Lenar 254 II Hydraulic pump weak

[Dave M7040]

And I did just notice a crack in one of the brass adapters.Thank God I don't have a chunk of brass in my brain!Wow,good info here,thanks again Dave.Again I buy all of the tees,adapters,valve,etc.,I might just be better off to haul the tractor to a heavy equipment place and have them check the pump pressure for me right off the pump-I wouldn't think they would charge me too much. ??
Mike

Mike
A practical alternative to hauling your machine somewhere, is to have a mobile mechanic come to you.

You would need to go to him with some photos and a description of what you want him to do so he arrives with the necessary fittings, or have him drop by at the end of his day and look to return later when he has the parts he needs.

You wont find a mechanic used to Chinese machines but you can get a good solid mechanic used to fixing farm tractors in the field or trucks at the side of the road,.

You likely split the brass adapter screwing something into it too far and that split it right away.

Dave M7040

 

[Leejohn]

Leejohn

I have all available, manuals for the Lenar and could send you the link to download them? Interesting reading, almost complete lack of info on some topics.

Dave M7040

No, thanks anyways. I have tons of manuals I haven't read yet.

 

[Greygoose]

Ordered a new pump out of China-problem solved.Loader works better than it ever did.Thanks for all the help though guys,this one was a head-scratcher!
Mike

 

[Dave M7040]

Ordered a new pump out of China-problem solved.Loader works better than it ever did.Thanks for all the help though guys,this one was a head-scratcher!
Mike

Mike
Thanks for the final chapter on this story.
It is really great when the one with the problem reports back on the solution. Too many just go away and never update.
How much was the pump?

Dave M

 

[Greygoose]

Thanks Dave,I got the pump for 74.77 delivered.Unreal,huh?While I was at it,from the same company in China I ordered all the filters on the tractor-fuel,oil,hydraulic,etc and a new water pump (mine was leaking).Total with 5 day special shipping came to 273.00 I believe.They did not have an air filter but I took a chance and bought one here in the states for a Mahindra 2525 and it is the identical filter.The Mahindra 2525 is pretty much a red Lenar 254II from what I have learned.
Mike

 

[Lenar254]

Greygoose .... I just found this thread and after reading the whole thing glad to see problem resolved. I have a similar problem in that everything works except that the bucket is sluggish after sitting for about a year. I replaced all the FEL hoses because a couple were leaking. There are no leaks, and the bucket will curl slowly but will not stay up. It will dump quickly. It appears that the cylinders work, but may be leaking internally, so the fluid is bypassing the seal between curl and dump chambers??
Hope someone can offer a suggestion, since all the other hydraulic functions seem to work. BTW, the Red River folks were very helpful and I received the Maintenance Manual, the Operators Manual, and The Parts book from them.

 

[Docc23]

Sorry for reviving this few month old thread. I too have inherited a lenar 274-1 that from what I read has basically the same components as the 254 II. I am having the same problem as Lenar254 member and would like some experienced insight. After getting the tractor from my Uncle for free because it wouldn't start after I figured out the problem with it not starting(being bad wiring) I have found that I am not getting proper hydraulic function to my FEL or 3pt lifts. Thanks in advance, and also any download links for the manuals would be greatly helpful.

 

[Docc23]

Well, I got the filter cleaned out, and the hydraulics are working great now! The bucket still curls down and I am going to chalk that up to being a bad cylinder so I'll have it swapped out soon.

 

[Dave M7040]

Docc23
Sent you a PM

Dave M7040

 

[Lenar254]

Sorry for reviving this few month old thread. I too have inherited a lenar 274-1 that from what I read has basically the same components as the 254 II. I am having the same problem as Lenar254 member and would like some experienced insight. After getting the tractor from my Uncle for free because it wouldn't start after I figured out the problem with it not starting(being bad wiring) I have found that I am not getting proper hydraulic function to my FEL or 3pt lifts. Thanks in advance, and also any download links for the manuals would be greatly helpful.

Here are the links for the manuals which I got from Gary at Red River parts:

https://spaces.hightail.com/receive...f4f0f8291/01 LE 254 II MAINTENANCE MANUAL.pdf

If you click on the "Dowload 3 files" link, you can save the .pdf files to your computer. I have yet to rebuild the bucket cylinders, waiting on cooler weather here in Texas to do that.

 

[shanehobson]

Thank you very much Lenar254 for the link to the manuals. I've download them and printed them.

My Lenar also has low hydraulic flow. We've tested it at about 25 litres per minute on one of the loader fittings. This is while the oil is cold, so we're expecting it to decrease as the oil warms up.
This test was done with the filter removed (it was fairly clean anyway).

Has anyone fitted a higher capacity hydraulic pump ?
I've found this pump on AliExpress which is for Lenar 254 and is rated at 16 MPA (rather than the original pump at 10 MPA).
CBN E314 16MPA High pressure gear pump hydraulic oil pump for Fengshou Lenar 254 tractor parts|Oil Filters| - AliExpress

Any advice from the audience would be appreciated.

Thanks
Shane
New Zealand

 

[sd455dan]

Thank you very much Lenar254 for the link to the manuals. I've download them and printed them.

My Lenar also has low hydraulic flow. We've tested it at about 25 litres per minute on one of the loader fittings. This is while the oil is cold, so we're expecting it to decrease as the oil warms up.
This test was done with the filter removed (it was fairly clean anyway).

Has anyone fitted a higher capacity hydraulic pump ?
I've found this pump on AliExpress which is for Lenar 254 and is rated at 16 MPA (rather than the original pump at 10 MPA).
CBN E314 16MPA High pressure gear pump hydraulic oil pump for Fengshou Lenar 254 tractor parts|Oil Filters| - AliExpress

Any advice from the audience would be appreciated.

Thanks
Shane
New Zealand

There was a thread years ago where a member went to the CBN-320 from a 312 or 316 I believe it was a different brand Chinese tractor though. member DoxfordJim if iirc

I have thought of increasing the volume on my Rhino (Shanghai) also but never ordered a pump.

There is a seller on amazon (Timeway) that will ship to us residents all in for under $125
but you need the full info like R or L rotation and which drive tang your pump has.


Amazon.com: TIMEWAY CBN E Type Hydraulic Gear Oil Pump Hight Pressure 16Mpa~2?Mpa Displacement 4ml/r~25ml/r Aluminum Body and Keyed Shaft (CBN-E3?8-FPR): Home Improvement

Affordable carries some pumps

Parts Center, Hydraulic Pumps, Jinma, JM-300 Series - Affordable Tractor Sales Company


Circle G also carries several

Hydraulic Pumps & Rebuild Kits | Circle G Tractor Parts

The more Volume the Pump has (in the same pump frame) will increase the pumps overall length, which may cause clearance issues on some tractors.

On mine it would require trimming the hood sheet metal.

Just something to keep in mind and check.

 

[sd455dan]

This thread over on CTOA may be the one i was thinking of

Topic: JM 64 Hydraulic Pump Retrofit | CTOA