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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

1280 case excavator problem!!

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daveminn

08-25-2007 06:36:51




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On My case excavator 1280 receintly noticed 2 broken bolts directly under the boom.These are 2 of the many bolts that the ring and platform are attached to.Quite a few of the other bolts were loose.Question??Do you have to follow the torque specs in the book on an old machine or can you just power wrench them down?Also how in the world do you get the broken off studs out when they are below the ring gear about 1 inch?Can I get by without fixing them?Thanks for any help you can give me.Dave A

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Case450

08-30-2007 14:16:42




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 Re: 1280 case excavator problem!! in reply to daveminn, 08-25-2007 06:36:51  
Your better off replacing any loose or old bolts. Like the other feller said, if you try torquing down old bolts they might snap off and create more work for you. More importantly i would try and find out what is causing the bolts to work loose in the first place. No point in going through all the hassle of replacing/re-tightening the bolts when they will probably work loose again. Some locktight wouldn't hurt either. Just my two cents. Good Luck.

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AJK

08-25-2007 07:45:34




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 Re: 1280 case excavator problem!! in reply to daveminn, 08-25-2007 06:36:51  
If you got room to use a power wrench then you got room to use a drill,get an old bolt and cut a piece off it to the length needed for it to be higher than the ring when put down on top of the broken bolt,drill a small hole through the centre,you put this drill guide into the hole over the broken bolt,use tape wrapped around it so its a snug fit,you can now drill a hole in the broken bolt and it will be in the centre,after you get a pilot hole drilled you can go up in size to at least a 5/16 or 3/8 inch and use an easyout to unscrew the broken piece, I would be inclined to replace the bolts that were loose in case they break when been torqued up and cause more aggro or at least a few either side of the broken ones as that point must be under more stress than the rest.
AJ

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