Grizzly G0817 Owner's Manual page 58

Motor & Electrical (Continued)
Symptom Possible Cause
Machine has 1. Motor or component loose.
vibration or noisy
operation.
2. Blade at fault.
3. V-belt worn or loose.
4. Motor fan rubbing on fan cover.
5. Motor mount loose/broken.
6. Pulley loose.
7. Machine incorrectly mounted.
8. Motor bearings at fault.
9. Centrifugal switch is at fault.
Operating Machine
Symptom Possible Cause
Blade or teeth break/ 1. Blade tension is incorrect.
crack. 2. Blade is incorrect for application.
3. Excessive feed rate/pressure.
4. Cutting corners too sharply.
5. Blade is dull/weld at fault.
6. Blade is tracking incorrectly.
7. Blade guides/support bearings not adjusted
8. Wheel tires worn or incorrectly installed.
9. Fence or miter slot out of alignment with
10. Bad blade-guide bearings.
Blade slows, 1. Blade contacting table insert.
smokes, shows
overheating or wears 2. Blade guides are worn or misadjusted.
on one side.
3. Blade installed backwards.
4. Too much side pressure when feeding
5. Wheels are out of alignment.
6. Dull, bell-mouthed, or incorrect blade.
7. Fence not parallel with blade.
8. Table top surface is not parallel or square
9. V-belt loose or slipping.
-56-
properly, allowing guides to hit blade teeth.
blade.
workpiece.
to blade.
Possible Solution
1. Inspect/replace damaged bolts/nuts, and retighten
with thread locking fluid.
2. Replace warped/bent/broken blade; replace/
resharpen dull blade (Page 46).
3. Inspect/replace belt(Page 59).
4. Fix/replace fan cover; replace loose/damaged fan.
5. Tighten/replace.
6. Re-align/replace shaft, pulley set screw, and key.
7. Tighten mounting bolts; relocate/shim machine.
8. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
9. Replace.
Possible Solution
1. Adjust blade tension (Page 28).
2. Use correct blade for application (Page 41).
3. Reduce feed rate/pressure.
4. Use a wider arc on outside cuts, or use relief cuts
to make tight inside cuts.
5. Replace blade (Page 46).
6. Adjust blade tracking (Page 30).
7. Adjust blade guides/support bearings properly,
so guides cannot contact teeth during operation
–
(Pages 31 33).
8. Replace or re-install tire.
9. Align table miter slot and fence with blade
(Page 36).
10. Replace blade-guide bearings.
1. Adjust blade guides to eliminate any side pressure
(Page 32). Properly align table (Page 37).
2. Adjust upper blade guides as close to workpiece as
possible.
3. Check blade rotation. Re-install blade if necessary
(Page 46).
4. Feed workpiece straight into blade.
5. Adjust wheels to be coplanar (Page 66).
6. Replace blade (Page 46).
7. Adjust fence parallelism with blade (Page 37).
8. Adjust/shim table/trunnion position until blade and
table are parallel and square (Page 37).
9. Tighten V-belt. Replace if worn or oily. (Page 59).
Model G0817 (Mfd. Since 05/16)