Listed below are problems, which may be encountered whilst grinding. Possible corrections are used advisedly here. It is practically impossible to establish hard and fast rules for turning out perfect grinding. There are many variables, which must be correctly attuned and an apparently irrelevant one may prove to be cause of trouble experienced. Also, the same cause may produce a varied number of grinding problems.
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Scratch Marks |
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VIBRATION
Loose levelling screws.
Set all screws so they bear evenly on floor.
Grinding wheel out of balance.
Inspect spindle and collet—remove burrs if present. Use only one standard or blotting paper gasket under each flange.
Make sure balancing stand is level both ways before attempting to balance wheel. Always balance wheel in following sequence:
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True wheel.
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Run wheel long enough to throw off coolant.
True spots out of wheel, balance and redress.
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Balance wheel on same mount as used for grinder.
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True wheel after mounting on spindle
Motor bearing defective or armature out of balance.
Renew motor bearings or balance armature.
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Vibration |
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Chatter Marks |
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Low Ends |
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Low Centre |
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Not Straightened |
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Work Out of Round |
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Faulty Sizing |
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Wheel Loading |
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Wheel Glazed |
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Wheel Grading |
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Wheel Breakage |
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Maintenance Tips |
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