JD 300X loader problem.. 3320 tractor

[kennyd]

I somewhat understand your logic Kenny, but I am quite certain about my observations. Are you saying that I should not be seeing what I am ? Or that there are different types of leak down?

JB.

I am not sure I can explain it better...

If the valve is in neutral, then the pump can't keep the loader from drifting down. It can't just pump a little fluid to the loader to keep it at the same height.

I cannot explain the symptoms you see:confused2:

 

[JB4310]

I am not sure I can explain it better...

If the valve is in neutral, then the pump can't keep the loader from drifting down. It can't just pump a little fluid to the loader to keep it at the same height.

I cannot explain the symptoms you see:confused2:

I know enough not to doubt you, so can there be some leak at the valve, that would prevent leak down when pump was running?

Otherwise I have to question my own observations, but I seem to remember others with similar symptoms.

JB.

 

[Red Horse]

To "Red Horse"~~~~

My 3320 has 470 hours, probably more than half w/o front loader being used.

Ouch! Not good-my 3320 300CX has 700 hrs- and a lot of those hours are loader time- no leaks-uneducated guess-you have packing that was defective.

 

[J_J]

Some valves leak more than others. If the cyl are good, then it is a worn spool.

It doesn't matter if the engine is on or off, with a leaking cyl or valve. More of a load, faster leak.

You could install a needle valve in the curl hose, and tilt the bucket up and close the needle valve. If it tilts down, the cyl is leaking internally. Do the same with the lift hose. Install a needle valve in the lift circuit, and raise the lift arms, and close the needle valve. If the lift arms descend, then the lift cyl need some work.