Hydraulic Flexible Pipes and Hoses

Before removing a hose from the brake or power steering systems, thoroughly clean the end fittings and the area surrounding them. Obtain blanking caps before detaching hose fittings, so that ports can be covered to exclude dirt. Clean the hose externally and blow through with compressed air. Examine the hose carefully for cracks, separation of plies, security of end fittings and external damage. Reject any hose found to be faulty. When refitting the hose, ensure that no unnecessary bends are introduced and that the hose is not twisted before or during tightening of union nuts.

Do not store hydraulic fluid in an unsealed container because it will absorb water. Fluid in this condition would be dangerous to use due to a lowering of its boiling point. Do not allow hydraulic fluid to be contaminated with mineral oil, or use a container which has previously contained mineral oil.

Do not reuse fluid bled from the system. Always use clean brake fluid, or a recommended alternative, to clean the hydraulic components. Fit a blanking cap to the hydraulic union and a plug to its mating socket, after removal from the vehicle, to prevent ingress of dirt. Absolute cleanliness must be observed with hydraulic components at all times. After any work has been performed on hydraulic systems, inspect carefully for leaks underneath the car while a second operator applies maximum pressure to the brakes (with the engine running) and operates the steering.