Motor brush quick change assembly

A motor brush quick change assembly for electrically contacting against an electrically conductive surface within an electrical device, the motor brush quick change assembly comprising:

• a flexible electrical spring contact configured to be mounted to the electrical device in proximity to the conductive surface;
• a brush unit comprising:
• a carrier;
• an electrically conductive housing mounted to the carrier, the housing comprising a receptacle and a contact surface;
• and
• a brush mounted in the receptacle and with a first end extending outward from the receptacle away from the carrier and with the brush being electrically connected to the contact surface;
• the brush unit configured to mount to the electrical device with the contact surface of the housing positioned to contact against the spring contact and the first end of the brush positioned to contact against the conductive surface;
• wherein the contact surface of the housing is positioned away from the receptacle such that the contact surface is spaced away from the brush.

A method of attaching a quick change brush unit to an electrical device, the method comprising:

• inserting the brush unit into a receptacle in the electrical device;
• contacting an electrical contact surface of a housing of the brush unit against an end of an electrical spring contact that is exposed within the receptacle with the contact between the contact surface and the electrical spring spaced away from a brush of the brush unit;
• contacting a first end of the brush of the brush unit against an electrically conductive surface within an electrical device;
• securing a carrier of the brush unit with the electrical device and maintaining the position of the brush unit relative to the electrical device;
• and
• receiving electrical current at the electrical contact surface from the electrical spring contact and transferring the electrical current through the housing of the brush unit and into the brush while the first end of the brush is against the electrically conductive surface within the electrical device.