Hopper System127Service Manual – Advance 7765 / Nilfisk CR1500Component LocationsThe following components are included in this section:• Hopper Lift Cylinder• Hopper Dump Door Cylinder• Hopper Switch and Hopper Door Switch• Hopper Control ValveThe Hopper Lift Cylinder is attachedto the machine frame and Hopper,and raises and lowers the Hopper.The Hopper Dump Door Cylinderopens and closes the HopperDump Door.The Hopper Switch contactsthe Hopper Dump Door Cylinderand closes when the Hopper isdown.The Hopper Door Switchcontacts the Hopper Dump Doorand closes when the HopperDump Door is closed.HopperLiftCylinderHopperHopperHopperSwitchHopperDoor SwitchHopperDump DoorCylinderHopperDump Door