Using thicker oil as hydrostatic transmission wears????

[lloydchristensen]

What symptoms start to show as a hydrostatic transmission starts to show its age?

 

[dex3361]

I have a swash plate design Hydro in my old Cub Cadet 129 that is about 40 years old and is still operates as the day I bought it 17 years ago. When they are wore they tend to not pull similar to how a clutch would slip and very much like when it bypasses through the relief valve.

 

[RickB]

What symptoms start to show as a hydrostatic transmission starts to show its age?

If it is properly maintained it won't show any symptoms. If you want to cause problems, stray from the recommended oil specification.

 

[IceStationZebra]

Thicker oil will create more heat, which can cause all sorts of issues. Taken to extremes you could also cause high inlet restriction and mess up the pump. ISZ