18" Long Lip for Electric Hydraulic & Mechanical Dock levelers. Mechanical Docklevers are engineered and designed for minimum maintenance. Make loading and unloading easy with this rugged dockleveler. This system features a pull chain operation. Electric Hydraulic Dock Levelers have a state-of-the-art hydraulic design with simple operation at the push of a button. The Electric Hydraulic Dock leveler is ideal for high usage dock areas. This is an easy to operate unit. Operator pushes and holds the “raise” button which activates the hydraulic pump and raises the deck. When the deck reaches the raised position the lip automatically extends. The operator releases the “raise” button and deck descends to rest on trailer. Control box includes red emergency stop button standard. When the truck pulls away, the deck descends to full down position, trips the limit switch and returns automatically to the level support cross traffic position.