Hydrostatic Tranny Temperature

[kto434 108]

Newbie question:

 

I have a 1968 Charger with a Sundstrand hydrostatic transmission.  The tranny is smooth and quiet—no apparent problems.  However, I noticed the cast iron gets hot to the touch after about an hour’s mowing use.  Is that typical or may I have a problem?  Thanks!

[lynnmor 7,354]

They get rather warm.  Be sure that the cooling fins and the fan are clean.  Run the engine full throttle when mowing.

[pfrederi 17,885]

Sundstrand hydros  will run 180 when working hard...That is hot to the touch.  Like lynnmore said keep here clean and run her at full throttle  I blow mine off with compressed air if they are on mowing duty.

[kto434 108]

OK, thanks—got it.  I do keep the cooling fins and really the whole tractor very clean and used my leaf blower after each use to blow off debris/dust.  I will keep doing that too.  Thanks again and take care!