D4 7U broken sprocket

this sounds like a fun post and i hope you follow through with lots of pictures and more info as you rescue this 7U. i would guess it broke the sprocket and there it sat till all the bottom rollers froze up. Pictures will help the great minds of this club guide you in the right direction to bringing the Cat back to life.

Hi Team,
Speaking of welded sprockets here is a humdinger I saw last week--or how to keep this T4 Shovel running a bit longer.
Cheers,
Eddie B.

Wow!! and to think those welds are holding????

agreed OM....wow.....how is that holding? must not be doing work of any kind?
- must be a parade Queen....no offence to Parade Queens

Eddie , that is a fine example of "The Fred Flintstone School Of Mechanics" . Those welds look even worse than mine. Elig, you might be better off finding a used sprocket. Just my 2 cents worth. Grant.

Hi Team,
the machine looks to be an incomplete early Trackson but could be some other brand unit as it has chain drive to the overhead winches. It has the loader frame bolted to the track frames in weak areas.
There are bodged repairs and additions every where.
The current owner said he may yet be resurrecting it enough to show its history of abuse and bush repairs.
Cheers,
Eddie B.