B3300su rear axle vent tube

dtherrien · Dec 6, 2014

Hi,
I have a small leak on the right side of the rear axle. It has become worst over the last two months. Not that it leaks alot but i want to fix it this winter.
I started to look for the vent tube to see if it is plugged up but cant find it, or even if it has one.
Does anybody know if it does.
I know the filler cap/plug doesnt fit tight so am thinking that is where it breathes??

Also how big of a job to pull the axle.
I know i will have to remove the backhoe and sub-frame.

Thanks

s219 · Dec 6, 2014

If it's like other Kubotas, it will be a hook shaped tube (like the top of a cane) with a hole in it. I have seen them on the back upper surface of the rear case, and under the seat.

kuboman · Dec 7, 2014

My B3200 has the vent in the filler cap which is behind the seat. Betting the B3300 is the same.

dtherrien · Dec 8, 2014

Koboman, On your 3200 how is the vent on the filler cap. Is it a hole or an actual vent tube.
My 3300 has only a rubber plug for the filler cap. It doesn't fit in tight...it kinda snaps in but once in you can spin it around.

Just been thinking my axle leak could have started with plugged vent as i only have 300hrs on a 2010 model.

kuboman · Dec 9, 2014

dtherrien said:
Koboman, On your 3200 how is the vent on the filler cap. Is it a hole or an actual vent tube.
My 3300 has only a rubber plug for the filler cap. It doesn't fit in tight...it kinda snaps in but once in you can spin it around.

Just been thinking my axle leak could have started with plugged vent as i only have 300hrs on a 2010 model.

I have a rubber J tube on my filler. If you don't then you must have a vent elsewhere.