Lenar 254 II Hydraulic pump weak

shanehobson · Oct 15, 2020

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 · Oct 15, 2020

shanehobson said:
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.