JCB 8014 (1998) Control arm stuck

[Webs29]

Hello CMN, I am once again asking for your assistance. I have a JCB 8014 from 1998. I used it a couple of days ago and everything was working fine.
Come to use it today to find one of the control levers is stuck solid. It is the left hand control as you sit in the cab that controls the 360 slew and bucket arm in out. Left/right works fine to operate the slew but it absolutely will not move forward or back to control the bucket arm.
These pics show inside of the control lever joint and the arm that should slide up and down. Removed the screw from the joint but couldn't move the arm(I didn't want to try too hard though in case I made things worse).



Any thoughts? I do remember having to tighten up the screw in that particular joint a few months ago as it had worked itself loose but never experienced this before.

Thankyou

[essexpete]

Have you had the gator of the opposite lever/control to have a look and compare?

[Webs29]

I had that side off ages ago to apply some grease around the joints(same time the screw in the other side came loose) and it is working fine. The problem seems to be the rod in the second picture that is actuated by the forward/backwards movement of the lever seems to be stuck solid. I can only say it seems to be some sort of hydraulic problem, that's as far as my knowledge takes me unfortunately.

[essexpete]

More likely to be something in the linkage that has, if you like, gone over centre.
The joint in the last photo looks odd but I have not seen the set up.

[Slooby]

It's a spherical bearing rod end, aka 'Rose Joint'

The bolt is going through a ball set into the rod end which is skewed a bit.

A quick check you could do to see if it is the hydraulic valve block or the lever mechanism would be to undo the bolt from going through the rose joint disconnecting the mechanism and see if the lever then flops about, if it does then chances are the problem is in valve block. You 'should' be able to move the actuating rod if you put a screwdriver the eye of the rose joint to give you something to haul on. If there's movement in both then the problem could be an adjustment issue in that something is missaligned and stopping things from moving when bolted together.