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Operation
Symptom
possible Cause
Wavy pattern on
1. Machine vibrating.
workpiece surface.
2. Workpiece loose in clamping device.
3. Wheel face is uneven.
lines on workpiece
1. impurity on wheel surface.
surface.
2. Workpiece loose in clamping device.
Burned spots
1. improper type of grinding wheel.
or cracks in
2. Feed rate too slow.
workpiece.
3. depth of cut too great.
4. Workpiece overheating.
Wheel dulls quickly,
1. depth of cut too great.
grit falls off.
2. Wheel exposed to moisture.
3. Wheel dressed incorrectly.
4. defective wheel bonding.
Wheel clogs and
1. Feed rate too slow.
workpiece shows
2. Wheel dressed incorrectly.
burn marks.
3. Workpiece incorrect material.
Workpiece is
1. Workpiece not properly clamped.
ground unevenly.
2. Wheel
impurities.
3. Wheel is damaged.
-32-
dressed
incorrectly
or
possible Solution
1. Shim/tighten mounting hardware.
2. Correctly re-clamp the workpiece.
3. dress the wheel (Page 26).
1. dress the wheel (Page 26).
2. Correctly re-clamp the workpiece.
1. Use the correct type of grinding wheel (Page 27).
2. increase feed rate.
3. reduce depth of cut; take multiple light passes.
4. grind in short durations and allow workpiece to cool
in between.
1. reduce depth of cut; take multiple light passes.
2. Store wheel away from moisture; replace wheel.
3. Correctly dress the wheel (Page 26).
4. replace wheel.
1. increase feed rate.
2. Correctly dress the wheel (Page 26).
3. grind ferrous materials only.
1. properly re-clamp workpiece.
has
2. Correctly dress the wheel (Page 26).
3. replace wheel; check new wheel before using
(Page 25).
Model g0688 (Mfg. Since 9/08)
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