Wellsaw 1348 - Manual (Page 7)

5
Premature Blade Breakage
1. Poor weld in the blade.
2. Feed rate set too high. Reduce it.
3. Excessive blade speed. Adjust it.
4. Blade guides set too tight or misaligned.
5. Blade tension set too high.
6. Blade running against flange on wheels. Adjust
wheel pitch.
Blade Squeal
1. Feed rate too light for blade speed. Increase
feed rate and/or reduce blade speed.
Blade Slips Off Band Wheels
1. Blade not tensioned correctly.
2. Wheel pitch not set properly.
3. Guides set too tight.
Gullets of Blade Teeth Loading
1. Blade pitch too fine. Review blade selection.
2. Incorrect blade speed. Consult cutting chart.
3. If not using coolant, apply it.
Chips Welding to Blade Teeth
1. Cutting rate too high.
2. Chip brush may be out of adjustment.
3. Check coolant and application.
Blade Becoming Scored
1. Saw guides may be worn. Check and replace if
necessary.
2. Too much pressure on saw guides. Adjust.
3. Guides may be out of alignment.
Blade Making Belly-Shaped Cut
1. Blade tension too light. Increase it.
2. Saw guides too far from work piece.
3. Blade pitch too fine. Use larger pitch and
positive rake tooth form.
4. Feed force too heavy. Decrease it.
Inaccurate Cut-Off
1. Is conveyor or stock stand level with saw bed?
2. Insufficient blade tension.
3. Blade guides too far apart. Always set blade
guides as close to the piece as possible.
4. Blade may be dull. Check and replace if
necessary.
5.
Feed pressure too high. Reduce it.
6. Blade guides loose, worn or out of alignment.
7. Too many teeth-per-inch. Blade not cutting
freely.
8.
Chip brush not cleaning teeth properly.
9. Dirty coolant.
10. Check for loose fasteners.
Rough Cut / Poor Finish
1. Excessive feed rate. See recommendations.
2. Blade too coarse. Use finer blade pitch.
3. Inadequate cutting fluid. Replace.
Blade Stalls in Work
1. Insufficient blade tension.
2. Excessive feed pressure.
3. Blade tooth spacing too coarse.
4. Motor worn or defective.
5. Guides too tight against blade.
Blade Does Not Track Properly
1. Set wheel pitch so that blade runs to wheel
flange but not against it.
2.
Is blade tension correct?
3. Is back of blade riding against backup
bearing? If not, adjust it.
Motor Overheating
1. Check for correct voltage supply. Check
voltage at motor. Check magnetic starter heaters.
2.
Check for loose electrical connections.
3. Does motor amp reading correspond to rating
on motor specifications tag?
4.
Is internal motor wiring correct?
5. Is drive belt over tightened?
Automatic Stop
When the blade has completed a cut through the
material, the saw frame drops onto a limit switch
actuator which shuts the motor off.
When changing a blade or doing any other
maintenance or repair, be sure the automatic stop
is engaged and disconnect the main power supply.
It is necessary to raise the saw frame to clear the
limit switch actuator before the saw can be started.