Bosch 3915 - Manual (Page 32)

Troubleshooting
Troubleshooting Guide - Electrical
32.
PROBLEM
Brake does not stop blade in
about 5 seconds
Motor does not start.
Flash of light from motor endcap
when switch is released.
CAUSE
1. Brushes not seated or lightly
sticking or worn.
2. Motor overheated from use
of dull blade/too heavy of a
blade, not recommended
accessory or rapid on/off
cycling.
3. Blade bolt loose.
4. Other
1. Check that unit is plugged in.
2. Power source fuse or
time delay fuse.
3. Brushes worn.
4. Other.
1. Normal - brake working prop-
erly.
CORRECTIVE ACTION
- Inspect/clean or replace
brushes (see Maintenance
Section).
- Use sharp blade.
- Use a recommended blade.
- Let saw cool down.
- Tighten blade bolt.
- Authorized service
- Plug unit in. Use different
outlet.
- 15-Amp time delay fuse or
circuit breaker.
- See Brush Replacement in
the Maintenance and Lubri-
cation section.
- Authorized service.