What is the common problem you encounter with your excavator?

[George]

Claw won't stay open. I put the bucket back on, and now my claw won't stay in the upright position; it keeps closing on its own. It's never done this before in the 6 months of owning it.

 

[Buildscope]

This could mean you have air trapped in the hydraulic line for the claw cylinder, or you might have a problem with the check valve or the seals in the cylinder itself. Air is the most common and easiest fix. Try cycling the claw fully open and closed several times to bleed any air out.

 

[Mr.LiftOperator]

Same here, I've had mine do something similar and it edned up being a little air in the hydraulics-quick cycle fixed it. Hopefully yours is just an easy bleed too.