The purpose of the water system is to control dust and add density to material, making debris easier to sweep and collect while creating a dust free environment. The primary nozzles spray water through high-pressure 3 nozzle bars located in front of each side broom and through 4 nozzle bar located in front of the main broom. There is also a spray bar mounted on the front of the chassis if more water is preferred. The 220-gallon (833 L) polyethylene water tank is rustproof and easily accessed. The rustproof water system is controlled from inside the cab and is equipped with a low-water level warning light on the console.
Two 20” in diameter hydraulically powered side brooms rotate powerfully to push debris underneath the chassis and into the path of the main broom. In-cab controls allow the operator to easily adjust the tilt angle and downward pressure of the brooms. Adjustments allow the sweeper to give optimal performance in a wide-range of jobs from light sweeping to removing asphalt grinding on flat surface or uneven surfaces. To assist in sweeping as close as possible to obstacles without the fear of damaging the broom arms, the trailing arm design with spring kickback protects the side brooms on obstacle contact.
Located at the back of the sweeper, the hydraulically driven and elevated main broom rotates to flip material onto the squeegee elevator. Spanning 58” (1.47 meter) in length, the main broom effectively and efficiently cleans anything in its path. Downward pressure on the main broom can be easily adjusted on each side independently to prevent broom from uneven wear. With an easily accessible design, the main broom is easy to replace and bearings are an ease to grease. Together the side brooms and main broom create a 9’ 6” (2.74 meter) sweep path.
The 58.5” (1.48 meter) wide direct drive elevator sits close to the slightly narrower main broom and collects debris brushed by the broom. Debris are then lifted up the elevator wall by rubber edged squeegees and propelled into the hopper. Designed to be easily accessible, the open design with a hinged plate door allows for easy access for cleaning and inspection. If the elevator system does become jammed with large debris, an in-cab warning light will go off and the operator can reverse the elevator rotation to dislodge the debris using the in-cab controls.
The Challenger sweeper is fitted with a large 4 cubic yard (3.06 cubic meter) debris hopper that allows for long duration sweeping sessions before it needs to be emptied. To significantly increase productivity of the sweeping process, the hopper is able to unload debris into a variety of bins or dump trucks from ground level to 10 feet (3 meter) high due to its variable height hydraulic lift system. The lift system works on a multi-stage hydraulic cylinder that lifts the scissor style beams, the hopper is then tilted to unload debris. The hopper can be controlled from either within the cabin or externally and has a lift capacity of 9,400 lbs (4263.8 kg).