D4 seal identification

My guess is out of the hydraulic control, by the picture. That is in a different book than the tractor. But I don't know my Cat hydraulics to tell you what book you need. So you need more help than I can give you, but other should be along soon. So welcome. As all most all knowledge about Cats shows up here, your in the right spot.

Here is an old thread that may help.
https://www.acmoc.org/bb/discussion-d72/24525-d2-44-hydraulics?start=0

[quote="Cat Yellow1 post=255406 userid=8178"]Here is an old thread that may help.
https://www.acmoc.org/bb/discussion-d72/24525-d2-44-hydraulics?start=0


Thanks, looks like a seal that will be pretty easy to find if the D2 and D4 use the same part number.


Here are a couple pictures of the machine.  Had just looked at a smaller Cletrac and then a Massey 2244 when I stumbled upon this.  Motor is pretty fresh, UC is in pretty good shape as well.  I bought it to clear some stumps on some land, it does a great job.  Going to build a ROPS (if you can call it that, operator enclosure) and fix a couple little things here and there.

 [attachment=75627]kimg0721_ca26475754f5b6ac0eb23c41eb896940b60eaf35.jpeg[/attachment]
 [attachment=75628]kimg0724_82ce1b643e3fd7b0e4f083e3bfc9207997193a0f.jpeg[/attachment]
 [/quote]

 [attachment=75632]cat 44 hyd.JPG[/attachment]

Thanks Bruce, but I was actually wanting the S/N of the tractor.
Craig

Don't let the control shaft drop down or you will bugger up the detent mechanism.
There is a Service Bulletin upgrade.....The single seal has been replaced by the use of two seals.
 [attachment=75635]Control Shaft Seals.JPG[/attachment]