1949 JD model A Hydraulics not working

[Lances]

3 point has no power, it will move up and down, but it won't pick up any weight, when trying to pick up any weight the safety plug shots out fluid, was told to use motor oil instead of hydro fluid, is that right? Any info please?

 

[J_J]

The only reason a safety plug would shoot out fluid is if the pressure exceeded the pressure limits. So something happen, like a larger dead weight load than anticipated.

Have you checked the normal 3pt relief?

Is there a way to reset it, or install a new one.

 

[Tx Jim]

What safety plug???? Are you calling a safety plug the plug(parts key 6) that's inserted in housing when no using a remote cylinder??

 

[Lances]

What safety plug???? Are you calling a safety plug the plug(parts key 6) that's inserted in housing when no using a remote cylinder??

Yes, that is the piece that comes out when I try to lift anything. What do you mean that is inserted in housing when not using a remote cylinder?

 

[Tx Jim]

hose(parts key 25) attached to plug(parts key 26) is what one uses when a remote cylinder is attached. All other times for rockshaft to operate plug(parts key 6) must be in place held in by spring loaded pin(parts key 17)