166Service Manual – Advance 7765 / Nilfisk CR1500Scrub SystemFunctional DescriptionOverviewThe scrub system includes the scrub deck, the three hydraulic scrub brush motors, the scrub deck hydrauliccylinder that lowers and raises the deck, and the associated hydraulic solenoid valves. One of the 1.02 CIRauxiliary pumps powers the scrub brush motors. The other 1.02 CIR auxiliary pump powers the scrub deckhydraulic cylinder.Scrub DeckThe three Hydraulic ScrubMotors are mounted on theScrub Deck and power theDrive Brush Assemblies.The Brushes snap into thelatches on the Drive BrushAssemblies.The ball valve regulatesthe solution flow to theWater Feed Hose connectedto the 90° Nipple on the TeeFitting. The three otherWater Feed Hoses supplythe solution to the Brushes.Brush (3)Drive BrushAssembly (3)WaterFeedHoseWaterFeedHoseWaterFeedHoseHydraulicScrub Motor (3)Solution Supplyfrom Ball ValveScrub DeckTeeFitting90°Nipple
