235 C bucket pivot pin Expander pin pros and cons

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Medic235

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I Am looking at replacing the pivot pin on my bucket and have done some research into the expander pin system and looking at a discussion on there use the system comes with a 10 year warranty. And does require regular retorqing . I did a quick search no results came up on here. My machines just work on my ranch by me doing clearing and road building ..
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Tue, Jan 12, 2021 1:24 PM

neil

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That's similar to the approach used in the past for the D2 master pin. Cat went away from that presumably because it wasn't as effective as a straight, interference-fit pin. Could have been due to cost but I doubt it, given how simple the plug and pin components were. If you're regularly exchanging buckets, it would be helpful. I know that it's quick and easy to split my D2's tracks with this system, but I haven't driven it long enough to see how long it stays locked.

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Tue, Jan 12, 2021 7:34 PM

Medic235

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Reply to neil:

That's similar to the approach used in the past for the D2 master pin. Cat went away from that presumably because it wasn't as effective as a straight, interference-fit pin. Could have been due to cost but I doubt it, given how simple the plug and pin components were. If you're regularly exchanging buckets, it would be helpful. I know that it's quick and easy to split my D2's tracks with this system, but I haven't driven it long enough to see how long it stays locked.

My Machine is Cws lugs for bucket changes but the pin at the end.of the stick that the thumb pivots on as well the bushings or pin boss are worn out near excessively

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Tue, Jan 12, 2021 7:39 PM

neil

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Reply to Medic235:

My Machine is Cws lugs for bucket changes but the pin at the end.of the stick that the thumb pivots on as well the bushings or pin boss are worn out near excessively

I think even if you go with the expanding pin, the bushings / hole in the end of the stick will need to be in good shape first, and I'd wager that that's a stipulation in the warranty. If you have to line bore and add new bushings, you might be back to just using a regular pin again where you don't need to worry about a warranty or regular re-torques

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Wed, Jan 13, 2021 1:03 AM

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