I have a ct450 I drained the front axle for 2 days. When i filled it back it took 5 quarts, and the ball was at the top of the sight glass. Drove around for 5min and the ball never moved. What's the deal the book says 8 quarts.
Bobcat CT335 + John Deere 1023e (former owner of Kubota BX2370-1, John Deere 5210, and Ford 2000)
Check the wheel ends of the front axle. I had to pull the plugs on top by the tires to get 7 quarts into my front axle. They didn't seem to fill by gravity.
It takes longer running time than the book says to works its way down. When I did mine the ball was clear to top with 1.5qts still to put in. Ran it around to about 15 minutes and ball still at the top. Thinking I had not gotten all the old oil out, I took it out and mowed for an hour or so. When I came back in and parked the ball was at the bottom, so put the other 1.5 qts. in and fill to about 3/4 of way to top of sight glass.
My 225 only calls for 4.75 qts. I got most back in 4.5 qts.
There is vent in front axle. It is hard to see, but a hose comes off the top center of the axle and goes up in under the radiator so it is better to error on the over full side than under filled. The vent will allow for expansion so not to blow a seal. If way to full it may drip some oil out there.