Re: Case 850-C Bulldozer track adjustment?

Posted by RBoots on November 28, 2016 at 13:57:05 from (173.241.113.102):

In Reply to: Case 850-C Bulldozer track adjustment? posted by farmall706guy on November 28, 2016 at 10:16:54:

The tracks really shouldn't loosen much at all in the amount of time you were running it. Maybe all of the times added together it maybe would loosen a little bit, but not as much as you say it has. Kudos on keeping an eye on it though, as most don't. That being said, make sure your front idlers aren't shelled out (bushings gone), and, there are wear pads on the track frames that wear out and can bind up from wearing in one spot for a long time. Track adjuster may be leaking as well, but shouldn't cause a hard adjust like you have. You can usually tell if it is leaking if you pull the cover off right behind the yoke where the grease fitting is. If the shaft has grease around it where goes into the barrel, the seals are leaking, an easy job. A question though, do the idler side brackets, (like in the center where the shaft goes through) stick out past the end of the track frame? If so, that means your tracks are quite worn, which can also allow the idler brackets to rotate more than usual, almost jamming it from sliding in the track frame as it's supposed to. On the track adjuster, that style can allow the rod, which is essentially the piston, to be pushed all the way out of the yoke (bore), so it's not like it has anything holding it under a certain length of stroke, aside from the track itself. If the track wasn't on there, you could use a grease gun to pump the shaft right out of the barrel. Now, I've seen some of the shafts seize up solid in the bore after not being used for a long time, but that doesn't sound like your case. In that event, a Porta power hooked into the grease fitting and sometimes even a rosebud on the bore about where the seals are. Also check the little 2 bolt plates that bolt to the idler side brackets, there should be a little bit of room between those plates and the outside of the track frame. Isually, there is plenty of room between there due to wear over the years, but it's something to look at. You are fortunate to own a piece of Caseequipment, as parts for almost anything are readily available both OEM and aftermarket for very reasonable prices. I've done UC work on hundreds if not thousands of machines over the years, so if you have any other questions, ask away.

• Maybe this will give you a better idea of what's in there

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