Tipping and tilt bed trailers are fitted with either a 12 v electric pump or a manual hand pump.

The oil used is AW46 but any thin hydraulic oil would be suitable for topping up.

On trailers fitted with a hand pump, the pressure can be increased, if required by screwing in the relief valve. This is located opposite where the hose is connected to the pump under a plated nut cap. This can be unscrewed to be removed revealing the valve. Pressure is increased when screwed in clockwise with a flat screwdriver. The lock nut / cap can then be replaced.

Do not work under a hydraulically raised body unless it is propped.

keep the outside of the push rod or telescopic tube, lightly oiled.