Planning for 4020 hydraulic fixes this winter

David G

Well-known Member
We got the dampener and coupler parts replaced, that got rid of the knock in the front.

The lift arms and implements attached to remotes will drift down after shutting down. Would you think this is in the remotes or SCVs?

There is a cavitation issue on the loader valve sometimes, gotta just diagnose it.
 

SCV's leaking down is i or more of the 4 poppet valves leaking in control body. On FEL shuddering have you checked,cleaned hyd oil sump screen? Have you checked hyd stand-by pressure.? I's set it at 2350 psi
 
(quoted from post at 03:15:15 09/25/14) We got the dampener and coupler parts replaced, that got rid of the knock in the front.

The lift arms and implements attached to remotes will drift down after shutting down. Would you think this is in the remotes or SCVs?

There is a cavitation issue on the loader valve sometimes, gotta just diagnose it.

Is your tractor a syncro-range or powershift?
 
Are the 3PH and hydraulics drifting down after the engine is shut off? That is normal, they did that when they were new. You can lower heavy implements to the ground when you shut it down to relieve pressure on the components and to prevent accidents.
 
what brand and model of loader? What brand,model and configuration of loader control valves? Where is the loader hydraulics supplied from and where is the oil returned to the tractor ?
 
(quoted from post at 12:26:26 09/25/14) what brand and model of loader?

AW come on b&d what's the loader brand got SQUAT to do when it comes to the hyd operation as any type valve can be on any brand loader? David has previously stated that the loader valve returns to a ported filter cover.
 

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