Track chain wear on D6C

Find the piece the chain is rubbing on and send us a pic of that too.
Later Bob

I'd suspect front idler alignment is jambing the rails against the bottom rollers.

OUCH! That's nasty.

Like bob says, there's something else that is polished/worn similarly. That type wear is typical of a track roller that is severely worn. So if it came on all of a sudden, probably one or more have seized and the rails have cut a groove into the rollers until the flanges started cutting into the pin bosses. I could see how it might happen fairly quickly.

While it looks awful, I believe if you get the rollers replaced, you still have quite a bit of height left on the rails. The wear was concentrated on a small area of the offending parts, but spread across the whole chain, so not as severe there. Might be impossible to rotate pins and bushings because of the beating the pin bosses have received.

Looks like a bent guide guard on the front or rear of track frame.

Hey Josh,

I see your in Peterson Country, me too. If it turns out to be the bottom rollers, PM me as I might be able to help -glen

check out the bottom rollers first, I reckon you have one seized, should be easy to find with flats worn on the flange.

I went out and looked at the D6 today, and found that the guide components on the idler yoke assembly considerably worn, along with a missing plate under the springs in the yoke. This combination is apparently allowing the idler to tilt enough to push the rails into the front guide guard under certain conditions, I can feel the wear on the guide , but no room to take a picture of that, everything else looks good. With the front end lifted, I used a pry bar to wiggle the idler assembly, and the whole assembly flops around.
Thanks for the help so far.
Josh

Assuming you don't mean the idler flopped around on the shaft a reshimming should fix things up.
Later Bob