Jet AB-1012W, Инструкция по эксплуатации и каталог запасных частей

Страница: 25 / 52

25
18.0 Troubleshooting
Fault Probable Cause Suggested Remedy
Excessive blade
breakage
Incorrect blade speed or feed rate.
Check Machinery’s Handbook for
speed/feed appropriate for the material
being cut.
Teeth too coarse for material.
Check Machinery’s Handbook for
recommended blade type.
Incorrect blade tension.
Adjust hydraulic setting for proper blade
tension.
Blade rubs on wheel flange. Adjust blade tracking.
Misaligned guides. Adjust guides.
Cracking at weld. Blade requires longer annealing cycle.
Premature blade dulling Blade teeth too coarse. Use a finer tooth blade.
Blade speed too fast. Reduce blade speed.
Inadequate feed pressure. Increase feed rate.
Hard spots in workpiece or scale on/in
workpiece.
Increase feed pressure (hard spots).
Reduce speed, increase feed pressure
(scale).
Work hardening of material. Increase feed pressure.
Insufficient blade tension. Increase tension to proper level.
Bad cuts (out-of-square)
Workpiece not square with blade.
Make sure vise is square with blade. Work
must be clamped tightly in vise.
Feed pressure too fast. Decrease feed pressure.
Guide bearings not adjusted properly.
Adjust guide bearing clearance to 0.001
inches (0.002 inch max.).
Inadequate blade tension. Gradually increase blade tension.
Span between the two blade guides too
wide.
Move guide post closer to the work.
Dull blade. Replace blade.
Incorrect blade speed. Check blade speed.
Blade guide assembly is loose. Tighten blade guide assembly.
Blade guide bearing assembly is loose. Tighten blade guide bearing assembly.
Blade tracks too far from wheel flanges. Adjust blade tracking.
Guide bearing worn. Replace worn bearing.
Bad cuts (rough) Blade speed too high for feed pressure. Reduce blade speed.
Blade is too coarse. Replace with finer blade.
Blade is twisting Blade is binding in the cut. Decrease feed pressure.
Blade tension too high. Decrease tension on blade.