Brush Holder
- Connect a self-powered low voltage test light between brushes. Test light should not illuminate. Connect test light between "DF" terminal and "+" brush. Test light should give steady light even if brush and/or terminal cable is moved.
- Connect 12-volt test light between brush holder frame and "-" brush. Light should give steady light. If test results are not satisfactory or brush length is less than .51" (13 mm), replace brush holder. See Fig 1.
NOTE:
Brush length is measured between brush contact surface and holder, with brush resting against spring.