3020 john deere

   / 3020 john deere #11  
Remove hyd filer,start tractor and see if any oil comes out. Trans pump should pump around 5GPM
 
   / 3020 john deere #13  
Roottonic never got back with what problem was?
I have same setup that had been doing the same thing only intermittently.
Just recently started to loose steering along with loader hydraulics.
The idle will smooth out when this happens.
Then idle will roughen up again and hydraulics will be back.
Fluid full, gauge reads good.
Will get into the manual and get into cold see what I can find.

Cheers
 
   / 3020 john deere #14  
Draagyn
How long since hyd filter was changed & sump screen checked/cleaned? What controls FEL the scv's or an ind hyd valve? Have you ever checked stand-by pressure? It should be 2250-2350 psi.
 
   / 3020 john deere #15  
I have not checked filter since I bought tractor about 30 hours ago.
I will try a new just so that I at least know when it's been done.
My manual doesn't say much about it. From what I can tell filter is on return line so I will loose very little fluid when changing?
From what I've read about sump screen on here is that it's a big job? Can't find info in manual.
FEL is on individual valves.
I will gather parts for stand by pressure test when getting filter.
Still waiting for warmer weather to wrench.
Thanks again Jim!
 
   / 3020 john deere #16  
Would you know what size fitting I need on pressure gauge to hook up to Pressure control valve?
 
   / 3020 john deere #17  
Easiest way to check stand-by pressure if tractor has rear remotes is to just plug gauge into rear breakaway coupler and activate SCV control lever. Yes hyd filter can be changed without loosing much oil. Filter is one of the cheaper parts JD dealer sells. AR75603 Filter Element ADD 7.96 USD
Checking sump screen requires an oil drain or a running shop vacuum hose inserted in hyd oil filler tube. Sump screen is located between hyd filter & rear axle housing on LH side.

Is loader valve teed into hyd system or plugged into rear remote? Does your tractor have Syncro-range or Powershift trans??
 

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   / 3020 john deere #19  
Remove FEL valve return line and aim hose in hyd filler tube now with both FEL levers in neutral start engine if oil flows out return line FEL valve is at fault.
 
   / 3020 john deere #20  
I haven't had time to run any tests but I did get around to changing the hyd filter last night. Only got about half hour test in but it's worked flawless so far. Thanks again for the help Texas Jim!
 

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