4300 Air in lines

[cowboyffa84]

Ok my tractors gaskets were no good and all my hydraulic fluid drained out when it was parked I replaced all the gaskets and put hydraulic fluid back into the tractor now when I raise my bucket it bounces, kinda like its having spasms.

I raised the bucket all the way up and down a few times I was told that's how you work the air out of the lines but it still does it, what am I sposed to do? How do I fix it?

 

[winston1]

Exactly what gaskets were bad? I ask wondering if you could be sucking air somewhere?

Your system should be self bleeding. Maybe you haven't worked it enough?

 

[cowboyffa84]

The gasket where the rear axle meets the tranny housing it was pretty much gone and then the pto lift housing was leaking under the seat.

Most my the pressure release tubes coming out back there was clogged i had to straighten then out and drill them out just to unclog them.

 

[cowboyffa84]

How long are you sposed to work it to work the air out of it?

 

[winston1]

I couldn't put a definite time on it but I would say not more than 10 minutes. If it isn't out by then you are sucking air somewhere. That is if air is the problem.

 

[cowboyffa84]

I noticed theirs a pin sized hole in one of the loader hoses that shoot out fluid when i raise the loader all the way up could that be it?

 

[rekees4300]

Any leak in a FEL hose must be repaired. Replace the hose. Be careful because the fluid is high pressure and can cause injury.

 

[winston1]

I doubt the pin hole is the cause of jumping even though it should be repaired. That is on the high pressure side and I don't believe it would cause spasms.

Did you have any part of the suction line apart when doing your repairs?

 

[kenmac]

When I had all of my lines off to replumb & install the grapple. It didn't take more that a 5-6 times (if that many)of raising & lowering & opening & closing the grapple to bleed the lines

 

[cowboyffa84]

The pin size hole was in there b4 i changed all the fluid, and it ran fine before I changed it, other then it being real slow.

The only thing I done was drain what was left of the fluid out cleaned the wire filter that was inside there, and replaced the gaskets then put the axle back on bolted it all back and filled it up let it sit for an hour then started it up and it was the way it is now

 

[winston1]

If you are confident the jerkiness is caused by air in the system you are going to have to find out how that air is getting in there. I am completely unfamiliar with a 4300 so this is probably going to sound like a dumb question. Just where is your screen? Is is low down in the transmission? Do you have a manual? Does the 4300 have a geared transmission or powershift?