SYMPTOM
Excessive blade breakage
Premature blade dulling
POSSIBLE CAUSE(S)
1.Material not secure on table
2.Incorrect speed or feed
3.Blade too coarse for material
4.Incorrect blade tension
5.Teeth in contact with work before
sawing
6.Blade rubs on wheel flange
7.Misaligned guides
8.Blade too thick for wheel diameter
9.Cracking at weld
1.Blade too coarse
2.Excessive blade speed
3.Inadequate feed pressure
4.Hard spots or scale in or on material
5.Work hardening of workpiece
6.Blade installed backwards
CORRECTIVE ACTION
1.Squarely place work on table
2.Check Blade Speed (page 7)
3.Use finer pitch blade
4.Tension blade properly; see "Operation"
5.Place blade in contact with work after saw is started and has reached full speed
6.Adjust wheel alignment properly
7.Adjust blade guides properly
8.Use thinner blade
9.Replace blade
1. | Use finer tooth | blade | |
2. | Try lower speed |
| |
3. | Gently increase | pressure | |
4. | Reduce | speed; | increase rate of feed for |
| scale and change blades for hard spots | ||
5. | Increase | rate of feed | |
6. | Remove | blade, | twist inside out and reinstall |
| blade |
|
|
Crooked cuts
Rough cuts
Blade is twisting or unusual wear on side/back of blade
7, Insufficient blade tension
1.Work not square
2.Rate of feed too great
3.Blade guides not adjusted properly
4.Insufficient blade tension
5.Upper blade guide too far from workpiece
6.Dull blade
7.Incorrect speed
8.Blade guide assembly loose or blade thrust bearing loose
1.Too much speed or feed
2.Blade too coarse
1.Cut is binding blade
2.Blade guides or bearing worn
3.Blade guides or bearings not adjusted properly
4.Blade guide brackets loose
7. Tension blade properly; see "Operation" |
1.Use rip fence; adjust tilt of table at 90° to blade
2.Reduce rate of feed
3.Move both guide blocks within 0.002" from blade (use gauge)
4.Tension blade properly; see "Operation"
5.Adjust upper guide to just clear workpiece by W'
6.Replace blade
7.Check Blade Speed; see page 7 for recommended speeds
8.Tighten blade thrust bearing within 0.002" behind blade back
1.Reduce speed or feed
2.Replace with finer blade
1.Decrease feed pressure
2.Replace
3.Adjust blade guides; see "Operation"
4.Tighten properly
Teeth ripping from blade | 1. Teeth | too coarse | for work | |
| 2. | Rate | of feed too | great |
| 3. | Vibrating workpiece | ||
| 4. | Teeth | filling with | material |
1.Use blade with finer teeth
2.Decrease feed rate
3.Hold workpiece firmly
4.Use blade with coarser teeth
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