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 Post subject: UP Eccentric Crank Testing Jig
PostPosted: Mon May 13, 2013 11:58 pm 

Joined: Sat Feb 05, 2005 1:05 am
Posts: 410
Not quite sure what force it takes to spin a main crank pin out of quarter, but it must have happened often enough to warrant building a jig to test it on a regular basis.


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 Post subject: Re: UP Eccentric Crank Testing Jig
PostPosted: Tue May 14, 2013 12:54 am 

Joined: Fri Mar 05, 2010 3:41 am
Posts: 3236
Location: Inwood, W.Va.
Interesting that the UP apparently had so much work of this nature to come up with such a shortcut. This work can be done without such a rig, but it takes a bit longer as part of the whole job of reassembling and setting the valve gear after an overhaul.

No room for such creativity or originality with diesels it seems. . .


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 Post subject: Re: UP Eccentric Crank Testing Jig
PostPosted: Wed May 15, 2013 12:49 am 

Joined: Wed Aug 25, 2004 11:16 am
Posts: 593
I wonder how the different ways to catch a slipping locomotive could have an effect on the quartering of a set of drivers?

Robby


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