Another rookie fighting a hydraulic problem

[fishpredator07]

Wedge: I'm very curious how you guessed it was a Koyker...

 

[fishpredator07]

Birdman - finally got the time and the parts to try the air compressor test. First side was inconclusive, got just enough air through to get the attention of the balloon. The second side, however, blew it out! At least now I know which side to go after, and have the gland assembly to change out. Thanks for the advice, more after I replace the GA.

 

[fishpredator07]

Replaced the piston assembly and that seems to have fixed the problem. Since I did that last summer, questioning whether the parts have a short life or what the deal is. The ring was really trashed when I took it out.

Can't believe its over use because I'm not working it that hard. Snow removal and a little gravel in the summer.

 

[JL Sargent]

I would have to wonder whats up with that because I have the same loader Koyker 210 and I have never had to work on the cylinders. Mine is about a 94' model and I'm the original owner. I wonder if your cylinder wall might be damaged. Good luck with it.

 

[crashz]

I know this is a total different loader, but I'm having similar issues with my loader too.

This past weekend I found the left side dump cylinder over extends and bends slightly at full dump. The rod hits a stop on the loader boom, and the bucket stop hits a very worn area on the boom. This leads me to beleive that the stops are so worn that the cylinder is over extending and gonna 'kersplode if I don't remedy the bucket stops first. The Right side is not as worn, as stops just shy of the bending point. Bu tthart cylinde has develpoed a leak at the seal.

Long story short, check your full dump cycle and watch closely for any tweak in the bucket cylinders.

 

[fishpredator07]

Thanks fellas. Will check for the tweaks and be suspicious of cylinder wall issues if it persists. I did end up replacing the cylinder last year on the other side for a different reason so that's a logical next step.

 

[fishpredator07]

crashz - very interesting....watched my roll/retract very carefully last night. sure enough, the bar on the top rear of the bucket "rests" on the hydraulic shafts at full retract. That can't be right. Looks like there should be something on the end of the loader arms to stop the retract before it gets to that point and before that bar makes contact with the rods. I'll be looking into the koyker schematics to see if somethings missing.

 

[3RRL]

Different loader but similar problems as to what's been discussed in the last couple posts.
I too had the rods bend at full dump and had to do something about it.
Here's a thread about it where the problem was found.
Adding More Curl