Hydraulic problem

XPAD · Post by **XPAD** » Fri Jul 23, 2010 6:24 pm

I am restoring my super dexta 1963 diesel model and i have some troubles with the hydraulic system. When i lift up the arms without any load..... the arms plays up and down for 4 cm at any possition continuously.
Why that happens ?

Post by **Brian** » Fri Jul 23, 2010 9:17 pm

Sounds like the lift is correcting. This is due to either an oil leak internaly or linkage out of adjustment.

XPAD · Post by **XPAD** » Fri Jul 23, 2010 10:15 pm

Thanks Brian for your quick replay !!

But i have change the piston seal and nothing happens....
So how can I make the correct linkage adjustments ?
And for the internal leak where do I have to search ?

john.n · Post by **john.n** » Fri Jul 23, 2010 11:18 pm

is this your problem?
http://www.dailymotion.com/video/xd2ug7 ... _lifestyle

XPAD · Post by **XPAD** » Fri Jul 23, 2010 11:22 pm

Yes !! Yes !! That's my problem but the up and down thing is not so fast. It makes this every 2 seconds.
How can i fix this problem ?????

Post by **Brian** » Sat Jul 24, 2010 7:25 am

Lift the arms to the top, stop the engine and pull out the auxillary service knob.

What happens? Does the lift drop or does it stay up?

If it drops, problem is piston seal, ram cylinder safety valve, ram cylinder "O" rings.

If it continues to drop, the problem is control valve, unload valve, check valve.

Bent linkage/linkage adjustment is covered in an article on the Wiki. (fordsontractorpages and dotty are the codes you need to access).

Do you have a long/heavy implement on the arms?

XPAD · Post by **XPAD** » Sat Jul 24, 2010 9:30 pm

Hi Brian

I don't have implement on the arms at all. I just bought this tractor and start restoring it.

XPAD · Post by **XPAD** » Fri Jul 30, 2010 11:41 pm

I found a used one hyraulic system from a store here in Greece and I manage to replayce it. Now everything works great !!!
Now I have to paint the tractor..

Thanks a lot my friends for everything.