Troubleshooting - Promac 347V Operating Instructions And Parts Manual

Troubleshooting

Fault
Excessive Blade
Breakage
Premature Blade
Dulling
Bad Cuts
(crooked)
Probable Cause
1. Material loose in vise.
2. Incorrect speed or feed.
3. Teeth too coarse for material.
4. Incorrect blade tension.
5. Saw blade is in contact with work-
piece before the saw is started.
6. Misaligned guides.
7. Cracking at weld.
8. Blade teeth too coarse.
9. Blade speed too high.
10. Inadequate feed pressure.
11. Hard spots in work-piece or scale
on/in work-piece.
12. Work hardening of material
(especially stainless steel).
13. Insufficient blade tension.
14. Operating saw without pressure on
work-piece.
15. Work-piece not square with blade.
16. Feed pressure too fast.
17. Guide bearings not adjusted
properly.
18. Inadequate blade tension.
19. Span between the two blade
guides too wide.
20. Dull blade.
21. Incorrect blade speed.
22. Blade guide assembly is loose.
23. Blade guide bearing assembly
loose.
24. Blade track too far away from
wheel flanges.
25. Guide bearing worn.
1. Clamp work securely.
2. Check Machinist's Handbook for
speed/feed appropriate for setting
the material being cut.
3. Check Machinist's Handbook for
recommended blade type.
4. Adjust blade tension to the point
where the blade just does not slip
on the wheel.
5. Start the motor before placing the
saw on the work-piece.
6. Adjust guides.
7. Longer annealing cycle.
8. Use a finer tooth blade.
9. Try a lower blade speed.
10. Decrease spring tension.
11. Increase the feed pressure (hard
spots). Reduce the blade speed,
increase feed pressure (Scale).
12. Increase the feed pressure by
reducing spring tension.
13. Increase tension to proper level.
14. Do not run blade at idle in/on
material.
15. Adjust vise so it is square with the
blade. (Always clamp the work-
piece tightly in the vise).
16. Decrease pressure.
17. Adjust guide bearing clearance to
0.001 inch (0.002 inch maximum).
18. Gradually increase blade tension.
19. Move blade guide bracket closer to
work.
20. Replace blade.
21. Check blade speed.
22. Tighten blade guide assembly.
23. Tighten blade guide bearing
assembly.
24. Adjust blade tracking.
25. Replace worn bearing.
14
Suggested Remedy