1020 rockshaft no lift with no load.

ccoash

New User
Hey everyone,
Here's what I've got going on--

When I raise the lever, the rockshaft is extremely slow to raise, or doesn't raise at all unless you put some weight on it. With my 800lb ballast hanging from it, it'll operate just fine unless I lower it to the ground, then when I go to raise it, its very slow until it starts to take on the load, then lifts quickly.

It will raise without load if I bump the loader control valve after I raise the rockshaft control lever.
I've got the rockshaft connected to the power beyond port of the loader valve. The loader valve locks out the power beyond when either of the loader valves is open.


Anyone know where I should start looking?

oh yea..it doesn't seem to matter where the load control lever is. Same issue with either of the three positions.
 

Closed center hyd's do not need or use a power beyond type valve. Power beyond valves are open center which is a No-No on CC hyd systems. Photo shows how JD recommended to attach hyd loader valve to CC hyd system.

31570.jpg
 

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