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Loader Lift Cylinders

D

Danfitz55

Member
I just had both lift cylinders rebuilt with new rods and seals. I put them back on the loader and cannot get them to operate correctly. The Right cylinder
will extend all the way before the left cylinder starts. They also return in the same order. I cannot get them to operate together. I didn't change anything
on the tractor. Also both cylinders make a squealing noise about 8 before they are fulling retracted. Just looking for some info. Thanks.
 
It's not uncommon for one cylinder to move a little easier than another. Obviously, they're not hooked to the loader frame. Hook them up fully, and they should be all right.
 
I had them hooked up to the frame. It seemed that the left cylinder was getting pulled and pushed by the right side and making a lot of squealing noise. It just seems strange because I have never had this problem before.
 
I think you should revisit the hoses to and from the cylinders. It sounds like you have some lines crossed. The base ends of each cylinder should be connected together and rod ends of both cylinders should be connected together.
 
So your loader frame must be twisting some? Then I'd say there is something wrong in one cylinder. Lots of messing around- but if you could plumb them individually, and just run them in and out, laying on the ground, hopefully one will operate smoothly/normally, and the other will not.
 
Do you have both ends hooked up to the loader frame? Or are the cylinders fully installed? There will always be a little difference in drag between cylinders which will cause one to move first. That will not affect its use when installed and the frame keeps them even.
 
First I would make sure the hoses are connected correctly, and check interior condition of hoses, no obstructions, no loose flap of rubber.
 
Go ahead and finish installing them, they will work together once they are mechanically tied together.

The squealing is probably a cushion to hydraulically slow the cylinder so it can't bottom with the weight of the loader against the end of the cylinder should it be dropped at full speed.
 
Fully install cylinders. Double check hoses,you may have inadvertently switched them.They should work fine once the air is purged. If not,you have other issues.As said,Hook up one at a time to check. If one simply doesnt want to 'play',you may have a faulty repair job.Is there a check valve/flow restrictor in the system somewhere?Just laying on the ground they wont 'cycle' evenly. The little differences in 'drag' will cause them to move at differening rates. They need to be fully installed. The weight of the loader acts as a'equalizer'.
 
If you have them fully installed and after 10 complete in and out cycles you do not see any improvement in operation I would suggest this. Disconnect the ram end of the cylinders from the loader. Then unhook the hoses from one cylinder and cap them operate the remaining cylinder to see how it acts, then do the same with the remaining one. I suspect you may find a problem with one or the other that needs attention from the rebuilder. And now do not take this wrong but sometimes simple things are overlooked. You have checked and filled the hydraulic reservoir?? And please when posting a question here include the make and model of tractor involved. Loader hydraulics and operation are fairly generic but it would still help.
 
I switch hoses once and it instantly killed the engine at an idle. One cylinder was pushing and the other cylinder was pulling.
George
 
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