How does the joystick work on a loader?
This bolt holds spring tension on the spool which keeps the spool in neutral when there is no joystick pressure. The bolt also gets pushed into a detent ball when the loader is put into the float position.I took some photos which will follow.
What kind of project is it to repair a joystick control valve?
Here’s a component that has been mentioned at various threads and folks have asked what kind of project is it to repair, the simple joystick control valve.
What causes a joystick control valve to leak oil?
From excavators to skidsteers, variations of this type pilot oil control valve are used on many machines nowdays, and the most common problem they have is leaking oil from the spool pistons at the top of the valve. It’s typically just a tiny u-cup seal for the pistons causing the leak, replacing that seal is the challenge.
How big is the hole in a joystick control valve?
Differences don’t stop there, the actuator pistons, the hole on the inside of them that the spool head fits into, two of the pistons have a 3/8″ deep hole, the other two have a 7/16″ deep hole. Hey, 1/16″ makes a difference in how a unit like this operates.
What do you mean by upper controls are not working?
This answer was rated: the upper controls are not working.before that the movement… the upper controls are not… the upper controls are not working. before that the movement of the boom was very slow with the upper controls only and it made a noise like is loosing air or so.
Why are the upper controls on my boom not working?
The most likely cause for the slow functions from the upper bucket is your rotary manifold seals are leaking and allowing pressure to bypass. The rotary manifold is what allows 360 degree rotation of the boom. Also check the relief valve cartridges in the control valve for damaged o rings or debris. Let me know.
https://www.youtube.com/watch?v=Ssxzv9j_ak4