Koblenz Scrub Brush Set (Pa...
$24.99
Product details
Part 4501342 covers both brushes in a matched scrub-brush pair built for the Koblenz 3902 and carried across the wider group of Kenmore, Regina and other Koblenz floor machines this pair is listed for. Buying the pair rather than a single brush keeps both sides of the machine wearing evenly from a fresh start.
Bristles on this style of brush lose their edge well ahead of any structural failure. As they splay outward and flatten, they glide across a floor rather than biting into the wax or grime sitting on it, and the practical result is a machine that has to go back over the same section repeatedly to finish a job it once handled in a single trip. When the two brushes wear at different rates, the whole machine develops a pull to one side, fighting the operator's grip on every pass.
Install both brushes together rather than swapping just the worse of the two, so the machine tracks straight and drives evenly again. Unplug the floor machine first, and seat each brush fully into its mount, since a brush that only partly locks in will wobble loose and wear down again before its time.
Because these bristles are what actually contacts the wax or the finish being scrubbed, their state shows up directly in the result left on the floor, not just in how hard the machine is to push. Old wax that has caked into the bristle base can dull the scrubbing action even on a pair that is not yet visibly worn, so wiping residue out between jobs helps this pair reach its full working life.
- Part: 4501342, scrub brush pair
- Fits: Koblenz 3902, and Koblenz, Kenmore, Regina floor machines sharing this mount
- Sold as: a matched pair, both brushes included
- Replace when: bristles splay or flatten, or the machine develops a pull to one side
