LK2554 Hydraulic Pump Question

[K5lwq]

I have been researching hydraulic pumps for my LK2554 and ran across an old thread where someone upgraded their LK3054 to a 10GPM pump. Does anyone know if this pump would fit on the LK2554? Tractor Joe is suggesting that their replacement pump fits both models.

The issue I am having is that below 1500 RPM I get very little or no movement on loader or 3PH. I can get 2100 PSI when the tractor is above 2000 RPM. If I try to curl the bucket while raising the boom, the boom will fall at a pretty fast rate. As long as I am careful not to do that, it's not a big deal.

It seams to me that my pump is a little weak and higher flow rate would really help. Any thoughts?

 

[marchanna]

I think you have to consider whether or not your tractor has enough power to drive a higher capacity pump. Your’s has a 7gpm pump which seems properly sized for a 25hp tractor. Your rated rpm is 2600, so as long as it functions as desired at that rpm I would leave it as is.

Is the boom dropping while the bucket is loaded or empty?

 

[K5lwq]

The bucket is empty. Even with the bucket off it still falls. I feel confident I have enough power as I turned the injector pump up and it is a very powerful 25hp now. Been a good tractor but the hydraulics have always been an issue, at least as long as I have owned it. I bought the tractor from a auction and the day I bought it home it slung a rod through the block. The tractor was abused. I replaced the motor and rebuilt the front wheel drive as well as other small repairs.

 

[marchanna]

It sounds like maybe the pump is shot. Have you tested the pressure?

 

[K5lwq]

I have. At full throttle I can get 2100 PSI. It takes a bit to get there. I have always suspected the pump as the issue, but if I could increase the flow a bit in the process it would make things a little better.

 

[marchanna]

It sounds like the pump is weak. It should get up to pressure immediately. Maybe a sticky relief valve?

 

[K5lwq]

I replaced the loader valve and it's performance is the same. I have not replaced the diverter valve but think it is the pump. I am going to replace the pump, just would like to get a little more flow if it is available.

 

[Patches]

My '04 3054xs came with an aluminum hydraulic pump and would hardly curl the loader bucket in live sand after the hydraulics warmed up; it was replaced with a cast iron pump under warranty, which corrected the issue.

 

[K5lwq]

My '04 3054xs came with an aluminum hydraulic pump and would hardly curl the loader bucket in live sand after the hydraulics warmed up; it was replaced with a cast iron pump under warranty, which corrected the issue.

That's the one I am thinking will fit. Is it 10GPM? Would you know the part number?

 

[Patches]

That's the one I am thinking will fit. Is it 10GPM? Would you know the part number?

Unsure of the capacity and I didn't get a work order, being it was a warranty issue. I can check for any #'s on the pump, but the possibility of them being a part # is remote. Looking at the parts manual it appears the original # is T2540-76102 and is replaced by #T2565-76101 on units with serial #E265-00001 and up and that pump replaced by #T2567-76041 on units with serial # F265-00001 and up. Which one is aluminum or iron or 10GPM, I've no idea. My tractor being an '04 has a serial # beginning with "D"

 

[K5lwq]

Thanks for the help! I will keep researching for the correct one. Everything so far looks as if it would bolt right up. The only difference I see is one of the bolts is longer and that is a easy fix.

 

[K5lwq]

Comparing the pumps for the LK2554, LK3054, and LK3054 XS it seams as they would all interchange. The gears are the same part number, the housing that the pumps bolt to is the same part number, and the filter housing that bolts to the bottom is the same part number. The only thing I can't verify is the physical size of the pumps. Not sure if that would be an issue or not. The other thing I cannot locate is which part number is the 10GPM cast pump.

Does anyone know the correct part number?

 

[Patches]

Should you obtain that info, please post the #, as I might be interested in upgrading; my hydraulics not outstanding

 

[K5lwq]

Thanks Patches for all your help. Everything I have found so far suggest that your pump would be the 10 GPM pump. Must of what I found is on TBN. Midwest Kioti has a 2006 3054xs listed and in the specs it references a 10 GPM flow rate. I am going to call some dealers tomorrow and will report back.

 

[K5lwq]

I called and talked to Kioti and the correct part number they tell me is T2567-76041. They say this is the 10 GPM pump. So I ordered the pump and two bolts that are the only different part numbers between the LK2554 and the later model Lk3054. It looks as if I will have to remove two studs and replace them with the longer bolts. I will post back to this thread on before and after time test at different RPMs so we have good documentation for the future. Also I will give details on the change out and any other modifications needed.

 

[K5lwq]

Pump installed and is working great. T2567-76041 is the correct part number for the 10 GPM pump. I am going to start a new thread with upgrade instructions and results from test. Just wanted you to know Patches just in case you miss the new thread.

 

[kioijim]

Here's the parts list from my local dealer

 

[K5lwq]

Wow that is way more than what I paid. Here is the thread where I did the install. I shared my prices and the part number. Hope that helps but that seems high to me.

Loader - LK 2554 and LK 3054 Hydraulic Pump Upgrade

The purpose of this thread is to hopefully assist others with slow hydraulics on the LK 2554 and LK 3054 Kioti tractors. I am in no way an expert on this subject, but have a mechanical background and years of experience growing up on a farm and owning tractors. First the background. I bought my...

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