Successful Replacement of Hydraulic Hose Assemblies

Many types of hose end connections exist, such as JIC, ORS, male pipe, flange, etc. Each has its own torque specifications, pressure capabilities and installation procedures. “The installer should carefully follow the manufacturer’s recommendations, particularly in regard to torque and/or turns-past-hand-tight assembly procedures,” says Douglas Jahnke, marketing manager, Eaton Hydraulics. “Either a torque wrench or the traditional ‘number of flats past hand tight’ procedure (hand tighten and then turn a quarter or half turn more) are acceptable if the installer follows the recommended procedure.”

He adds, “When replacing a hose that has failed in service, the installer may want to consider converting to a more ‘leak-proof’ design (such as ORS to replace pipe thread) if there is any evidence of leakage at the connecting point.”