Bucket leaks FAST

[Kernopelli]

Quote

[ The cylinders on a FEL are plumbed in parallel, so only one needs to be bypassing to cause leakdown. Guess you missed that in your online hydraulics course. ]
You are very wrong here if you think a good cyl with a gate valve on the base end, and a weight on the rod side will leak down. Explain with your vast knowledge.

No hyd course required, just plain common sense.

It's OK to be wrong.

Not speaking for Kenny here but from reading his posts, I never read that he implied this scenario would be incorrect. You two are now talking about two different scenarios. He is talking about two cylinders---one good, one bad that are plumbed in parallel with the end of the circuit blocked/locked out/shut off..whatever. You are describing one good cylinder with the end of its circuit blocked. It's apples and oranges unless my way of thinking is wrong...and I'll admit right up front that it could be,I know less about hydraulics than either of you. In Kenny's scenario, I think the bad cylinder will pass fluid and the the bucket will drop until the displaced (leaking) fluid equalizes against the other (good) cylinder and throughout the circuit.

 

[J_J]

The gate valve simply eliminates the control valve, which might be leaking. If the gate valve is in the base of bad cylinder, then the fluid will bypass to the base end of the cyl, caused by the weight pulling on the rod and piston.

If you block off any one port of a good cyl, filled with hyd fluid, you should not be able to move the rod.

 

[AKKAMAAN]

I agree that the two cylinders are plumbed parallel, and if one have a bad piston seal, they will both drift!! Conditions see below!

 

[J_J]

I totally agree.

There are many different ways to test things.

 

[Big Bri]

Just to give ya'll a heads up on my problem.
well after finding that it was the cylinders i brought it to a local shop in Baton Rouge. Was informed that the nut inside the cylinders has come loose allowing fluid to escape. Told me they had to order some parts, i think to repack them and that i'll have my tractor back on Friday or Monday. Will be covered under warranty.
Just so i know, what is involved in repacking a cylinder? just so if it happens again out side of warranty i'd know what to do.
Thanks for every ones advice, and help

 

[wdchyd]

Big Bri,

Best to call the shop in Baton Rouge now and tell them you want extra seal kits while they have them apart.....save em for the future then you can use loctite on the nut....

Cheap Insurance!!!!:thumbsup:

 

[Big Bri]

Got my tractor back today and it's all fixed up real nice. The Fine folks at M&L Tractor in Baton Rouge were very nice, explained what went wrong and what they did to fix it. They also told me that i brought my tractor in just 2 days before my warranty expired on my loader.
Picked up some utd and filters while there.
Thanks for all your help.