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JD 720

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gerald turner

New User
Just drained about 15 gal. of water and oil from the trans. I am the second owner and I know the tractor has never been under water. Could rain water enter the trans? The tractor runs good but is a little hard to shift. I am going to flush the trans. and fill with 90 wt oil. Just wondered if any one has encountered this condition.
 
Can not say for sure on that tractor but a lot of tractors can get water in to them by way of the shifter and other such areas. Rain does always seem to find ways of getting into places that is should not be in
 
if you have ever seen the outside of your tractor sweat on certain high humidity rain days after a cold spell . It does this on the inside of your transmission to.
 
And the resulting water sinks to the bottom of the housing, where it is covered by oil and prevented from evaporating on the warm days. So the water just continues to accumulate, year after year.

If you don't use the tractor much, you needn't replace the gear lube very often (it gets spendy)- but you should drain off the water every spring, by loosening the drain plugs carefully when tractor has been sitting for a long time, letting the water on the bottom run out, then tightening when you start getting oil. You don't want to do this after tractor has been run, and the water mixed with the oil.
 
Is your tractor shedded? I have had problems with mine and found out that the top of the transmission had been removed and they did a sloppy job of putting silicone in place of the gasket when they put it back together. So whenever it rained or snowed I would get alot of water in the transaxle. Fixed it last fall so I will find out soon if I fixed it or not.
 
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