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Technical Support / Re: Hydraulic pump leak
« Last post by Eric Maclean on April 19, 2024, 03:55:55 PM »Don
As Frank pointed out the hydraulic fitting in question is what is known as an ORB ( O ring based fitting) . They are designed to be treated in and don't tighten up on the threads like a pipe thread does instead the stay loose in the valve block which allows you to position the fitting to the desired angle to allow hose connections to be where you need them.
One the fitting is threaded in and positioned correctly the jamb nut is tightened against the O ring which seals and locks the fitting in place.
It is common for the vibration from the running engine to loosen these type of fittings
As Frank pointed out if simply retightening the jamb nut doesn't solve the leak you may have to remove the fitting and replace the O ring.
Eric
As Frank pointed out the hydraulic fitting in question is what is known as an ORB ( O ring based fitting) . They are designed to be treated in and don't tighten up on the threads like a pipe thread does instead the stay loose in the valve block which allows you to position the fitting to the desired angle to allow hose connections to be where you need them.
One the fitting is threaded in and positioned correctly the jamb nut is tightened against the O ring which seals and locks the fitting in place.
It is common for the vibration from the running engine to loosen these type of fittings
As Frank pointed out if simply retightening the jamb nut doesn't solve the leak you may have to remove the fitting and replace the O ring.
Eric