Upgrade Hydraulic Pump

[B2400]

Hello All!
I was wondering if anyone has upgraded the hydraulic pump to a slightly larger capacity pump from a different model?
Despite the dealer telling me that the 180 degree oil temps are normal for my 2400, I've read that temps that high could be hard on the seals and such. I'm getting ready to remove the hydraulic pump and see if it has an abnormal amount of wear( Scoring, galling....) as the previous owner apparently didn't think maintenance was very important. /forums/images/graemlins/frown.gif Should the pump be in need of more than just the wear plate , I would like to upgrade the pump if possible. Would the pump from a B2150 interchange? 5.8 to 7.4gpm wouldn't be a huge jump but would certainly give me a little capacity reserve when using end loader and powersteering at same time. Anyone have thoughts on this, good or bad? Thanks!!! /forums/images/graemlins/grin.gif




Mike Allen

 

[Bird]

</font><font color="blue" class="small">( Despite the dealer telling me that the 180 degree oil temps are normal for my 2400 )</font>

I don't know anything at all about upgrading the pumps, but from previous discussions on this forum, my own temperature measuring on my tractor, and discussions with a dealer, I think hydraulic oil temperature of 100 degrees above ambient temperature is "normal"; i.e., 180 degrees would be the norm in 80 degree weather.

 

[art]

Mike, can't say that we have ever had any problems in the area that you think you do but the only problem we might have here is you want more hydraulics. The temperature is fine on any day unless you just started it ten minutes before and its 20 degrees below zero and it's gone to 180 degree's. We have never moved up to a bigger pump but we might change the relief valve setting.

 

[B2400]

Thanks for the reassurance! I may be chasing a ghost here but the hydraulics(ie endloader) seem so much stronger and responsive when the oil is still cool. After oil temps come up, the endloader doesn't seem to have as much power. An example would be: cold oil, the tilt on bucket will lift front of tractor right off of the ground at idle, but once warmed up I need about 1500rpm to get the same response. I've noticed in the shop manual that all pressures are given with oil temperatures between 104 and 133 degrees.
My other fear is there may be significant wear on the pump as the previous owner wasn't too worried about fluid maintenance from what I've seen. I know that a worn pump can elevate oil temperatures also. Again I'm just concerned for the long term health of my "Baby" and if I can improve it or prolong it's serviceable life , then I'm all for it!!! /forums/images/graemlins/grin.gif

 

[tj1954]

i upsized a mitsubishi tractor with a larger pump and had no problems. if you have a front end loader it should help. The hydraulic system may respond quicker with the larger pump. I dont think you will have any problems

 

[oldnslo]

Hello All!
I was wondering if anyone has upgraded the hydraulic pump to a slightly larger capacity pump from a different model?
Despite the dealer telling me that the 180 degree oil temps are normal for my 2400, I've read that temps that high could be hard on the seals and such. I'm getting ready to remove the hydraulic pump and see if it has an abnormal amount of wear( Scoring, galling....) as the previous owner apparently didn't think maintenance was very important.

180 degree oil in not unusual in mobil equipment. 250 degrees is when Buna-N seals start to get questionable

img]/forums/images/graemlins/frown.gif[/img] Should the pump be in need of more than just the wear plate , I would like to upgrade the pump if possible. Would the pump from a B2150 interchange? 5.8 to 7.4gpm wouldn't be a huge jump but would certainly give me a little capacity reserve when using end loader and powersteering at same time. Anyone have thoughts on this, good or bad? Thanks!!! /forums/images/graemlins/grin.gif

Mike Allen

Mike,
I am not sure what style of gear pump is used on B-series. My experience has been that if the gear faces are scored the pump is probably beyond economical repair. Gear pumps will typically leak more oil past the tips of the gears from the housing being wore that past the side clearances. The only time this becomes a factor of increased heat is when using the hydraulics. I.e. running the FEL with a load, etc. Other wise under normal operation there should be very little pressure loss in the system.

Yes your machine will run slower when it gets hot. Try a simple experiment. With the tractor running at a constant RPM. While the system is cold, time how long it takes to raise the FEL Fully with a known load. Get the system up to operating temperature and with engine at the exact same RPM lift the same load and look at the time difference. A difference of less than 10% in my opinion would be acceptable. More than that would require some investigating. NOTE: Do your very best to keep the RPM the same.

I do not know if different size pumps will fit.

Roy

 

[Haywire]

Did you notice that this thread was 8 years old?

 

[oldnslo]

Nope, just notice the last post and got sucker in...

 

[Benoit Seguin]

Nope, just notice the last post and got sucker in...

Hello all,
I realize this is an older post but I have the exact same question. Can the hydraulic pump (3 gpm) be upgraded on a B7100HST-D 1992?
I've seen few post mentioning that the pump from a B8200 would fit and on this post a B2150. Is this the case?
Thanks

Benoit