Undercarriage question D4D

if your rollers are showing wear on only one side,then the track frame is mis-aligned with sprocket,me,I would
weld a piece of round stock to form your flange, bending around roller as required,weld securely,it does not need to
be a highly finished procedure[rough will do] been there,done that.

Wear condition is determined by roller diameter. The D4 rollers are 8" dia. new. Depending on what part number they are there are considered 100% worn out at either 7.5" dia. or 7.38" dia. They are also considered worn out when the roller flange is hitting the pin bosses.
Need the track link number in order to give the track link specs to determine the combination of wear.

edit: Did find the flange diameter, it's 9.09" for the D4

if you do not have rock guards this will be real easy.
take a torch and cut a little off the outside diameter flange. remove a quarter inch or so off both sides of the roller. if you remove to much and do not have rock guards it could become hard to hold the track on.

check your track frame alignment and consider welding up the rollers to the proper diameter.

Reads to me like the RH track/rollers are worn, not an issue of alignment.

Roller flanges hitting the pin bosses means either the rollers or the rails are worn out, to gain your 70 hours a year on an undercarriage which is probably on its wear limit but has some life left, as advised before, trim the flanges down to clear the bosses. Fitting new rollers on one side only is not a good idea.

a bit hard to say with out seeing it but the cheapest option is to weld the rollers back up if the internals of the rollers are still ok if not it may be cheaper to find some good used rollers

Paul

if your rollers are showing wear on only one side,then the track frame is mis-aligned with sprocket,me,I would
weld a piece of round stock to form your flange, bending around roller as required,weld securely,it does not need to
be a highly finished procedure[rough will do] been there,done that.

[quote="leon"]if your rollers are showing wear on only one side,then the track frame is mis-aligned with sprocket,me,I would
weld a piece of round stock to form your flange, bending around roller as required,weld securely,it does not need to
be a highly finished procedure[rough will do] been there,done that.[/quote]

We had a TD35 that always ran in an arc to the left. As a kid, (well until late in life an even now) I could never figure that out, the track is still being picked up the same number of links and even if the links are worn and longer, the sprocket will take up the slack.

Well anyway a friend told me later the reason is in the farm environment we most always make left hand turns. That causes a different wear pattern on the left rail vs the right. He said the solution was to run one track tighter, I don't know which one.

Can anyone explain this left arc phenomena? I still don't understand it. And I dont know how running one track tighter would help either.

One thing I know for sure, that tractor if left alone would eventually make it back to the barn!