Kubota Won't Start, Pissing Loader Cylinder and More, Oh My!

[Oldtoad]

One end of the cylinder is 0.375" too large.
The animal wants to grind the extra off. The gentleman want to mill it down.
What do you say?

 

[ROUSTABOUT]

What he’s trying to say is, hydraulics have a lot of pressure and can inject fluid through your skin without puncturing it. I have heard it’s a painful way to die; at the very least you can lose a limb very quickly.
Don’t mess around with hydraulic leaks.

Ive known three people trying to save an arm for over a year. Because oil or grease injected in finger or hand. It's a bad deal.

 

[Oldtoad]

Promise, I will be careful.
Called a machinist to mill some off the cylinder cross tube ends.
Guy says he is booked for a year.

 

[Oldtoad]

New cylinder installed, needed to stretch a hose 2" but it was cracked anyway, $35.
Now to figure out why it will not start.

 

[Oldtoad]

Started after moving the pto switch a bit. Happy, happy.

Do I have to drain the air out of the hydraulic lines after replacing the cylinder?