Grizzly G0812 Owner's Manual page 54

Operation
Symptom Possible Cause
Vibration when 1. Loose or damaged blade.
operating or cutting.
2. Worn wheel bearing.
3. Bent or dull blade.
4. Machine component loose.
5. Wheels worn or incorrectly installed.
6. Wheel appears bent.
7. Gearbox at fault.
Ticking sound when 1. Blade weld contacting blade guides.
saw is running.
2. Blade weld may be failing.
3. Blade teeth missing or broken.
Machine or blade 1. Feed rate too fast; blade speed too low.
bogs down in cut.
2. V-belt slipping; oil/grease on belt; improper
tension.
3. Blade loading up.
4. Blade dull.
5. Blade not supported/tracking properly.
6. Blade TPI incorrect.
7. Blade tension too low.
8. Material requires cutting fluid/lubrication.
Cuts not square, 1. Angle stops on swivel base set incorrectly.
angle incorrect.
2. Blade not square to table.
Blade dulls 1. Blade improperly broken in.
prematurely, or
metal sticking to the
2. Blade gullets loading up with chips.
blade.
3. Blade TPI too fine; teeth load-up and
overheat.
4. Incorrect coolant mixture for workpiece/cut.
Blade wears on 1. Blade guides worn or mis-adjusted.
one side or shows
2. Blade support inadequate.
overheating.
3. Dull/incorrect blade.
4. Incorrect coolant mixture for workpiece/cut.
5. Blade bell-mouthed.
Blade tracks 1. Feed rate too fast/wrong TPI.
incorrectly, or
2. Blade tracking requires adjustment.
comes off wheels.
3. Blade guides need adjustment.
4. Blade bell-mouthed.
Cuts crooked. 1. Feed rate too fast; blade speed too low.
2. Guide bearings out of adjustment; guide
arm too far from workpiece.
Blade keeps moving 1. Upper limit switch not engaged/at fault.
or headstock not
raising after cut.
Headstock not 1. Lower limit switch position incorrect.
raising to desired
height.
-52-
Possible Solution
1. Tighten or replace blade (Pages 26–27).
2. Check/replace wheel bearing.
3. Replace blade (Page 26).
4. Fix/replace fan cover; replace loose/damaged fan.
5. Replace wheels; adjust blade tracking (Page 28).
6. Check/replace wheel/wheelbearing.
7. Rebuild gearbox for bad gear(s)/bearing(s).
1. Grind blade weld down flush.
2. Cut and reweld blade, or replace blade (Page 26).
3. Replace blade (Page 26).
1. Reduce feed rate (Page 32) or increase blade
speed (Page 29).
2. Tighten/clean/replace V-belt (Page 47).
3. Install blade with fewer TPI/ different style of teeth
(Page 24).
4. Replace blade (Page 26).
5. Adjust guides (Page 37), tracking (Page 28).
6. Use blade with at least 3 teeth contacting material
at all times (Page 24).
7. Clean wheels, increase blade tension (Page 27).
8. Use applicable coolant/lubricant.
1. Adjust angle stops (Page 58).
2. Adjust blade square to table (Page 56).
1. Replace blade (Page 26); complete blade break-in
procedure (Page 29).
2. Use blade with larger gullets.
3. Use coarser-tooth blade; adjust feed rate
(Page 32), adjust blade speed (Page 29); make
sure blade brush works (Page 54).
4. Use correct coolant mixture.
1. Re-adjust/replace.
2. Tighten blade guide close to workpiece as possible.
3. Replace blade (Page 26).
4. Use correct coolant mixture.
5. Replace blade Page 26).
1. Reduce feed rate/decrease blade TPI (Page 32).
2. Adjust blade tracking (Page 28).
3. Adjust blade guides (Page 55).
4. Install new blade (Page 26); regularly de-tension
from blade when not in use (Page 27).
1. Reduce feed rate/increase blade speed (Page 32).
2. Re-adjust/replace (Page 55).
1. Adjust/replace upper limit switch (Page 57).
1. Adjust lower limit switch position (Page 57).
Model G0812 (Mfd. Since 2/16)