Welcome to DT!
I moved your thread Steve, no problem...
A few questions before some answers:
When was the fluid last changed?
Is it clean and clear looking?
Does it look foamy?
What type of fluid?
Do you have the service manual?
Possible problems:
Your problem is either the linkage, or the "load checks" in the valve.
>Linkage must be lubricated and not binding with no excess play in the joints. Fluid Film is a great lubricant for these linkages. See the first picture attached.
>The load checks are supposed to keep the pressure in the cylinders until there is a positive pressure applied to the to keep the load from dropping like your are describing. Unfortunately for the 4x10 series JDParts does not show these load checks very well, so the second picture attached is from a 4200 tractor, part #53 is the load check. The reason I asked about the fluid is that if there is/was water in it then the load check or spools could be corroded and sticking.
I moved your thread Steve, no problem...
A few questions before some answers:
When was the fluid last changed?
Is it clean and clear looking?
Does it look foamy?
What type of fluid?
Do you have the service manual?
Possible problems:
Your problem is either the linkage, or the "load checks" in the valve.
>Linkage must be lubricated and not binding with no excess play in the joints. Fluid Film is a great lubricant for these linkages. See the first picture attached.
>The load checks are supposed to keep the pressure in the cylinders until there is a positive pressure applied to the to keep the load from dropping like your are describing. Unfortunately for the 4x10 series JDParts does not show these load checks very well, so the second picture attached is from a 4200 tractor, part #53 is the load check. The reason I asked about the fluid is that if there is/was water in it then the load check or spools could be corroded and sticking.
