Troubleshooting - Ryobi BS904 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
Motor runs but blade does not turn
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.
3. Blade is binding.
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.
1. Tension not set properly.
2. Drive belt broken.
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.
3. Remove jammed material.
1. Adjust tracking, See ADJUSTMENTS
section, "Tracking the Blade".
2. Have tool repaired by a qualified
service technician.
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 and Blade Guide
Support.
1. Adjust upper and lower blade guides
and bearings. See ADJUSTMENTS
sections, Adjusting Thrust Bearings
and Blade Guide Support.
2. Replace blade.
1. Tighten blade guide screws securely.
1. Use Rapidset Blade Tension Lever to
set tension.
2. Have tool repaired by a qualified
service technician.