Kubota KX033-4 Thumb will not retract

[m7040]

The thumb will clamp down but will not retract. Wondering if someone could help with best way to trouble shoot?

 

[groundcover]

Do you have a splitter valve for the thumb that could have gotten bumped ?

 

[m7040]

On excavators it is not done with splitter valves

 

[Seven Gables]

If that machine has both 1 way and 2 way flow to the auxiliary lines make sure you’ve got 2 way selected. If it inadvertently got 1 way flow selected theirs your issue

 

[setxjeff]

Reverse the lines ,this will check if it’s fittings or valve or cylinder

 

[hayden]

If that machine has both 1 way and 2 way flow to the auxiliary lines make sure you’ve got 2 way selected. If it inadvertently got 1 way flow selected theirs your issue

This is the first thing I'd check too.

 

[m7040]

it was indeed the issue.

This is the first thing I'd check too.

Somehow 1 way flow was selected