Damaged amature causing lack of speed variablity?
My 395 will only run up to about setting 4... I took it apart, cleaned the switch and still the same problem While it was apart I checked the amature and found it had deep grooves carved intoa number of the metal coils.... could this be causing the problem?
Tools & Hardware - Others - Dremel - Variable - Speed Multipro Rotary Tool 395
Answers & Comments
That could cause a problem not allowing the brushes to seat properly. Does it arc excessively? If so you might need a new armature. Also while you had it apart did you check the bearings for being rough or tight?