dw705 type 5 12" compound miter saw

[fox]

The saw quite me. I have replaced switch, and brushes. I have now taken it apart and tested armature field for continuity. On 3 of the four wires going into the field test true at the brush connection. I am placing on probe of meter where wires from swith connect and the other end where the brushes plug in. If this is proper testing of field for continutiy. if one is not testing true does this mean the armature field is bad? Any help is appreciated. Fox

[UtahAV]

Hi Fox,

To really know if your armature and field are bad you will need to take them to a good repair shop for testing. A good shop will have invested in some very specialized equipment to test them. One of these tools puts out an extremely high amount of voltage but almost no current. It will show any shorts that might be in the windings. The second tool creates a magnetic field around the armature and will show shorts in the commutator.

You can take an impedance test of the field and get an indication of its condition. You should get the same reading (within an ohm or two) on both sides of the field. If the readings come out different from each other then the field is bad.

I hope this helps!

-UtahAV
-Mark