Hydraulic Hose Routing and Installation

Under pressure, a hose may change in length. Always provide some slack in the hose to allow for this shrinkage or expansion.

(However, excessive slack in hose lines is one of the most common causes of poor appearances.) 

If a hose is installed with a twist in it, high operating pressures tend to force it straight. This can loosen the fitting nut. Twisting can cause reinforcement separation and the hose could burst at the point of strain.

When hose lines pass near an exhaust manifold or other heat source, they should be insulated by a heat resistant boot, fire sleeve or metal baffle. In any application, brackets and clamps keep hoses in place and reduce abrasion. For installations where abrasion to hose cover cannot be prevented with the use of clamps or brackets, a steel or plastic protective coil or abrasion resistant sleeve should be placed over the hose. 

At bends, provide enough hose for a wide radius curve. Too tight a bend pinches the hose and restricts the flow. The line could even kink and close entirely. In many cases, use of the right fittings or adapters can eliminate bends or kinks. 

In applications where there is considerable vibration or flexing, allow additional hose length. The metal hose fittings, of course, are not flexible, end proper installation protect: metal parts from undue stress, end avoids kinks in the hose. 

When 90° adapters were used, this assembly became neater- looking and easier to inspect and maintain, It uses less hose, tool When possible install hose fittings vertically.