Powered sweepers use brushes to pick-up the dirt and debris from the floor and deposit it in the hopper. This post talks a little about the different brushes and their function.
The main brush sweeps dust and refuse into the bin at the rear of the motor-sweeper. Never sweep up string, wire, etc., which can become entangled in the brush and damage the bristles. Periodically check the condition of the brush. The main brush rotates against the direction of travel of the motor-sweeper and throws the dirt and debris over itself into the rear hopper on motor-sweepers having an up-and-over sweeping system.
Adjusting the main brush
The main brush should just touch the floor. While the motor-sweeper is stationary on an even floor the section of floor covered by the bristles should be 3 cm wide. If the main brush no longer touches the floor, or leaves lines of dirt, it has worn down and must be lowered. Once beyond the limit of adjustment the main brush should be replaced, a simple procedure on our sweepers.
The side brush sweeps dirt from the edges of floors and from corners, and directs it to the centre of the sweeper where it can be picked up by the main brush. Looking from the operator’s position, the left hand side brush turns clockwise, the right hand side brush turns counter clockwise. On large machines the side brushes can oscillate so that when they meet an obstruction they will swing out of the way. Up to three side brushes can be fitted to extend the sweeping width of a machine.
Adjusting the side brush
Check that the shape of the trace left by the side brush is circular. As the bristles of the side brush wear down, adjust the height of the brush from the floor. When the motor-sweeper is not in use, the side brush must always be raised above the ground, to prevent its bristles from becoming bent.