I've been using O-Ring Face Seals (ORFS) on hydraulic hoses and tubes for a while, then I started this job, where the ole 37deg. JIC fitting was the standard. Well, the company (the design engineering guys) wanted to change over to the more reliable ORFS, but they didn't change the designs to allow for the torque wrenches, so they (the design engineering guys) decided to just forego torqueing hoses all together. It wasn't too long before the field reports started coming in on leaks at the hose fittings and they (the design engineering guys) are thinking the operators on the floor are not tightening the fittings, or they are coming lose after tightening. So, they (the design engineering guys) asked us (the manufacturing engineering guys) to come up with a solution that didn't include a torque wrench. So, we, (the manufacturing engineering guys) came up with a dot or just more than a dot of loc-tite on the threads of the fittings. The idea works better than nothing, but until we can convince the design guys to move hoses, this is what we're doing.
The question comes around from rework or leaks found in the factory. Once the fitting is covered with oil, how can we get the loc-tite to work? We can never get the oil completely off the fitting.
Thanks
Laby
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