553 FEL question-cylinder o-ring?

[Rmd8136]

I have a 5065e 4WD with 553 loader, 90 hours and no complaints. I noticed today an o-ring on the upper mast end (extension cylinder ) around the cylinder but not up against the seal end ? I see no other corresponding o- ring on the other side or either of the curl cylinders. Is it supposed to be there? Do they crack and fall off? I don't see any abnormal leakage , just some dust sticking to the mast steel.i tried to attach pic

 

[beenthere]

Maybe for spray painting at the factory.
I recall seeing them when FEL was new, but don't see them now.

 

[Rmd8136]

So they don't perform any sealing function? This one is cracked and will fall off

 

[hosspuller]

I have them on several cylinders too. no function I've missed.

 

[Rmd8136]

You mean several are missing or you have 3 of 4. I am counting 2 boom cylinders and 2 curl cylinders. I am missing 3 of 4 with 4th one cracking and soon to fall off. I am thinking they must have been to keep paint out of cylinder ends and don't do anything that matters

 

[hosspuller]

You mean several are missing or you have 3 of 4. I am counting 2 boom cylinders and 2 curl cylinders. I am missing 3 of 4 with 4th one cracking and soon to fall off. I am thinking they must have been to keep paint out of cylinder ends and don't do anything that matters

Have 4 rings. On boom & curl cylinders. They seem to just be there. Perhaps they protected the rod seal prior or during cylinder assembly...

 

[Rmd8136]

Are yours up against cylinder seal or just riding arbitrarily on cylinder plunger rod like mine not serving a function? My tractor is about 14 months and 90 hours old. Looks like they just age, crack and fall off. I will ask dealer if they need to be replaced. I am guessing no

 

[Zebrafive]

Those are paint rings. To prevent paint from seeping into the cylinder. The setup tech is supposed to cut them off during the install.

 

[kennyd]

Those are paint rings. To prevent paint from seeping into the cylinder. The setup tech is supposed to cut them off during the install.

^^^^^^^^^^^^^^^^
What he said...they are just there to keep the paint off of the wiper seals, they should have been removed at setup.

 

[Rmd8136]

Thanks guys. If they all 4 were gone I would not have known to ask. They looked insignificant; no leaks. Just makes you wonder when you see one.