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Hose pops out of coupler when lowering


 
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TASO
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PostPosted: Thu May 12, 2022 6:10 pm    Post subject: Hose pops out of coupler when lowering Reply to specific post Reply with quote

Our 2-105 hydraulics are acting up. Tractor normally runs the discbine and round baler. No issues with raising or lowering the discbine or opening and closing the rear gate on the round baler. Cylinders open and close normally. This spring we decided to do some tillage on rented ground and used it to run the 5 shank chisel plow. There were no issues raising or lowering the chisel. But when we put the 14 foot disc on the 2-105, it raises it ok but when you lower it, the hose that sends flow back to the tractor pops out of the coupler( we normally set up our connections such that the remote lever is pushed to the rear to raise and forward to lower). It does this on both outlets. The outlets are adjusted for lowering the same as our 2-85 and our 1750. These tractors have no issues with the hose popping out of the coupler when raising and lowering the disc. We have not reversed the 2-105 remote operation to check what happens then, we will try that the next rainy day.
Does anyone have any idea what is causing this? Thanks.
 
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oliver90owner
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PostPosted: Fri May 13, 2022 12:29 am    Post subject: Re: Hose pops out of coupler when lowering Reply to specific post Reply with quote

CVPost-TASO wrote:
(quoted from post at 03:10:10 05/13/22) Our 2-105 hydraulics are acting up. Tractor normally runs the discbine and round baler. No issues with raising or lowering the discbine or opening and closing the rear gate on the round baler. Cylinders open and close normally. This spring we decided to do some tillage on rented ground and used it to run the 5 shank chisel plow. There were no issues raising or lowering the chisel. But when we put the 14 foot disc on the 2-105, it raises it ok but when you lower it, the hose that sends flow back to the tractor pops out of the coupler( we normally set up our connections such that the remote lever is pushed to the rear to raise and forward to lower). It does this on both outlets. The outlets are adjusted for lowering the same as our 2-85 and our 1750. These tractors have no issues with the hose popping out of the coupler when raising and lowering the disc. We have not reversed the 2-105 remote operation to check what happens then, we will try that the next rainy day.
Does anyone have any idea what is causing this? Thanks.


Substitution, in this case,is the simplest way to determine if a connector is dodgy.

Then change that component for a good one.
 
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Traditional Farmer
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PostPosted: Fri May 13, 2022 2:34 am    Post subject: Re: Hose pops out of coupler when lowering Reply to specific post Reply with quote

I'd swap hoses on the connectors to start
 
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rrlund
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PostPosted: Fri May 13, 2022 2:52 am    Post subject: Re: Hose pops out of coupler when lowering Reply to specific post Reply with quote

I never considered it, but is there an adjustment for rate of fall on those? If there is, I wonder if it's a combination of just a little too much restriction in the rate on that particular tractor combined with a bad male tip? Or maybe not enough and too much oil flow is blowing it out? I don't know. I'd for sure swap out the tip.
 
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Matt in Oz
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PostPosted: Fri May 13, 2022 3:12 am    Post subject: Re: Hose pops out of coupler when lowering Reply to specific post Reply with quote

Had a similar thing happen using offsets on my NH 7840. It uses pioneer type couplings. Would pop one hose on one set of remotes. Turned out to be a ring type fitting on the female on the tractor was loose, tightened that and no problem. The fact yours is doing it on both remotes is probably a different problem. Thought I would share, good luck and I hope you get it sorted.
 
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in-too-deep
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PostPosted: Fri May 13, 2022 6:54 am    Post subject: Re: Hose pops out of coupler when lowering Reply to specific post Reply with quote

Put a new tip on the disk hose. I doubt there's anything wrong with the tractor.
 
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TASO
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PostPosted: Fri May 13, 2022 4:16 pm    Post subject: Re: Hose pops out of coupler when lowering Reply to specific post Reply with quote

Thanks for all the replies. We experimented today. We replaced the Pioneer tips with new ones and the popping happened again on both remotes. We reversed the connections and it happened again. We then took a hard look at the flow restriction adjustment and compared it to the 2-85. They appeared to be the same but measuring showed the 2-85 was slightly more restricted. So we adjusted the flow restrictors on the 2-105 and screwed then in further. Problem solved, no more popping. Yay! We have had a lot of hydraulic issues with this tractor in the past: new pump, rebuilt remote valves, bad seals on the pto, leaky o-rings on the Cat III lift cylinders. After all that, we were glad this was something simple and cheap.
 
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