1660 electric over hydraulic head settles

[BBB427 0]

I have a 91 1660 combine electric over hydraulic my head settled a little bit last fall now it is settling rather fast where is the first place to start thank you

[Jeff-C-IL 406]

If the cylinders are not leaking out the end (internal seal problem) you need to repair the valve.   One of CIH techs can probably tell you exactly---I think there is some kinda little poppet that is sticky or leaking.

[BBB427 0]

Yes nothing leaking on the outside thank you

 

[SDman 648]

The yellow oil is the trapped oil in the header lift cylinder circuit in the header valve. I think I circled all the possible places for oil to leak internally in the valve.

[BBB427 0]

I  took the office and poppet apart there is a grove on the poppet so I think that is my problem so  I will order them thanks

[pcdoepping@comcast.net 0]

I have a 2188 the head wont go up and down but it will tilt left and right and auger won't swing but I can here the solenoid working for the auger and stripper plates wont move either I've tried jumping the oil pressure sending unit and didn't help any ideas im trying to avoid taking this pos to the dealer 

[BBB427 0]

Thanks SDman I replaced the poppet and orifice and it's been up for 8 hours and hasn't moved so that must have been it thanks for the help