17
Troubleshooting Guide
Motor
General
Wiring Diagram
Problem Probable Cause Suggested Corrective Action
Motor does not start. 1. Fuse.
2. Brushes worn.
3. Other.
4. Low voltage
- 15 amp time delay fuse, or circuit breaker.
- See “Maintenance” section.
- Get authorized RIDGID service.
- Check power supply for proper voltage and
correct as needed
Brush sparking when switch
released. 1. Normal automatic brake working
properly. - None
Motor stalls easily 1. Low voltage
2. Excessive wheel pressure when
cutting
- Check power supply for proper voltage and
correct as needed
- Pull wheel through work at a slower pace
Problem Probable Cause Suggested Corrective Action
Cut-off wheel hits base or
work surface. 1. Misalignment
2. Downstop out of adjustment - Get Authorized Service.
- See “Alignment” section
Cut is not square. 1. Defective wheel
2. Work not positioned properly
3. Excessive wheel pressure
- Replace immediately
- Position work properly
- Lessen wheel pressure
(Don’t push down on handle so hard)
Power head won’t fully rise or
lower guard won’t fully close 1. Lubrication needed
2. Part failure
3. Pivot spring or guard spring not
replaced properly after service
4. Dirt sticking to stops
- See “Lubrication” section.
- Get Authorized Service.
- Get Authorized Service.
- Inspect/clean stops.
Cut-off wheel binds, jams,
burns workpiece.
Rough cuts
1. Improper operation
2. Dull cut-off wheel
3. Improper cut-off wheel
- See “Basic Operation” section.
- Replace wheel.
- Replace with 14” diameter wheel designed
for the material being cut.
Tool vibrates or shakes 1. Wheel not round
2. Wheel damaged
3. Wheel loose
4. Other
- Replace wheel.
- Replace wheel.
- Tighten arbor screw.
- Get Authorized Service.
Power head hard to pull/push
down 1. Lube needed See - “Lubrication” section.
Black
Switch
Black
N.C
.
N.O.
Black
Armature
Brush
Brush
White
Ground
