How to Replace Motor Brushes on your 4Z1 4Z1W/S Handheld Bluerock Concrete Core Drill 4" Z-1 4" Z1WS

Replacing the carbon motor brushes on the 4Z1 is a simple process and only requires a few basic hand tools. If your core drill motor sparks, hesitates, powers off intermittently it could be a sign that your motor brushes need to be inspected and replaced.
WE STRONGLY ENCOURAGE YOU BLOW OUT YOUR MOTOR WITH COMPRESSED AIR OF ANY RESIDUAL CARBON BUILD UP, CONCRETE DUST AND GRIT THAT CAN LODGE INSIDE THE MOTOR AND CAUSE SIMILAR SYMPTOMS.
Replacement brushes can be found: www.bluerocktools.com/blueroc...