This gives a little insight of changing hydro oil in the transaxle Snapper WB. The first thing I do is get the rear tires up on blocks so I can get under the unit.
Snapper has a guard that is mounted with three self threaded bolts that must be taken off before unscrewing the filter.
Now the tough part is getting the plug out at the top of transaxle. The
hex head tool is sticking out of it. This allows air to escape when you are refilling the oil. Unless this is removed it days hours to refill.
I first tried to get it loose with socket and no go. I had to get an air
wrench on it. I took this plug out two years in a row and it is still very
hard to remove.
Once it is drained then I put the jack stands under the back and fill it
up. Then I run the unit in place. Year four on this sw20 so still got fingars crossed on reliability.