TESTING AND DESIGN APPLICATION PROCEDURES FOR HYDRAULIC HOSE ASSEMBLIES

The expanding use of hydraulic components in off-highway machines has increased the need to be able to properly select these components to insure adequate service life when used as a part of a complete machine. This paper shows how a design engineer can match expected component service loads with the capability of hydraulic hose assemblies as determined by durability type tests in the laboratory. The paper shows how existing SAE impulse type tests can be used to generate “Pressure-Life Curves”. The selection of a hydraulic hose based on “Pressure-Life Curves” and the expected service history is illustrated.