Troubleshooting; Troubleshooting Guide - Electrical - Bosch GCM12SD Operating/Safety Instructions Manual

2610051827 GCM12SD 08-18.qxp_GCM12SD 9/19/18 2:52 PM Page 59
PROBLEM
Brake does not stop blade in
about 5 seconds.
Motor does not start.
Flash of light from motor end-
cap when switch is
released.

Troubleshooting

Troubleshooting Guide - Electrical

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.
Normal - brake working
properly.
CORRECTIVE ACTION
- Inspect/clean or replace
brushes (see Maintenance
and Lubrication 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 Motor Brush Replace-
ment in the Maintenance
and Lubrication section.
- Authorized service.
–
59