Bluerock Tools 120D - Troubleshooting; Motor Does Not Turn On; Excessive Sparking When Motor Is Running; Machine Is Not Sanding

120D BURNISHER/GRINDER/SANDER/POLISHER
7
Troubleshooting
Note
SERVICING SHOULD ONLY BE DONE BY A QUALIFIED TECHNICIAN.
DON’T FORGET TO UNPLUG POWER TO UNIT PRIOR TO SERVICE!
PROBLEM
SOLUTION
Motor does not turn on.
1) Check external power source (extension cord, breaker, etc).
2) Loose internal wire. Check and secure if necessary.
3) Motor brushes defective. Replace if necessary.
4) Check to ensure the motor on/off switch is operable. Replace if necessary.
5) Variable speed switch is defective. Replace switch.
Excessive sparking when
motor is running.
1) This may indicate the presence of debris in the motor or worn out carbon brushes.
Check the brushes for unusual wear and replace if necessary. Clean out the
internal motor armature if necessary.
2) Armature has a rough edge. Inspect and replace if necessary.
Machine is not sanding.
1) Barrel is dull. Replace barrel.
2) Work area material is not appropriate for barrel type.
Chapter
4