Thomas 133 skid steer

I need to replace the rear sprocket in the right side chaincase. How do you get the sprocket out. It looks like you have to remove the drive motor and brakes. Is this correct?

The sprocket on the axle? I had a guy take my axle out to put a speedy sleeve on it for me in his shop. The drive motor didn't have to come out. The book shows some special tools, an axle installation tool, a seal installation tool and an axle remover. Got it done with out any of them. Axle remover is just a slide hammer set up that bolts onto the hub. The axle has a nut with a cotter pin through it and the sprocket has keys(3 I think) to hold it on. I think he might have split the chain to get the axle out. Sorry I can't be more help. It was done about 11 years ago but the drive motor didn't have to come out. The book might even say the drive motor has to come out but I know mine never came out. Mine was on the left side though and the motor is more towards the front. I've had to fix the chain adjuster and the book says to take the motor out as well but I just took the E brake disc off for more room. Not much room to get at the chain adjuster on the left side. I've found that if you hear a clicking sound, especially when backing up, you have a loose drive chain and it's hitting the chain case. The 3 5/8" grade 12 bolts for the chain adjuster will break if you try to do any hard digging with a loose chain. I think the fact that a piece of key stock is welded to them makes them break easier. BTDT I made my own bolt assembly using only grade 8 bolts so they might have a little give before snapping off. I think after the chains stretch a few times and are adjusted, they stay pretty good. I haven't had to adjust mine in a long time. Don't tighten them too tight though. Dave

Probably...
I'm not familiar with the innards of that machine. I do know that on my NH you need to at very least remove the brake discs and probably get the sprocket out of the chain. I think the axle sprocket can then roll past the drive sprocket...
I know it's a lot easier to get it out if the drive sprocket/reduction case and motor are removed but as I reall it can be done without that extreme.
Is this one set up with the drive sprocket coming off the reduction case and the brake disc on the reduction case input/motor output shaft?

Rod

No reduction case, just one long chain that loops around kind of funny. The bigger Thomas's use a bow tie design for the chains. The brake disc is right on the hyd. motor. Would be a pain to take the motor out but depending on which sprocket, they may be no other way. I'm curious why the sprocket needs to be taken out? It's a #100 chain. Dave

I see...
I'm guessing it needs to come out because it's bad? Said he's replacing it anyhow.
If that's the case I'd assume the others are equally bad...

Rod