D6c Dead axle repair

Here is a link to my D4 repair that may be of some use to you.
http://www.acmoc.org/bb/showthread.php?25802-Problems&highlight=

If you can find an older engineering shop with portable lineboring gear and somebody that knows what they are doing its not too difficult and a hell of a lot cheaper than cat.
They made the sleeve using the outer most tolerence on the distance the shaft needs to be pressed in to, if that makes sense.
Aftermarket dead axles from CTP are relatively inexpensive.

EddieB has the info with sleeve specs for this but it is for the older 8/9u series with different dead axle. But the basic idea is the same, just need to do your own measuring, unless you have better luck getting some technical info from cat than I did.

[quote="Glum"]Here is a link to my D4 repair that may be of some use to you.
http://www.acmoc.org/bb/showthread.php?25802-Problems&highlight=

If you can find an older engineering shop with portablelineboring gear and somebody that knows what they are doing its not too much difficult and a hell of a lot cheaper than cat.
They made the sleeve using the outer most tolerence on the distance the shaft needs to be pressed in to, if that makes sense.
Aftermarket dead axles from CTP are relatively inexpensive.

EddieB has the info with sleeve specs for this but it is for the older 8/9u series with different dead axle. But the basic idea is the same, just need to do your own measuring, unless you have better luck getting some technical info from cat than I did.[/quote]

Looked at your link...good info. I actually have an automotive boring bar similar to the one that was used on your machine. Might be able to rig it like that and get it done.
If I understand you correct, you made the bushing so the axle would sit at the max length distance when installed by hand. I might go just a bit tighter just to be sure it didn't press in too far.

Yes, aim for the maximum distance possible. Remember that there are three taper fits on these cat final drives, which can create quite a track alignment problem when they stack up.
As a side note, my D4E has done just shy of 2000 hours since that work and appears to be holding up well.

Shame you are not in mt, I fixed a lot of then for cat, hole is straight bored 3/8 to 5/8 oversize. new bushing made from 4140 with a recessed shoulder on the lathe ( so the bushing cant fall in.) fit .005/10 tight, froze with liquid n2. Taper would be machined oversize to match the fit into the tractor frame. We would freeze the dead ax with the n2 as well and pressed it lightly in, the shrink fit would do all the work. the hard part was the removal of the track parts and final drive and also setting the boring bar square.....WA7OPY