Bosch 3915 - Manual (Page 33)

Troubleshooting
Troubleshooting Guide - General
33.
PROBLEM
Blade hits table.
Angle of cut not accurate.
Cannot move miter adjustment.
Head assembly will not fully rise
or blade guard will not fully close.
Blade binds, jams, burns wood.
Rough cuts.
Tool vibrates or shakes.
Head assembly does not move
from 33.9° position.
Blade does not completely cut
workpiece.
Head assembly does not slide
freely when attempting a slide
cut.
Head assembly slides forward
and back when making a chop
cut.
CAUSE
1. Misalignment
1. Misalignment
1. Lock knob tightened/detent
engaged.
2. Sawdust under table.
3. Blade interferes with fence.
1. Part failure.
2. Pivot spring or guard spring
not replaced properly after
service.
3. Cover plate not tightened
after replacing blade.
4. Sawdust accumulation.
1. Improper operation.
2. Dull blade.
3. Improper blade.
4. Bent blade.
1. Saw blade not round.
2. Saw blade damaged.
3. Saw blade loose.
4. Other.
1. Bevel detent lock pin
engaged.
1. Depth stop screw adjusted for
groove cutting.
1. Slide rail lock knob tightened.
1. Slide rail lock knob not tight-
ened.
CORRECTIVE ACTION
- Authorized service.
- See Adjustments section.
- Loosen lock knob/move out
of detent.
- Vacuum or blow out dust.
Wear eye protection.
- Authorized service.
- Authorized service.
- Authorized service.
- See Blade Installation page
11.
- Clean head assembly.
- See Basic Saw Operation
section.
- Replace or sharpen blade.
- Replace with 10” diameter
blade designed for the materi-
al being cut.
- Replace blade.
- Replace blade.
- Replace blade.
- Tighten arbor screw.
- Authorized service.
- Pull lock pin out and rotate
90°.
- See Depth Stop Adjustment in
the Adjustment section.
- Loosen slide rail lock knob.
- Push head assembly com-
pletely against stop. Tighten
slide rail lock knob.