Taylor Dunn Motor Repair and Rewind

Motor Rebuild includes the following:

Motor disassembly

Armature testing: test for shorted windings by a bar to bar electrical resistance ohm test. Test for insulation breakdown by 500 volt hi-pot, and a 500 volt megger test. Check shaft for spline wear, and straightness.

If windings pass the above tests, the armatures’ commutator is turned, undercut and polished to return the armature to its original condition, within .002” out of round. The reconditioned armature is checked for proper balance and rebalanced if needed. If the armature does not pass the above tests, you will be notified if rewinding is needed and if there may be an extra charge.

Field coils are tested for electrical shorts and insulation shorts to ground.

All windings are re-coated with varnish and baked.

Brush holders are tested for insulation leakage by 1,000 volt hi-pot and 500 volt megger tests.

Motor bearing journals are inspected and machined if needed

Bearings are replaced

Brushes are replaced

Motor reassembly and testing

Cleaning and painting

Labor

Warranty