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D2 track master link question

D2 track master link question

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TyS
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[attachment=43785]0727171650.jpg[/attachment][attachment=43786]0727171654.jpg[/attachment] I'm starting to take my D2 apart to replace the steering brakes. The first track has A master link like my manual shows. The only pin I can find with any difference on the second track has A small hole in each end. Is this the master pin? How do I remove it?
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Fri, Jul 28, 2017 9:17 PM
MARCOTEN
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the pin on the picture with split ends , how did you remove the plugs? is it direction in for both plugs, and one direction out?
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Sat, Jul 29, 2017 12:20 AM
TyS
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Reply to MARCOTEN:
the pin on the picture with split ends , how did you remove the plugs? is it direction in for both plugs, and one direction out?


I drilled A pipe cap and then use A grade 8 3/8 fine bolt. that is what fits my slide hammer. the plugs go in from each end.[attachment=43798]0728171040.jpg[/attachment][attachment=43799]0728171041.jpg[/attachment]
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Sat, Jul 29, 2017 12:43 AM
TyS
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[quote="Garlic Pete"]That is most likely the master pin. The updated master pins are an interference fit without plugs or splits. You other picture is one of the several variants of master pins which were contemporary to the machine.

Those updated master pins do have dimples in the end to allow identification as you are doing now.

The way to make sure that is the master pin would be to look in between the track pads with it on the sprocket or idler, as you have it in your pictures. The master link will have a shorter bushing which terminates flush with the inner track link. They'll have a spacer ring which fills the recess in the outer track link. You should be able to look in the crack with a good light, or perhaps fish in there with a thin piece of steel, like a steel ruler, to establish that this link doesn't have a conventional bushing.

I'd hate to have you drive that pin out and find that this isn't the master link. Any link other than a master link can't be separated by driving out the pin since the bushings on all other links extend out from the inner link into the outer link.

If this is the only pin with a dimple and all other pins in that track are normal flat faces, it is almost certainly the master pin, but inspection of the crack between the inner and outer link or rail surfaces will tell you for sure.

Pete.[/quote]

Success. It was the correct pin. I made A driver and it took about A dozen good hits with the sledge. Thanks[attachment=43800]0728171019.jpg[/attachment]
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Sat, Jul 29, 2017 12:45 AM
neil
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Reply to TyS:
[quote="Garlic Pete"]That is most likely the master pin. The updated master pins are an interference fit without plugs or splits. You other picture is one of the several variants of master pins which were contemporary to the machine.

Those updated master pins do have dimples in the end to allow identification as you are doing now.

The way to make sure that is the master pin would be to look in between the track pads with it on the sprocket or idler, as you have it in your pictures. The master link will have a shorter bushing which terminates flush with the inner track link. They'll have a spacer ring which fills the recess in the outer track link. You should be able to look in the crack with a good light, or perhaps fish in there with a thin piece of steel, like a steel ruler, to establish that this link doesn't have a conventional bushing.

I'd hate to have you drive that pin out and find that this isn't the master link. Any link other than a master link can't be separated by driving out the pin since the bushings on all other links extend out from the inner link into the outer link.

If this is the only pin with a dimple and all other pins in that track are normal flat faces, it is almost certainly the master pin, but inspection of the crack between the inner and outer link or rail surfaces will tell you for sure.

Pete.[/quote]

Success. It was the correct pin. I made A driver and it took about A dozen good hits with the sledge. Thanks[attachment=43800]0728171019.jpg[/attachment]
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What diameter stock did you use for the driver pin?
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Sat, Jul 29, 2017 12:54 AM
MARCOTEN
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Reply to neil:
What diameter stock did you use for the driver pin?
thanks for the info, i saved the perfect pics ,for if i have to deal with it in the future !
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Sat, Jul 29, 2017 4:23 AM
TyS
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Reply to neil:
What diameter stock did you use for the driver pin?


1 inch shafting. I welded A flat bar handle on it.
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Sat, Jul 29, 2017 4:52 AM
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