83Service Manual – CS7000Dust Control/DustGuard™ SystemsFunctional DescriptionOverviewThe dust control system pulls air through the hopper and through a filter to trap the dust from the hopper.The optional DustGuard™ system sprays a fine stream of water in front of each side broom to minimize thedust created by the main broom.Dust Control SystemThe Impeller Assembly, mounted in the Hopper Cover, pullsair from the Upper Hopper through the Filter which trapsthe dust generated by the sweep system. The ImpellerAssembly exhausts the filtered air through vents in theHopper Cover.An optional dust control filter switch will shut off thevacuum motor in the Impeller Assembly if the vacuum onthe clean side of the filter gets too high as a result of aclogged Filter. When the switch is activated, the LCD willdisplay an icon to the operator.The removable Filter Shaker Assembly vibrates the Filterwhen the filter shaker switch is pressed to shake largeparticles from the input side of the Filter back into thehopper. This reduces Filter maintenance and helpsmaintain adequate airflow through the Filter. The FilterShaker Assembly will automatically switch on when thesweep system is turned off.HopperCoverImpellerAssemblyFilterUpperHopperFilterShakerAssembly
