buffing
Wheel (39), remove the Seal Ring (34) from the Grinder. Unscrew and remove
the Hex Nut (36). IMPORTANT: The Hex Nut on the Buffing Wheel is a LEFT
threaded Hex Nut. To remove, turn the Hex Nut
clockwise . To tighten, turn the
Hex Nut counterclockwise . Remove the Left Safety Guard Cover (35). Remove
the Flange (37) and Shaft Sleeve (38). Then, remove the old Buffing Wheel.
Install the new Buffing Wheel. Then, replace the Shaft Sleeve, Flange, Left
Safety Guard Cover, Hex Nut, and Seal Ring. (See Assy. Diagram.)
4. To install a Grinding Wheel (40): To install a new Grinding Wheel (40), remove
the Seal Ring (34) from the Grinder. Unscrew and remove the Hex Nut (41).
IMPORTANT: The Hex Nut on the Grinding Wheel is a RIGHT threaded Hex Nut.
To remove, turn the Hex Nut
counterclockwise . To tighten, turn the Hex Nut
clockwise . Remove the Right Safety Guard Cover (42). Remove the Flange (37)
and Shaft Sleeve (38). Then, remove the old Grinding Wheel. Install the new
Grinding Wheel. Then, replace the Shaft Sleeve, Flange, Right Safety Guard
Cover, Hex Nut, and Seal Ring. (See Assy. Diagram.)
5. CAUTION! When replacing the Buffing Wheel (39) and/or Grinding Wheel
(40), make sure each wheel has a minimum 3500 RPM rating. When replacing
the Grinding Wheel (40), do not overtighten the Hex Nut (41). Excessive
tightening can cause the Grinding Wheel to crack during operation.