MF 231S FEL hydraulic pump problem

[fireman4074]

I have MF 231S with FEL. The hydraulic pump that operate the FEL just stop working, Pump is located in front of tractor as noted in picture. Pump has a shaft that goes into something I guess that turns with the crankcase. With the motor off, I can turn the shaft freely with out any problem which mean something have happen inside that area. Have anyone have this problem if so what is the process of fixing this issue. Thanks in advance

 

[Peter 315]

The other end is bolted to the crankshaft , should have a small u joint on it

 

[fireman4074]

The other end is bolted to the crank shaft , should have a small u joint on it

Okay Thanks but what all do I have to remove to get to it like radiator.

 

[Peter 315]

Can you look down from the top or side to see the front of the engine

 

[Peter 315]

Might look like this

 

[fireman4074]

From the side all i can see is the fan belts and bottom where crankcase and shaft is under radiator and more stuff.

 

[fireman4074]

Might look like thisView attachment 546663

Would I have to remove all that to get to end of shaft???

 

[Peter 315]

Did you look at the picture its there , Can you pull the shaft on the engine is it loose , It should be tight no slop

 

[Peter 315]

I dont know if you can get in there to work with the loader arms in the way. You should not have to take it apart like that Just a picture so you know what to look for

 

[fireman4074]

Did you look at the picture its there , Can you pull the shaft on the engine is it loose , It should be tight no slop

Yes it do have slack. In one of my pic, you can see that shaft had enough shaft for me to push it back from the pump without any problem.

 

[Peter 315]

Something is wrong on the other end The spline end should only move a little when the tractor flexes, You should not be able to push it off the pump , Can you turn the shaft by hand ? It should not turn

 

[fireman4074]

Something is wrong on the other end The spline end should only move a little when the tractor flexes, You should not be able to push it off the pump , Can you turn the shaft by hand ? It should not turn

It turn easy with hand

 

[Peter 315]

You will have to get to the front of the engine the u joint or lovejoy coupling is broke can you get a good picture of the front between the fan and engine of the shaft ?

 

[fireman4074]

You will have to get to the front of the engine the u joint or lovejoy coupling is broke can you get a good picture of the front between the fan and engine of the shaft ?

I will try tomorrow and get back with you

 

[Peter 315]

OK ....

 

[fireman4074]

I will try tomorrow and get back with you

This is best pic that I could get

 

[fireman4074]

You will have to get to the front of the engine the u joint or lovejoy coupling is broke can you get a good picture of the front between the fan and engine of the shaft ?

This is best pic that I could get

 

[Peter 315]

Can't see much If you unbolt the pump leave the hoses on can you pull the shaft out?

 

[PILOON]

Looking closely at the first pix (left one) something is missing.
U stated pump shaft moves freely.
The other end (under the rad), does it turn with engine running? if so that end is OK.
Suggesting that the coupling mechanism is gone.

Could this pump installation be a home brew? might the coupling simply been a length of hydraulic hose clamped onto the 2 shafts? (an old DIY coupling trick).

Just a thought.

Quote---Yes it do have slack. In one of my pic, you can see that shaft had enough shaft for me to push it back from the pump without any problem. ---

?? does the pushed back shaft have internal splines that match the pump splines?
If that is the case the shaft might just have slipped off of the pump splined shaft in which case U might just be missing a set screw that locks the splines together (or it loosened).
See if you can't slide forward the engine side shaft and fit it onto the pump spline.

 

[fireman4074]

Can't see much If you unbolt the pump leave the hoses on can you pull the shaft out?

I can not pull shaft out through hole. I have taken radiator off. I am thinking that I might have to take front end completely apart.