YM2210 Hydraulics

[robin824]

I need to add this. Ym2210
Hydrogen stopped working. Drained hydro fluid, it's was BLACK!
Pulled screen BLACK. Cleaned reinstalled. Added oil. No hydro.
Looking around saw the hard metal return line, it has a piece cut out and filled in with rubber hose. It was pitched, took it off and it was like desolved. Replaced with new hose and worked just fine. Note I had been bush hogging, and a limb must have hit it, but it was gone anyway. Just incase this .might help someone..

 

[bmaverick]

I need to add this. Ym2210
Hydrogen stopped working. Drained hydro fluid, it's was BLACK!
Pulled screen BLACK. Cleaned reinstalled. Added oil. No hydro.
Looking around saw the hard metal return line, it has a piece cut out and filled in with rubber hose. It was pitched, took it off and it was like desolved. Replaced with new hose and worked just fine. Note I had been bush hogging, and a limb must have hit it, but it was gone anyway. Just incase this .might help someone..

I think if you build up too much pressure in the Yanmar, it will go off like a Hydrogen bomb.





OK, I'm be serious now.

After the BLACK goo was drained, did you RINSE out the entire hydraulics with DIESEL?
With the diesel in there, work the tractor thru all gears and ranges at low idle.
Drain all the diesel out. A residue is fine inside.
Clean the hydraulic filter.
Put it all back together.
Refill with the correct fluid as mentioned below.

ONLY use hydraulic fluid that meets JDM J20C. period. Never compatible with or stating recommend.