455G track pins

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jhubert
430 crawler
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455G track pins

Post by jhubert » Sun Dec 20, 2009 6:16 pm

Hey guys, newbie here. Im just wondering how big of a job replacing track pins and sprockets is. Are there some basic tools that would let me do this job myself? Or is this best left to a specialized shop to do? Im a machinist so I can make things for myself. Interested to hear what you guys have done in the quest to avoid a field service call!
455G with 9310G hoe

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Lavoy
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Post by Lavoy » Sun Dec 20, 2009 11:02 pm

Sprockets are no real big deal, just kind of a pain. Split the track at the master pin, unbolt the old sprocket, replace with the new one, replace master pin.
If you mean all the track pins as in pins and bushings, that requires a track press, no easy way to do it.

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Tigerhaze
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Post by Tigerhaze » Mon Dec 21, 2009 3:41 pm

Lavoy wrote:Sprockets are no real big deal, just kind of a pain. Split the track at the master pin, unbolt the old sprocket, replace with the new one, replace master pin.
If you mean all the track pins as in pins and bushings, that requires a track press, no easy way to do it.
Hi Lavoy-

How critical do you think the torque values are for sprocket bolts? I noticed that for my crawler (2010) that the sprocket bolts are supposed to be torqued to 450 ft-lbs or something like that. Do you just use a 1" air impact and crank away, or if you did by hand would you need to get a torque multiplier tool or just a very large breaker bar and put all you have into it?
(1) JD Straight 450 crawler dozer with manual outside blade; (2) JD 2010 diesel crawler loaders; (1) JD 2010 diesel dozer with hydraulic 6-way blade; (2) Model 50 backhoe attachments, misc. other construction equipment

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Lavoy
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Post by Lavoy » Mon Dec 21, 2009 4:00 pm

No, I do not torque them with a torque wrench, I hit them with am impact wrench and call it good. I am using a wrench that I know will exceed the necessary torque value, that much you need to be sure of.
Lavoy

jhubert
430 crawler
430 crawler
Posts: 59
Joined: Sat Dec 19, 2009 8:32 pm
Location: Northeast Pa

Post by jhubert » Tue Dec 22, 2009 9:07 am

The parts guy showed me on his computer what the sprocket looked like and it was a flat cog. Is that pressed onto the domed center piece? Or do the bolts go through both pieces in order to drive the cog? The parts guy wasnt much help but I do understand theres many different machines out there! Sounds like I can take the track apart at the master link and then just take them to a shop to have the bushings turned? Do the pins were out too?
455G with 9310G hoe

KenP
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Post by KenP » Tue Dec 22, 2009 11:14 am

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jhubert
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Location: Northeast Pa

Post by jhubert » Tue Dec 22, 2009 6:30 pm

That was a dry read for sure but I made it through. Thanks a bunch for that link. My old roomie from college went through the CAT program so I may have to see if he can help me any at his shop. Last we spoke he was still with Giles and Ransome.
455G with 9310G hoe

KenP
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Post by KenP » Tue Dec 22, 2009 7:14 pm

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