Hyd. trouble with a JD 410 C 4X4

lenray

Well-known Member
Was loading fill dirt with the hoe and it was working perfect. Ran it into a pile of fill and it wouldn't lift the load. Front bucket and the back boom worked VERY SLOW.
Replaced the hyd. filter--the old one and the cannister were very clean.
Started tractor up and after a slow start all functions starting working--the front bucket at maybe 90% and the front and back would lift the tractor.
After sitting 24 hours every thing front and back were VERY VERY slow again.Just like when it first happened.

The tractor and hoe were working perfect and just quit lifting---

Any ideas will be appreciated
 
While you're trying to operate the hydraulics does the hydaulic pump make any noise? I had a similar problem with jd 500c. Hydraulics were slow and steering was shaking. Could feel the pump was not producing enough pressure. I removed the front part of the pump and got a sticking pressure valve. Fixed the valve and solved the problem. Hope this will help you.
 
There is a chatter in the front hyd. pump and the hyd. lines vibrate. I replaced the destroke valve with the JD Plug---that was not my problem.
I want to put a pressure gauge on the front pump--where is it plumbed on the pump???

The hoe operates , but it isn't right.
Any other ideas????
 
Well,usually if the pump has no mechanical damage to produce the noise while operating then the pump is sucking air on the suction side or the oil pick-up is blocked.
 

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