Problem
|
Possible Cause
|
Advice
|
| Saw blade keeps breaking prematurely |
- Blade tension too high
- Guides tight or maladjusted
- Speed too low for feed rate
- Speed too high
- Cracking at the weld
- Blade too thick for wheel diameter
- Pitch too coarse
|
- Reduce tension
- Alter adjustment
- Increase speed or decrease feed
- Reduce speed
- Check welding technique
- Use lighter gauge
- Use finer pitch
|
| Blade starts to camber and cuts to one side - running out of
square |
- Saw guides too far apart
- Feed pressure too high
- Roller guides not adjusted
- Band pitch too fine
- Set removed by guides
- Blade riding on wheel flange
- Hard inclusion in material
|
- Adjust closer to material
- Reduce pressure
- Adjust correctly
- Use coarser pitch
- Adjust or chamfer guides
- Adjust wheel tracking
- Reduce cutting rate
|
Vibration whilst cutting
|
- Work piece not securely held
- Incorrect feed pressure
- Not enough blade tension
- Wrong speed for thickness
- Pitch too coarse
- Wrong tooth form
|
- Improve clamping
- Adjust
- Increase tension
- Adjust
- Use finer pitch
- Use variable pitch
|
Blade dulls prematurely
|
- New blade not 'run in'
- Feed rate too light
- Speed too high
- Pitch too coarse
- Coolant not directed
- Saw idling through cut
- Incorrect saw guides for width
- Teeth running in wrong direction
- Wrong blade quality
|
- See Bernards FAQ page
- Increase rate
- Reduce speed
- Use finer pitch
- Direct at point of cut
- Keep teeth engaged
- Use correct guides
- Refit blade correctly
- Try different type
|
Blade twisting
|
- Saw guide arms too far apart
- Blade binding in cut
- Not enough blade tension
- Blade too wide for radius
|
- Adjust correctly
- Reduce feed rate
- Increase tension
- Use narrower blade
|
Copyright © 2000 [Robert Bernard & Son Ltd]. All rights reserved.
Revised: July 18, 2007
.