Replacing Pinion/Ring TC40D

[Korishan]

How do you mean by bull dozers? We predominately use it for moving earth and clearing brush. We have pushed over the occasional tree, but that's like maybe once a month at the max, average. (now, these are more like shrub trees like scrub oaks, not large pines or oaks or maples)

Kori

 

[Sawyer Rob]

Any time the front wheels are spinning or slipping while pushing something, it's VERY hard of the front end, especially with a bucket full of dirt ect...

Yeaaa folks do it all the time, and given enough time, they will end up where you are too...

SR

 

[Korishan]

Oh, that. I always try to make sure that all 4 wheels are on the ground (granted, I do raise the front up for extra leverage, but rarely). That's the whole point in using 4x4 mode. If they aren't, what's the point? I see what you mean, though. They are designed to have a certain amount of backpressure/resistance when in operation to keep everything meshed together properly.

Kori

 

[Sawyer Rob]

I'm not talking about wheels/tires in the air, I'm talking about spinning the front tires on the ground pushing something... With the front weighted by the bucket, it puts a HUGE amount of stress on the front end parts.

Those ring/pinions just aren't all that big, they get over stressed and start failing.

SR

 

[Korishan]

Oh that. This tractor doesn't even that kind of HP. The engine will bog down to a shutoff first. The only time it does do that is if we're using it in the mud. The only time I've noticed the tires leaving marks on dry-ish dirt was when the broken parts locked the front when I was moving it the other day.
The back tires loose purchase before the front ones do. We have had the that happen a few times. But it's usually when the bucket is being loaded or backing out of a hole.

Kori

 

[KWentling]

Looks like the ring and pinion plus all the bearings and seals need replacing.

The new R/P will have to be "shimmed" in, or it will fail again...

These light duty tractors are NOT bull dozers! That's the results of using them for one!

SR

I got to agree. The only thing in those pictures I would reuse is the housing. The tooth profile is so damaged that it will create a lot of contamination as they try to
wear in to each other. If this something you plan on keeping, spend the money to do it right, or you will be doing it again. If you have no experience setting up a ring and pinion, get some who does to help you. If you are going to reuse those, it probably won't make much difference, as you will never get a good contact pattern with those teeth.