Posted by Brendon-KS on October 15, 2020 at 11:41:08 from (206.225.246.20):
In Reply to: Re: JD Fitting Adapters posted by Traditional Farmer on October 15, 2020 at 10:24:01:
Just as an FYI the torque spec for -4 JIC fittings is 11-12 ft-lb and for -6 it is 18-20 ft-lb. You of course can't use a regular torque wrench on hydraulic fittings unless you use a crowfoot and do the offset calculations but this still gives you an idea of how tight to go even when using a regular open end wrench. As I indicated down below these fittings are super-reliable if tightened properly but if overtorqued they are typically ruined and will leak. What often happens is they are overtorqued from the beginning and the resulting leak makes a person think they are too loose which leads to even more tightening. If this happens a person might get lucky enough to mash the sealing faces together enough to stop the leak but don't plan on re-using the fittings if they are ever taken apart again.
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