A liftgate is a hydraulic platform attached to the back of a truck or trailer. It is used to raise and lower heavy cargo from the ground up to the height of the truck bed. This is essential for deliveries to locations without loading docks, like retail stores, offices, and residential areas. The driver loads goods onto the gate using a pallet jack or hand truck, then operates the controls.
Liftgates run on electric-hydraulic pumps powered by the truck's battery system. If the batteries get low or the hydraulic fluid leaks, the gate will stop working, leaving the driver unable to unload the freight. Regular maintenance is necessary to grease the pivot points and inspect the hydraulic hoses for wear or cracking. The lift platform folds away flat against the rear doors when driving.