OPERATION & TROUBLESHOOTING
Operating the bench grinder
The bench grinder is designed for hand held grinding, sharpening, and cleaning operations. ALWAYS WEAR EYE PROTECTION! Hot sparks
are produced during grinding operations.
1. The power switch must be in the "OFF" position.
2. Make sure the spark guards and tool rests are set 1/16” from the grinding wheels. Before starting the grinder, turn the grinding wheel by
hand one full turn to make certain the wheels to do not come into contact with the spark guards or tools rests.
3. Stand to the side of the bench grinder and plug in the power cord into the correct power source.
4. Remain to the side of the bench grinder and turn it "ON".
5. Allow the grinding wheels to come up to a steady speed for at least one minute.
6. Adjust the eye shields as needed and place the workpiece on the appropriate tool rest for the desired operation.
7. Slowly move the workpiece towards the grinding wheel until it lightly touches. Move the workpiece back and forth across the front surface
of the grinding wheel removing the amount of material desired. NEVER GRIND ON THE SIDES OF THE GRINDING WHEELS.
8. Insert the hot end of the workpiece into the water in the quench tray to cool it as needed.
9. When finished grinding turn off the machine by pushing the large STOP paddle switch. CAUTION: It will take a few minutes for the
grinding wheels to come a complete stop.
Problem
Motor will not start.
Motor overheats.
Wavy condition on surface
of workpiece.
Lines on surface of workpiece.
Burning spots or cracks in
the workpiece.
Probable cause
1. Low voltage.
2. Open circuit in motor or loose connections.
1. Motor overloaded.
1. Machine vibrating.
2. Workpiece not being held firmly.
3. Wheel face uneven.
4. Wheel is too hard.
1. Impurity on wheel surface.
2. Workpiece not being held tightly.
1. Improper type of grinding wheel.
2. Improper feed rate.
Probable solution
1. Check power line for proper voltage.
2. Inspect all lead connections on motor for
loose or open connections.
1. Reduce load on motor.
1. Make sure machine is securely mounted on a
solid surface.
2. Use a holding device to firmly retain the
workpiece.
3. Dress the grinding wheel.
4. Use softer wheel, or reduce the feed rate.
1. Dress the grinding wheel.
2. Use a holding device to firmly retain the
workpiece.
1. Try a wheel which is softer style or a coarser
grit.
2. Slow down the rate of movement of the
workpiece into wheel.
