Hitachi CB 13F - Manual (Page 21)

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PROBLEM
Blade does not run in the
center of the upper wheel.
Band saw slows down
when cutting.
Blades braking.
Blade dulls too quickly.
Band saw vibrates.
PROBABLE CAUSE
1. Not tracking properly.
2. Defective blade.
1. Belt too loose.
2. Cutting too small a radius.
3. Dull blade.
4. Overloading motor.
1. Too much tension on the blade.
2. Kink in the blade caused by cutting too
small a radius or turning the material too
fast when cutting
1. Blade guides set too close to the teeth.
2. Cutting incorrect material.
1. Too much tension on motor belt.
REMEDY
1. Adjust tracking. See ASSEMBLY AND
ADJUSTMENTS section BLADE TRACKING
2. Replace blade.
1. Adjust belt tension. See ASSEMBLY AND
ADJUSTMENTS section BL ADE TENSION.
2. Stop feeding, back up the material
slightly, until the band saw speeds up.
3. Replace blade.
4. Slow down, trying to cut too fast. See
MOTOR TROUBLESHOOTING GUIDE on
page 19.
1. Adjust tension. See ASSEMBLY AND
ADJUSTMENTS section BLADE TENSION
2. Use correct cutting technique.
See OPERATION section GENERAL
CUTTING.
1. Adjust upper and lower blade guides.
2. See OPERATION section BLADE SELECTION.
1. Adjust according to ASSEMBLY AND
ADJUSTMENTS section, INSTALL THE
BELT.
TROUBLESHOOTING GUIDE
WARNING
ⅷ To avoid injury from an accidental start, turn the switch OFF and remove the plug from the power source before
making any adjustments.
ⅷ All electrical or mechanical repairs should be done only by qualified service technicians. Contact Hitachi Authorized
Service Center.
GENERAL