Troubleshooting - Ryobi BS903 Manual Del Operador

PROBLEM
Motor will not run.
Blade does not run in the approxi-
mate center of the upper wheel.
Band Saw slows down when
Blade breaking.
Saw is noisy when running.
Blade will not cut straight.
Blade guides will not stay in position. 1. Blade guide screws have
NOTE: FIGURES (ILLUSTRATIONS) START ON PAGE 17 AFTER
FRENCH AND SPANISH LANGUAGE SECTIONS.

TROUBLESHOOTING

CAUSE
1. Problem with On-Off switch or
power cord.
2. Motor defective.
1. Not tracking properly.
1. Cutting too small a radius.
2. Dull blade.
1. Too much blade tension.
2. Kink in blade caused by cutting
too small radius or turning the
material too fast when cutting.
3. Thrust bearings scarred or not
rotating.
1. Too much blade tension.
2. Blade guides and bearings
are in contact with the blade.
1. Blade guides and bearings not
properly adjusted.
2. Worn or defective blade.
loosened.
16 — English
SOLUTION
1. Have worn parts replaced before
using band saw again.
2. Do not attempt any repair. Have
tool repaired by a qualified
service technician.
1. Adjust tracking, See adjustments
section, Tracking the Blade.
1. Stop feeding and back up the cutting
material slightly until the band
saw speeds up.
2. Replace blade.
1. Adjust tension. See adjustments
section, Adjusting Blade Tension.
2. Use correct cutting technique.
See section, Operation.
3. Replace the thrust bearings.
1. Adjust tension. See adjustments
section, Adjusting Blade Tension.
2. Adjust upper and lower blade
guides and bearings. See adjustments
sections, Adjusting Thrust Bearings,
Blade Guide Support, and Blade
Guides.
1. Adjust upper and lower blade
guides and bearings. See adjust-
ments sections, Adjusting Thrust
Bearings, Blade Guide Support,
and Blade Guides.
2. Replace blade.
1. Tighten blade guide screws
securely.