Hi there.
I have a JD Z820A Zero Turn mower with 430h. This design was plagued with more than a few user experience and control issues. Basically, the ZT, specifically the hydros, left a lot to be desired out of the box resulting in an update campaign and even some dealer buybacks.
I've read various things that dealers have done to try and remedy the almost skid-steer like control experience.
There have been pulley updates, steering damper updates, release valve updates, etc.
One that really stuck out to me was an instance where an owner shared that the dealership replaced the High Viscosity (J20C) Hy-Tran with Low Viscosity (J20D) and they had fantastic results.
There are various points in the manual that says NOT to use low-viscosity in the hydros. I am attaching the sticker from my mower that shows this. Its possible I have an early rendition.
I called a JD Dealership and the parts person said they don't know why they would ever spec for this application and suggested the lower viscosity stuff.
I am torn as to what I should do. I am merely hours away from my hydro change and would like to remedy the drive-ability issues that I certainly feel. They tend to go away by the end of my mowing session but that's HOURS and take a good while until I feel like the oil is warmed up or whatever it needs to do.
Parker, the manufacturer of my hydros in this unit has their own oil-Parker HT-1000. Its pricey.
What do you think I should do?? Are there considerations I may be missing?
This hydro setup exists in other brand mowers and does NOT have this usability issue reported by JD owners. I can only assume the issue is oil related. Is that a fair assumption?
I have a JD Z820A Zero Turn mower with 430h. This design was plagued with more than a few user experience and control issues. Basically, the ZT, specifically the hydros, left a lot to be desired out of the box resulting in an update campaign and even some dealer buybacks.
I've read various things that dealers have done to try and remedy the almost skid-steer like control experience.
There have been pulley updates, steering damper updates, release valve updates, etc.
One that really stuck out to me was an instance where an owner shared that the dealership replaced the High Viscosity (J20C) Hy-Tran with Low Viscosity (J20D) and they had fantastic results.
There are various points in the manual that says NOT to use low-viscosity in the hydros. I am attaching the sticker from my mower that shows this. Its possible I have an early rendition.
I called a JD Dealership and the parts person said they don't know why they would ever spec for this application and suggested the lower viscosity stuff.
I am torn as to what I should do. I am merely hours away from my hydro change and would like to remedy the drive-ability issues that I certainly feel. They tend to go away by the end of my mowing session but that's HOURS and take a good while until I feel like the oil is warmed up or whatever it needs to do.
Parker, the manufacturer of my hydros in this unit has their own oil-Parker HT-1000. Its pricey.
What do you think I should do?? Are there considerations I may be missing?
This hydro setup exists in other brand mowers and does NOT have this usability issue reported by JD owners. I can only assume the issue is oil related. Is that a fair assumption?