Loader tough controlm and "Jerky" when lowering

[paine]

Loader tough control and "Jerky" when lowering

I have a Case DX33 Farmall which is the same a the New Holland TC33DA. It has the 14LA loader and the tractor has around 1200 hours. In a different post about a HST noise issue I mentioned that I have not yet changed the hydraulic fluid since I have owned it which is only since fall of last year. As far as condition the tractor could almost pass as new so I would assume if the PO took the time to clean and wax it he would also change all the fluids on time. I plan on changing all hydro fluid and filters ASAP but I am trying to pry to money out of the old lady's hand for AMSOIL. That stuff is not cheap but it would also help with the cold temps I get in our Michigan winter.

The loader recently has become a little tough to control when lowering, and once in a while it will start to bounce or get a little jerky on the way down with either a loaded buck or empty. The only think I remember changing since this started is I put a little penetrating oil on the joints on the loader joystick. Any ideas on what would cause this?

 

[davesl708]

My BX had not had the hyd. oil changed by the previous owner. The FEL had the same problem and sometimes would not raise.
Changing the fluid and flushing the system out cured the problem. The dirty oil clogged the spools in the control valve.

 

[paine]

My BX had not had the hyd. oil changed by the previous owner. The FEL had the same problem and sometimes would not raise.
Changing the fluid and flushing the system out cured the problem. The dirty oil clogged the spools in the control valve.

Thanks for the reply, I forgot to mention that the loader is not weak as far as I can tell and it only acts up when lowering.

Ill try the fluid and go from there...

 

[hawkeye08]

I'm getting some jerky FEL operation on my Kubota now (usually after it is warmed up), it is time for hydraulic oil and filter change. I expect it will take care of it.

 

[paine]

I'm getting some jerky FEL operation on my Kubota now (usually after it is warmed up), it is time for hydraulic oil and filter change. I expect it will take care of it.

I hope it cures the problem for us both! Good luck. I always get a little stressed when tractor problems (diesel truck also) come up because parts are so expensive these days!

Dang typo in the the title, why can I not change that!?