3-Point Hitch Top & Tilt Kit on MX5800

[bdhsfz6]

I just traded my L3430 HST and BH90 backhoe for a new MX5800 HST with BH92 hoe. I had the dealer add 3 OEM hydraulic outlet ports and an OEM top & tilt kit. Since the tractor was delivered with the BH92 hoe attached, I installed the 3 point hitch and top & tilt kit myself after removing the hoe. When I raised the lift arms on the 3 point, the bottom hydraulic port housing struck the tilt cylinder inlet port and sheared the fitting off. There is only one way to assemble the kit but I did verify the installation was done correctly.

The dealer verified the part numbers are correct and claims they tested the T & T kit on the tractor before delivery. If they did, they certainly did not raise the 3 point all the way. They did say that this is the first MX5800 they have sold with this equipment. Kubota claims the parts should fit and is going to send a factory rep to investigate. It remains to be seen who will be responsible for the repairs.

I would like to know if anyone else has had this problem. It appears to me a simple fix would be to install a 45 degree pipe fitting in the tilt cylinder inlet port, as was done with the top link cylinder.

 

[C4Ranch]

Got a pic?

 

[bdhsfz6]

Got a pic?

Unfortunately no. I took the damaged tilt cylinder back to the dealer.
I installed the mechanical lift link so the tractor would be operational.

 

[Fallon]

Don't ever use pipe fitting on a hydraulic system. Standard Home Depot type pipe fitting are rated for 100-200psi. Hydraulics run at 2,500psi. Chances of catastrophic failure by using improper fittings is huge. If a spray of 2,500psi fluid gets near your body, it will cut & Pierce. You will quickly be loosing limbs due to gangrene even if you promptly visit the hospital.

 

[bdhsfz6]

Don't ever use pipe fitting on a hydraulic system. Standard Home Depot type pipe fitting are rated for 100-200psi. Hydraulics run at 2,500psi. Chances of catastrophic failure by using improper fittings is huge. If a spray of 2,500psi fluid gets near your body, it will cut & Pierce. You will quickly be loosing limbs due to gangrene even if you promptly visit the hospital.

Thanks for the warning but I'm well aware of the danger. I incorrectly used "pipe fitting" as a figure of speech. Could have been taken literally by someone else though so thanks again for pointing it out.

 

[JWR]

Without pictures it is hard to tell but my guess is that the cylinder can be rotated such that the fittings would clear everything else. (Maybe not?) If that was not an option I do not see how you can be responsible for the problem. I would be surprised if the regional service rep didn't clarify things in your favor. For one thing, if it required rotating the cylinder position (or something else) to avoid such troubles the dealer had a responsibility to prominently tell you so. By the way, is a sheared off fitting that big of problem ? Isn't that an inexpensive and easy to fix thing ? What am I missing ?

 

[bdhsfz6]

The cylinder can only be rotated 180 degrees since the lift arm pin hole is part of the cylinder housing. There isn't enough clearance between the cylinder and the transmission housing to do so.

Yes, a sheared off fitting can usually be repaired using an EZ out to remove the broken piece from the threaded cylinder port. In this case however, the threaded port was partially torn away from the cylinder body. I could have ground off the damaged port and welded on a new one without much trouble but it's a brand new machine. If Kubota won't make good on the part and supply a fix for the clearance issue, I may have to do just that.

I suspect you are right about Kubota. I've been dealing with them for many years and have always found them to be very reasonable in matters like this. Thanks for your reply.

Rick

 

[TripleR]

This is a picture of my OEM, is it set up like this?

 

[bdhsfz6]

This is a picture of my OEM, is it set up like this?

I'm guessing but it looks like your pic is an L series tractor. No, the cylinder port configuration is different on the M. I also have the BH 92 backhoe mount which further complicates the clearance issue. The ports on my top cylinder face directly upward and those on the tilt cylinder directly to the rear. No angle fittings were used on the hoses. Your configuration was well planned using angled fittings. Had the same been done on mine, I wouldn't have a problem.

I think you can see in your pic that if the upper port on the tilt cylinder were mounted directly to the rear with no angled hose fitting, it would hit the lower hydraulic port housing, which is what happened in my case.

Thanks for posting your pic. I should have taken a few before removing the damaged cylinder and returning it to the dealer. I suspect an error was made when the T & T was assembled without angled hydraulic fittings.

 

[TripleR]

I'm guessing but it looks like your pic is an L series tractor. No, the cylinder port configuration is different on the M. I also have the BH 92 backhoe mount which further complicates the clearance issue. The ports on my top cylinder face directly upward and those on the tilt cylinder directly to the rear. No angle fittings were used on the hoses. Your configuration was well planned using angled fittings. Had the same been done on mine, I wouldn't have a problem.

I think you can see in your pic that if the upper port on the tilt cylinder were mounted directly to the rear with no angled hose fitting, it would hit the lower hydraulic port housing, which is what happened in my case.

Thanks for posting your pic. I should have taken a few before removing the damaged cylinder and returning it to the dealer. I suspect an error was made when the T & T was assembled without angled hydraulic fittings.

Park a GL5030 by an MX5100 and check the specs, basically the same tractor, use to have one. I agree with the angled fittings, before I got the Kubota OEM setup, I had one with straight connections, didn't know any better at the time and no longer have it. Contact Brian at fit Rite, Fit Rite Hydraulics - fitritehydraulics.com and he can set you up with the right connectors.

Good luck.