DeWalt 705 miter saw

[mickm]

I came across a great deal on a dewalt mitersaw(free) that the previous owner said had a few "problems". After inspection I found both brush holders broken at it's contact point . I've replaced the holders and brushes, and the saw now works, but has a large arc when you let off the trigger. the blade brake also does'nt seem to be working.

I don't want to spend a ton of money replacing posible problems(armature)when I could just use the the saw for parts for an older but still working model of the same saw I already own.

Any ideas of the problem and posible fix would be appreciated.

mick

[Dave]

mickm,

Here is an older post about a similar saw. It might not be the same problem, but it is a good place to start. Often a problem with the electric brake and arcing comes from a bad connection between the brushes and the armature.

Miter saw blade brake keeps running

This post has a picture of what a clean commutator should look like.

[JesseAltman]

hi i have a dewalt 705 basically it dont work, brushes and armature have been replaced, im getting power on both sides of the trigger and its showing power to the armature where else should i look or what should i do?

[cmoorejack]

Hey Jesse,
The only component left is the field..check all the connections to see if if there is a problem..with an ohm meter you can check one side of the winding to the other end on both side of the field.[you will have to disconnect the wires first or remove the field completely and then check].no continuity...bad field
hope this helps?
cmoorejack