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448 Steering Sector Gear Rebuild

haha lol waste of time but it worked

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#1 marlboro180 OFFLINE  

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Posted February 20, 2013 - 07:44 PM

So a couple weeks ago I blew out the sector gear on the 448. Turned out the pivot shaft was wonky to begin with, making matters worse.

 

Middle 4 or 5 gears were the worst, but a few on either side were worn hard as well. For whatever reason, the R. side of things got the most hurt.

 

Broke out the MIG, then the TIG, built the gears back up, got out the files, and made it work again.

 

The pivot shaft is now bolted tight to the frame ( for however long, not welded ) and I built up a rather , ummm, unique washer system and jamb nut configuration to keep it all in place.

 

Lash is nice, no binding from side to side in turning, and hopefully the new gears hold . Full turning radius , I think even better than before.

 

Whatcha think, worth more than the 10 buck gears on e- bay? Prolly cost more to do this than get one of them, but I like fixing what I have. More TIG time is a bonus too.

 

Oh yeah, the cast bearing section was broke off too. Sorry about the cold looking welds there, trying to save the cast as much as possible, that is a road less traveled for me.

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Edited by marlboro180, February 20, 2013 - 07:57 PM.

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#2 boyscout862 ONLINE  

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Posted February 20, 2013 - 08:11 PM

Nice work. I agree with you that its nice to fix it yourself.  Each time I do something like this I learn something new. Good Luck, Rick



#3 Alc ONLINE  

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Posted February 20, 2013 - 08:18 PM

Great job :thumbs:   Maybe on this repair you could have gotten another part but like you said you got more  experience  and who knows maybe the next part you repair will  be a  "one of a kind "  that WILL  need to be repaired



#4 marlboro180 OFFLINE  

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Posted February 20, 2013 - 09:05 PM

Thanks fellas, always fun to share a learning experience. Never rebuilt gears before, I'll see how long these last.



#5 Arti ONLINE  

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Posted February 20, 2013 - 09:28 PM

Looks like new again.. I'd say it was well worth the effort.


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#6 John@Reliable OFFLINE  

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Posted February 20, 2013 - 10:44 PM

They look great from here.

I have had that nut come loose a few times, and then tractor only turns right, usually happens with only a couple of passes left to finish the lawn  :D  ,

anyway I got a some nylon lock nuts a while back, so far about six months and still going left and right.

P.S. Lots of fun trying to hold bolt, gear, shims, washers and put a nut on at same time isn't it :bigrofl:


Edited by John@Reliable, February 20, 2013 - 10:46 PM.

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#7 KennyP ONLINE  

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Posted February 21, 2013 - 05:07 AM

Looks like a good fix to me. Should last for quite some time!


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#8 marlboro180 OFFLINE  

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Posted February 21, 2013 - 08:53 AM

 .P.S. Lots of fun trying to hold bolt, gear, shims, washers and put a nut on at same time isn't it :bigrofl:

 John, I changed things up a bit in that regard LOL.  The pivot shaft that is normally flopping around during assembly is now bolted tight to the frame prior  to the thrust washer (s) and gear, and related washers getting put on. Sure makes for easier assembly now, though I didn't get a picture of that before I put the gear on. The rather big round bunch of metal welded to the bottom of the gear allows for clearance of the nut hidden inside there. :D



#9 Mjoe7 OFFLINE  

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Posted February 23, 2013 - 03:16 AM

Sure beats a $132.00 for a new one! Nice going!


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#10 Moosetales OFFLINE  

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Posted February 26, 2013 - 06:52 AM

So if I can't tell on the finished product which teeth you built up and filed down....is that a good thing? You do great work. Something's fishy with my steering in the Massey so I'm sure I'll be digging into the steering world very soon. Thanks for posting.



#11 marlboro180 OFFLINE  

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Posted February 26, 2013 - 09:56 AM

Thanks Moose, if you had the sector gear in your hands you could see the buildup though. :rolling:  I could'a spent more time on it, but in the world of somewhat sloppy GT steering, did not deem it necessary. :D







Also tagged with one or more of these keywords: haha, lol, waste of time, but it worked

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