Backhoe Where did this O-ring come from?

[roozter]

Hi all,
New BX23S owner here. I have already found some great info on this forum, thanks!

I tried searching multiple keywords, but I cannot figure out where this O-ring came from, or if it was just laying around and fell off when wiping down?

So I was wiping off residual grease around the top of the swing cylinder pin on the BH boom and saw this O-ring fall to the ground. Is it important? Do I need to replace it? Where does it go?

 

[Paul Thornton]

I believe it was put on to keep paint from seeping into the cylinder, not necessary now.

 

[roozter]

Thanks! I was hoping it was not an issue. I did find a version of workshop repair manual and when reading about removing, rebuilding that cylinder I did not see any type of seal or O-ring in that area. I'll also call the dealer to see what they say.

 

[Michael In Tennessee]

I'll also call the dealer to see what they say.

No need. Messick's even has that info in a video somewhere. You are good to go.

 

[k0ua]

Yep, we all had them and they all "rot" and fall off. No problem, nothing to see here.

 

[roozter]

Mystery solved! Thank you! Here is the Messick's video: Why is there a loose o-ring on my hydraulic cylinder? - TMT - YouTube

 

[k0ua]

Mystery solved! Thank you! Here is the Messick's video: Why is there a loose o-ring on my hydraulic cylinder? - TMT - YouTube

Well, there you go. Hang around and check in once in a while and show us what you are doing with your machine. Pictures are always welcome.