Hydraulic mystery

[SPYDERLK]

OK, I switched the connections and the tilt controls lifted the bucket, but the lift controls didn't tilt the bucket. I switched them back and the it's the same as it was...lift works, tilt doesn't. That's really strange.

Is the bucket tilted all the way out and wont curl? ... blown bucket cylinder.
larry

 

[J_J]

I believe the nut on the bottom of the piston in the cylinder has come off and fluid is just flowing through the piston.

The test you did proves the valve is good.

So either the nut is off or the seals are gone.


If you take one hose off the cyl, and engage the lever.

 

[Leejohn]

If the cyls aren't bent i would guess a piston is off one of the cyls.

 

[gengine]

If your still watching JJ, could that be only one cylinder is blown, therefore the one good cylinder isn't holding, while the bad cylinder is letting all the fluid blow by without building any pressure to dump/curl in both cylinders?

 

[mtjag]

The bucket is completely rotated down. It won't curl. I put the bucket down and backed up until the bucket rotated and locked. Then I lifted the bucket to it highest point. When I then try to extend the bucket it works a little. But when I try to rotate it back it does move about 2 inches then starts rolling over (back down to the completely rotated state) and you can stop it.

 

[J_J]

If he took the hoses off the one cyl and capped them, he would find the bad cyl.

The good cyl would probably tilt the bucket, unless he only has a single cyl for tilt.

 

[J_J]

If the nut has come off and the threads are still good, clean it up and use Loctite RED or blue on the nut, and re-tighten or torque it down.

 

[mtjag]

The bucket is completely rotated down. It won't curl. I put the bucket down and backed up until the bucket rotated and locked. Then I lifted the bucket to it highest point. When I then try to extend the bucket it works a little. But when I try to rotate it back it does move about 2 inches then starts rolling over (back down to the completely rotated state) and you can stop it.

Sorry, you can't stop it once is starts back down.

 

[mtjag]

If he took the hoses off the one cyl and capped them, he would find the bad cyl.

The good cyl would probably tilt the bucket, unless he only has a single cyl for tilt.

I have two cylinders for tilt and two for lift
Thanks for that suggestion. That will be my next solution

 

[gengine]

Good to know. Always learning here!