Although we don't carry replacement parts for the Linemaster, the brush assembly (including the springs) is fairly easy to remove and replace. To remove the brush assembly, gently pull the brush unit just out of the aluminum frame bushing slots and carefully disconnect the springs from the plastic bushings near the brush. You can then remove the plastic bushings from the axle by using pliers to gently twist the bushings off. If you wish to replace the brush, it should now easily slide off the axle so the new brush can be installed. At this time you can also install new springs if the old springs are damaged, bent, or broken.
Answered on 8/2/2013 by Ryan from Holabird Sports