Southbend SB1023 - Manual (Page 37)

For Machines Mfg. Since 8/09 Model SB1023
-35-
T R O U B L E S H O O T I N G
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 25).
2. Grinding wheel is out of balance or
damaged.
2. Remove, and ring test, and balance the grinding
wheel (Page 20 & 26).
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
burrs 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 taper high
spots or dings, and reinstall wheel and hub (Page
22).
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 (Page 30).
10. Headstock is loose. 10. Tighten column gib (Page 32).
11. Grinding wheel has varying
densities, or is of poor quality.
11. Replace grinding wheel with acceptable brand
(Page 20).
12. Table and handwheel have lash. 12. Adjust cross feed leadscrew halfnut (Page 32).
13. Table is loose. 13. Adjust cross feed gib (Page 32).
14. Grinding operation requires
coolant.
14. Install aftermarket coolant kit.
15. Coolant is incorrect or incorrectly
mixed.
15. Refer to coolant manufacturer's workpiece verses
coolant type recommendations and correct coolant.
16. Bad motor or spindle bearings. 16. Replace motor or replace bearings.