3-Point Hitch three point lift cylinder seal dk55

[bbtaxidermy]

has anyone out there ever had to replace seal for the three point lift cylinder how much of a job is it? It looks like I can get the top part of the case up and out with out taking off the cab (which the book says to do) I had taken it in a while back to a dealer to get the three point hopping up and down and leaking down fixed and all they did is turn up the hyd flow somewhere to get me out the door but it did not fix the overall problem. The three point still leaks down and when you pick anything up you hear a whining noise coming from in that case where the cylinder is. Any help would very much be appreciated. Thanks, Wes

 

[JC-jetro]

has anyone out there ever had to replace seal for the three point lift cylinder how much of a job is it? It looks like I can get the top part of the case up and out with out taking off the cab (which the book says to do) I had taken it in a while back to a dealer to get the three point hopping up and down and leaking down fixed and all they did is turn up the hyd flow somewhere to get me out the door but it did not fix the overall problem. The three point still leaks down and when you pick anything up you hear a whining noise coming from in that case where the cylinder is. Any help would very much be appreciated. Thanks, Wes

I have done exactly that on my F-1700. I did not need to remove the lift cover at all. I removed the lift piston/cylinder as one assembly by removing the cylinder head. I have not studied Kioti in great details but if you are able to remove cylinder head easy the rest is a piece of cake. It took me no more than 1 1/2 hr to do it first time. I can do it in 1/2 hr now on my own tractor. The seal is Nylon , make sure to get the direction of the lip right so it can hold hyd pressure. Below you'll find a link to a thread I started about my repair.

JC,

http://www.tractorbynet.com/forums/nh-owning-operating/90819-my-f-1700-testing-my.html

 

[bbtaxidermy]

Wow! Yours looks pretty simple to repair, mine isn't able to be pulled out from the back unfortunately. I checked out your link and it has a lot of usefull info hopefully I can cross reference some of it and help me with the repair of some of the other problems you had. Thanks, Wes

 

[JC-jetro]

Wow! Yours looks pretty simple to repair, mine isn't able to be pulled out from the back unfortunately. I checked out your link and it has a lot of usefull info hopefully I can cross reference some of it and help me with the repair of some of the other problems you had. Thanks, Wes

Wes,

Below is the pic of Kioti LK3054 that i snapped last year. The cylinder head is quite similar with my Ford 1700. I though I saw the same set up with DK35 with the exception some sheet metal cover that coverS lift cover and the piston head. It should not be difficult to remove the cover and expose the cylinder head. Take some close up pic and that may shed some light. my set up is quite common. If you need to remove the lift cover probably you'll need a hyd boom , stout rafter along with chain and a come along or tree branch with chain and come along to lift the housing. It'll be heavy. Obviously you'll have to remove the seat and some hydraulic tubing depending to your tractor design. Replacing the seal is snap and should take less than 5 minutes, the key is to get to it.

jc,

 

[BTI]

JC-That's a 2554.
The DK55 uses a different set up.
bbtaxi-You may be able too lift the cab a little bit after loosening up the mounts.
Instead of completely taking the cab off.
I have never tried taking one off. I'm doubting it's the cylinder.

I would raise an implement then turn in the knob to hold the implement up.
If it bleeds off then it's the cylinder seals.

BTI

 

[JC-jetro]

JC-That's a 2554.
The DK55 uses a different set up.
bbtaxi-You may be able too lift the cab a little bit after loosening up the mounts.
Instead of completely taking the cab off.
I have never tried taking one off. I'm doubting it's the cylinder.

I would raise an implement then turn in the knob to hold the implement up.
If it bleeds off then it's the cylinder seals.

BTI

I stand corrected. Good observation . Do you know if on DK55 the lift cover and cylinder assembly is covered by sheet metal? The key is not having to lift the cover.. if that's so then the repair is easy. I agree with you that closing off rate of return knob will give you indication of seal failure... It's almost always right but it is not %100 conclusive as the needle valve on the rate of return may also having problem holding tight. On my 1700 it is just $8 seal and tops 45 minutes.

JC

I got my pics a bit mixed.


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[Highbeam]

I've had my CK30 in a couple of times to have the hopping implement problem fixed. Closing off the drop rate valve did not stop it from hopping, just slowed the hop. Maybe because the position control was constantly trying to lift the implement to the lever's commanded position.

Two different dealers "adjusted" something beneath the seat which seemed to only apply more hydraulic pressure to the cylinder.

It still hops and now I have no warranty. I have some tricks though since sometimes it doesn't hop. If you drop the implement and cycle the 3ph the hop will go away when you rehitch. If you start the tractor engine immediately after commanding the 3ph to raise then the hop will sometimes be eliminated.

The dealers always blamed the MLS valve whatever that is. Perhaps your MLS valve is in poor shape???

 

[bbtaxidermy]

Hey Highbeam is there a whining noise coming from in the housing where the cylinder is when you pick anything with the three point? does yours always lower when tractor is shut off. Mine basically whines even with nothing on there and has never stayed up even empty, but like you said last time I had my DK55 in the shop they too adjusted somthing to give it more HYD flow back there and that was when the whining started. The guy at the dealer had said that it said in the computer the 3pt cylinder seal was replaced before a year before I got it (I got it used). I have also noticed that my three point will not go up as high as some of the other Kioti's I have looked at. Thanks, Wes

 

[BTI]

It sounds like there is just an adjustment off.


BTI

 

[Highbeam]

There is a whining noise any time that a 3ph implement is being supoprted by the 3ph. Once I set the implement on teh ground, the whining falls silent. Not a whine so much as a hiss and a load placed on the tractor. It seems to work to keep the implement raised unlike the FEL which seems to just be supported by hydraulics.

While messing with the hopper, I've unhitched the implement as described above to make the hop go away. The unloaded 3ph arms don't hop all by themselves. I then walked around and stood on top of the ball ends and the 3ph would hop me around.

There is supposed to be an adjustment screw with a locknut on it directly below my seat. The MLS adjustment. This adjustment seems to affect the hop and is what two different dealers have done to "fix" the problem unsuccessfully. They did get it to whine though. I wonder if the proper fix would have meant major surgery. Each time, the dealer mechanic was easily able to see the problem. It's not subtle.

The first time I noticed the problem was when the fluid was cold and my brush hog would get bouncing pretty good. It would go away after the warm up period.

This is one of the only "tractor" problems I've had. The machine part has been great.