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GreenOrange 
Orange Level
Joined: 11 Sep 2009
Location: Wisconsin
Points: 851
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 Topic: M Crawler master pin removal
Posted: 12 Nov 2020 at 3:26pm |
I'm going to be needing to split the tracks on my M crawler... any advice on getting the master pins out? I read a little online and know they make pushers, but that's definitely out of my price range. Some say cut it and replace it with a new one... I'm not sure I can even get a new one for the M and assume it's exceptionally hard steel.
Any thoughts and advice would be greatly appreciated before I attempt to tackle this one!
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DiyDave
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54397
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Posted: 12 Nov 2020 at 5:35pm |
Aside from the search for a 20-30 year old, willing and able to use a 12-20 lb sledge hammer, for several hours, I don't see much of a problem... 
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Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
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GreenOrange
Orange Level
Joined: 11 Sep 2009
Location: Wisconsin
Points: 851
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Posted: 14 Nov 2020 at 8:23pm |
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So, is it even worth attempting or just look to hire someone with a pin press?
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42028
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Posted: 15 Nov 2020 at 11:44am |
Buck the back side of the track with blocking to other side of machine to prevent movement . I welded a guide onto track pad to hold a steel rod to use as a punch to drive against master pin - that steel rod has a handle welded onto it for helper to steady the rod while I swung sledge to drive out pin . Using some heat on both sides of track link to expand link and to help free pin . Once movement was obtained - soaking it with penetrating oil helped in keeping it moving . Bucking the track is important as otherwise rebound from the blows will just be absorbed by track moving when pin is hit . Using a pipe allows the pin to move into pipe while still being held securely
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 34325
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Posted: 15 Nov 2020 at 3:51pm |
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IF know someone with track service tools the money spent is well worth it as to Bodily strains and pains as well the side load stresses placed on the links beating them with a sledge.
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GreenOrange
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Joined: 11 Sep 2009
Location: Wisconsin
Points: 851
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Posted: 18 Nov 2020 at 8:45pm |
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Thanks for the advice gentlemen!
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8676
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Posted: 23 Nov 2020 at 9:12am |
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Finding the guy who knows how to properly use his track tools is the next problem. I take my semi tractor to a shop for spring bushing replacement. They have the tools but aren't much good at using them. I have to shepherd the mechanic through the process. Bout ready to buy my own tooling.
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LeonR2013
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Joined: 01 Jan 2013
Location: Fulton, Mo
Points: 3500
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Posted: 01 Dec 2020 at 2:50am |
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Getting a 20# hammer should be the first order of business. Getting the chain red hot is not the best thing to do. It can soften the chain which can lead to breakage. But sometime you have to do what you have to do. Leon
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42028
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Posted: 09 Dec 2020 at 10:08am |
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I used a #12 sledge - heated track links well below red - say 400 F Deg and as soon as pin started moving soaked area with penetration oil - going back in i used STP on pin
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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