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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Master link

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Pete/ME

08-20-2003 03:31:45




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Just put a new (Berco) chain on my JD350. Had to undo the pad on the female link for clearance, O.K. but still a bear. Is there some sort of hydraulic gizmo to press in the master link? Hard to get a good swing with a maul, and I dread trying to pound it out if I have to break the track.




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AJ

08-20-2003 09:45:28




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 Re: Master link in reply to Pete/ME, 08-20-2003 03:31:45  
You need to clean any paint or rust from each eye of the link,put the track pad back on as it will stop the link from spreading,you need a drift,a piece of bar with a handle welded to it,it should be long enough to clear the track pad,have the pin clean,line everything up,get a second person to hold the drift against the pin while you hit it with a 14lb hammer and drive in the pin,when it goes through the first link check that the inside one is in line and drive it it the rest of the way,do not hit the pin directly as it will swell,you and your helper should wear eye protection as track parts are very hard and can splinter,there is a hydraulic press but it will go in with the hammer. AJ

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Deas Plant.

08-21-2003 06:02:14




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 Re: Re: Master link in reply to AJ, 08-20-2003 09:45:28  
Hi, Pete. All of the above in AJ's post, but also put the pin in the freezer overnight and an old shirt or similar in the 'fridge' as well. Keep fridge/freezer and tractor as close as possible to each other. Have one person warming the female link -- inside and outside parts -- with an oxy-acetylene torch while another brings the frozen pin from the freezer wrapped in the chilled shirt -- or whatever. Upon the pin-carrier arriving at the tractor, unwrap the pin from the shirt, insert it into the hole, which you have previously (I hope.) aligned perfectly and blocked in place. (A pin or bar just slightly smaller in diameter -- like 1/16"-1/8" -- than the track pin right through the 2 links can work wonders here.) A few quick blows with about a 10/14 pound hammer using the drift (which you have also previously prepared) should see the pin in place. If out in the field away from a fridge/freezer, dry ice is a viable alternative to chill/shrink the pin. Track pin presses can usually be hired/borrowed from most good dealers who service tracked machinery. (At least DownUnder.) The above method will also make it easier to press a pin in. Hope this helps. You have a wonderful day. Best wishes. Deas Plant.

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Pete/ME

08-22-2003 03:30:01




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 Re: Re: Re: Master link in reply to Deas Plant., 08-21-2003 06:02:14  
Thanks to AJ & Deas. The first one took 20 min. and the second one about 2 min. Some observations: be sure to mic. the male and female links-had to loosen the pad bolts on the female end and spread the link, dumping the pin in a bucket of cold water helped, any bolt I could find was too small for alignment so I whittled an oak stick and tapped it in from the other side...back to the woods.



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Deas Plant.

08-25-2003 05:02:41




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 Re: Re: Re: Re: Master link in reply to Pete/ME, 08-22-2003 03:30:01  
Hi, Pete. Good stuff. You have a wonderful day. Best wishes. Deas Plant.



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