High pressure tank and hose (Discovery 3)

Tank

The reservoir for the working fluid is mounted on a bracket on the left side of the engine compartment, behind the radiator. The reservoir consists of a housing, a cover and a filter. The reservoir supplies additional working fluid to the system in the event of its thermal expansion or contraction. Maintaining the fluid in the reservoir at the required level allows the supply hose at the bottom of the reservoir to be filled with fluid in any position of the car. If there is air in the system, it comes out of it into the reservoir.

The body is cast from plastic and has two pipes on the bottom for attaching the feed and return hoses. The marking on the wall serves to indicate the maximum and minimum levels. A non-replaceable nylon mesh filter with a cell size of 100 microns is installed in the body of the tank. The filter prevents solid particles from entering the pump from the tank.

To remove the cover from the body, turn it counterclockwise by a quarter of a turn. To prevent fluid leaks, the tank cover has a sealing ring. The tank cover has a breather that allows the fluid in the tank to change level during movement without creating excess pressure or vacuum.

High pressure hose

The high-pressure hose connects the pump to the steering gear hydraulic distributor and contains two attenuators. Each attenuator is a bullet-shaped restrictor fixed inside the hose. The restrictors smooth out pressure fluctuations of the fluid coming from the pump, thereby reducing noise and load on the components installed further downstream. The attenuators are built into the hose and cannot be replaced separately from it.

Working fluid cooler

The cooler of the working fluid is located in the return line between the steering mechanism and the reservoir. The cooler consists of a flexible hose and a solid tube, which are installed between the reservoir and the return pipe of the steering mechanism. The cooler of the working fluid is built into the pipe and cannot be replaced separately from it.

The cooler is an aluminum tube through which the power steering fluid passes. The cooler tube has cells around its outer circumference that dissipate heat. Cold air from the front of the car passes over the cooler and into the cells. The cells act as heat exchangers, removing heat from the fluid flowing through the tube.