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For Machines Mfg. Since 8/09 Model SB1029
-37-
TROUBLESHOOTING
Symptom Possible Cause Possible Solution
Vibration when
grinding, poor
surface finish,
or incorrect final
dimensions.
1.
Grinding wheel is out-of-round or is
loaded up with material.
1.
Dress grinding wheel to make concentric, and to the
required grit level (Page 28).
2.
Grinding wheel is out of balance or
damaged.
2.
Remove and ring test (Page 23), and balance the
grinding wheel (Page 29).
3.
Missing or torn grinding wheel
paper washers.
3.
Remove and replace paper washers, dress and
rebalance grinding wheel.
4.
Incorrect grinding wheel hardness
or grit rating.
4.
Match wheel grade and grit rating with workpiece
hardness.
5.
Improperly installed magnetic
chuck.
5.
Stone table and chuck surfaces, and remove all burs
and foreign material from mating surfaces, and
reinstall the chuck.
6.
Workpiece is loose.
6.
Replace or repair chuck for poor holding power.
7.
Wheel hub not installed onto
spindle shaft correctly.
7.
Remove wheel and hub assembly, stone tapers, and
reinstall wheel and hub (Page 26).
8.
Loose machine component.
8.
Inspect all machine connections, and tighten any
loose fasteners.
9.
Ways or leadscrews are out of
lubrication or contaminants have
loaded up on the ways.
9.
Remove table, clean and relubricate the ways and
ball bearings. Service oil system and readjust oil
flow (Page 33).
10.
Grinding wheel has varying
densities, or is of poor quality.
10.
Replace grinding wheel with acceptable brand
(Page 24).
11.
Table and handwheel have lash.
11.
Adjust table/handwheel lash (Page 35).
12.
Bad motor or spindle bearings.
12.
Replace motor or replace bearings.
13.
Grinding operation requires
coolant.
13.
Install aftermarket coolant kit.
14.
Coolant is incorrect or incorrectly
mixed.
14.
Refer to coolant manufacturers workpiece verses
coolant type recommendations and correct coolant.