JoeBob394
Member
JD 5300 w 520 FEL. No mid mount hydraulics, so the loader is connected to the rear SCV's. I have disconnected and re connected many times with no issues (I use the raise and lower outlets because I need to use the float position) Recently I started getting a drip out of one, and then both of the outlets. I removed the o rings from the outlet and they were abraded, so I replaced them with the ones listed on JD Parts. This corrected the problem for a few hours, then it started leaking again and eventually they both completely failed (oil geyser). I replaces the male tips, and it failed again. Each time the o ring is damaged. Engaging and dis-engaging the float function jars the front end loader and rear hose connections fairly hard at times, so I am wondering at this point if the stress on the couplers could be damaging the o rings , and that there could be an issue there. Interestingly, Both scv couplers failed while cutting hay, even though I was only using one of the outlets for the mower, The second outlet was still connected to the loader. Any help would be appreciated.