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D2 going in the shop

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1 year 10 months ago #209090 by drujinin
Replied by drujinin on topic Yes Neil
I believe heating/cooling shrinking that Bushing the same way would work!

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1 year 10 months ago #209101 by janmeermans
Replied by janmeermans on topic D2 going in the shop

I got set up with a little table to try to weld up my rails. Just some stuff from the treasures pile, so nothing special and will go back in the treasure pile when done. The shop hoist seems to handle the tracks ok so far. After talking to a couple of welder type guys and a friend with experience welding tracks I'm going to use the 70 series wire which equals to 7018 stick rod. This is basically a working hobby machine so I'm confident that this will out last me.


d2gary,

My article on how they did the link welding "back in the day" is available in the Members Site in the electronic copy of Issue 148. It may be too late for you but it is there for anyone wanting to look. Your mailed copies are on their way in the
mail and should be arriving soon!

The follow-on article for roller build up will be in the Jan/Feb/Mar 2020 Issue 149 which we hope will reach everyone by mid-March.

JanM

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1 year 10 months ago #209116 by Riverina d4
Replied by Riverina d4 on topic D2 going in the shop

Would that method work on the D2 track frame to pivot shaft bushings?

I Have not had any experience with the pivot shaft bushings Neil so I cant be sure about them.
All I know is that when I used this method on the roller caps the inside diameter of the cap returns to its original size. the bronze bush is the only thing that changes.
I think the Roller caps are Cast steel not Cast Iron, So I think it would be a similar exercise on the pivot Deal.

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1 year 10 months ago #209154 by d2gary
Replied by d2gary on topic D2 going in the shop
I did read the old caterpillar directions on welding the rails and did deviate from their directions a little. The recommended way was a perimeter weld and then across the rail to fill in. After advice from a friend that has welded tracks and my welder friend I welded the perimeter then welded length ways to fill in. I had 3 to 6 rails going at a time and would do 2 welds and move to the next rail. This keeps the heat down and everything stays warm so I'm confident this will work fine. After trying both methods the length ways seems to give a smoother finish
This is my 59th link


I'm going to start trying to get the bushing out of the caps with the heat and cool method. I still have to clean the caps so the bushing can be measured. I think a couple might be within spec. Seems like the rollers with good seals dont have that much wear, imagine that!
Got a track frame on the welding table.


Glad to have the track welding behind me

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1 year 10 months ago #209298 by d2gary
Replied by d2gary on topic D2 going in the shop
First parts going back together instead of coming apart. Throw out bearings removed and reinstalled
[ATTACH=CONFIG]84258[/ATTACH ]

Good news is the 7B9968 seal is in fact a direct replacement for the d2 lower roller bellows seal
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1 year 10 months ago #209309 by neil
Replied by neil on topic D2 going in the shop
Looks really good Gary, you're going to love that new steering!

Cheers,
Neil

Pittsford, NY

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1 year 10 months ago #209476 by d2gary
Replied by d2gary on topic D2 going in the shop

Looks really good Gary, you're going to love that new steering!


Already liking the new steering, seems ashame to cover them up

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1 year 10 months ago #209477 by d2gary
Replied by d2gary on topic D2 going in the shop
Almost done with one track frame. I was able to salvage all of the holes for bolting the rollers and the sheet metal. I cut the frame where the front idler runs back and forth and replace the section with the wear. Still have a few holes to weld up and spring mounts to put on. I cut the old spring mounts off my other frames but they're to wore out to use for anything except a pattern.


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1 year 10 months ago #209478 by d2gary
Replied by d2gary on topic D2 going in the shop
I had 6 arms for the idler to choose from, so I picked the best and welded them up.



One actually didn't need any welding
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1 year 10 months ago #209482 by neil
Replied by neil on topic D2 going in the shop
I'm glad you posted those Gary because I wouldn't have thought to have checked that wear. Interested in coming out for a week to do mine? : )

Cheers,
Neil

Pittsford, NY

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