hi we're looking for any segestion about Ingersol Rand VR-326 Telehandler in this case. When the machine is working good if push the brake shut off byself. Already check the electric connections and found jumped the directional control valve. But if we unplog this connection when try to move fordward or backward the machine does over presure in the hydraulic system.

Manuals can be found on Skyjack dot com.
They bought the line from ingersoll but they do a good job of still supplying parts and manuals for the old IR units out there.