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Coke-in-MN 
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Joined: 12 Sep 2009
Location: Afton MN
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 Posted: 25 Feb 2017 at 10:46pm |
Ah yes removal of pin . 2 man job - or 1 man and ideas you can do it . Get the pin to lower side of front idler wheel - Put a piece of 2" pipe over outside of master pin - the pipe blocked solid to other track opposite side
From outside weld a small collar to hold your punch in line with master pin. Punch would be shaft with a handle welded to it - like 1" punch with a 3/4 x3' handle Insert punch which lines up swing sludge while also using handle on punch to control its rebound . Might be heat needs to be applied to track link on both sides to expand . And next you have master pin out - and a good sweat worked up.
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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JC-WI
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Joined: 11 Sep 2009
Location: wisconsin
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Posted: 25 Feb 2017 at 11:48pm |
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Darrel are you into molten metal blowing out every where?
I have never don this but was told about it, and the fellow was working with a 4" pin 30 inches long...and used a quarter inch pipe and blew a hole straight through and when it cooled, he pulled it out without effort...
Set up a jig to slide the pipe on and hook oxygen right to the end of pipe then hook welder to pipe and then ground to machine, turn welder on high...
now make sure you have heavy leather on and helmet and mask and gloves because your going to probably get sprayed with liquid iron... Turn welder on and turn the oxy tank on and strike an arc and start pushing the pipe through the pin. The fellow said once it starts blowing the hole, it goes fairly fast. I wish I had seen him do it.
But maybe a fellow could maybe use an airarc gun to do the same on each end?
Good Luck...
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He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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Dozer
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Joined: 16 Aug 2011
Location: SW New York
Points: 689
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Posted: 26 Feb 2017 at 6:52am |
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HD5 and Hd6 pins are 1.376" diameter. you can fabricate your master pin from 1 3/8 drill rod or 1040 TGP shafting material. I made mine having caps on each end retained by (2) 3/8-16 socket head cap screws. I always like to split the track on the sprocket. I think that relieves the tension on the chain making pin removal easier and keeping the chain from flying off. I split the track once near the top of the idler. The chain moves fast once the pin is out.
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darrel in ND
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Joined: 22 Nov 2009
Location: Hebron, ND
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Posted: 26 Feb 2017 at 8:18am |
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Thanks for all of the responses, guys. I have the master pin at about the 2 o'clock position on the sprocket, which incidently isn't a bad place, but also the only place it can be, since the final drive is seized up tight on that side. My son's buddy has an air arc, and I may give him a job. I could keep plugging away at it with my torch, also. I have one side 75 percent done. I think a good machine shop should be able to make me a new master pin. Thanks again, Darrel
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darrel in ND
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Joined: 22 Nov 2009
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Posted: 26 Feb 2017 at 8:36am |
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I have to add an additional story here. The guy who told me about blowing the ends out with the torch, also had a good story about installing a master pin, the first time he did one. Said he knew it was going to drive in hard, so they got some dry ice to put the pin in, and got it good and cold. Then they took a couple torches to the link to warm it up. Then someone grabbed the pin with a plier, and quickly got it lined up, someone held a big driving pin, and next guy hit it with the sledge. He said the pin went flying all of the way through, out the other side, and accross the shop. Guess they over killed that one. Darrel
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shameless (ne)
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Posted: 26 Feb 2017 at 10:54am |
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that's funny right there!
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LouSWPA
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 24615
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Posted: 26 Feb 2017 at 12:40pm |
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at least you guys can find the master pin! I have a machine that I have tried many times to find it.....still no luck. I've had the track off and on three times now, doing it the hard way each time. This summer I need to replace the intermediate shaft gear. Orrrr, remove the whole truck frame assembly, which would mean removing the whole lift assembly and putting it on an otherwise running 5G with a twisted truck frame. I gotta work outside and the only lifting device is two WD 45's with lifts
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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CAL(KS)
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Joined: 18 Sep 2009
Location: Chapman, KS
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Posted: 27 Feb 2017 at 7:49am |
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buck the track up to the rear housing with a piece of iron, you will keep alot more energy driving the pin instead of bouncing around. a heavy wall pipe works good the pin can drive into and bucks the track link directly around it. a must on the bigger dozers unless you have a press. we use a large chunk of shaft with a handle welded to it so the holder can stand back while the swinger goes to town. still a tough job
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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20
Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
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Posted: 27 Feb 2017 at 10:07am |
As the master bushing is also shorter than other bushings - the fact shims and a collar is used to space that bushing out to full width of track link - helps in finding it by looking for those parts within the track . Sure like the split link on the FD5 track as being held together with 4 track bolts through link and track pad .
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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AC Mel
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Joined: 23 Jan 2010
Location: N.Ca.
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Posted: 28 Feb 2017 at 10:25pm |
Darrel, What you need is a "MANS' TORCH" like this. We thought of you today when I got this puppy out to trim the scrap iron off of this blade for the restoration HD11.
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JohnCO
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Joined: 11 Sep 2009
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Posted: 01 Mar 2017 at 12:59am |
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You can stand back and get to work with that muther!
Shameless, look at that Purdy Blue Ferd in the background!!!
Edited by JohnCO - 01 Mar 2017 at 1:00am
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"If at first you don't succeed, get a bigger hammer"
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Dgrader
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Posted: 01 Mar 2017 at 4:17am |
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Now that's a mans torch.
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Ya cain't fix stupid.
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shameless (ne)
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Posted: 01 Mar 2017 at 4:51am |
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with that size torch....them tanks don't hardly look big nuff! yes John....I see that blue blob
there! what's yer point? lol
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darrel in ND
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Joined: 22 Nov 2009
Location: Hebron, ND
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Posted: 01 Mar 2017 at 7:00am |
 shameless (ne) wrote:
with that size torch....them tanks don't hardly look big nuff! yes John....I see that blue blob
there! what's yer point? lol
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somebody either better get his caffeine, or else some more sleep. Lol Darrel
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darrel in ND
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Posted: 01 Mar 2017 at 7:03am |
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Mel, if I slipped with that torch, I might have my whole machine cut in half before I got corrected. And like Shameless says, looks like you could empty them bottles pretty fast. Darrel
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shameless (ne)
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Posted: 01 Mar 2017 at 10:58am |
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I tooks two little pills yesterday, and almost missed the day! gotta watch out on them little suckers! whew!
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JC-WI
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Posted: 01 Mar 2017 at 12:26pm |
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You taken them little pills , it's best that Dave drives that torch... LOL
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He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."
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JohnCO
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Posted: 01 Mar 2017 at 3:02pm |
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Must not be the little Blue Pills, or he would have been up all day! LOL LOL
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"If at first you don't succeed, get a bigger hammer"
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
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Posted: 01 Mar 2017 at 6:09pm |
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Mel, if my eyes do not deceive that appeared to be similar to my old Airco Cutmaster. Have not seen one in forever as no longer made. Used mine for two years scrapping heavy machinery. Using MAPP gas? for fuel gas or Propane?
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AC Mel
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Posted: 01 Mar 2017 at 10:17pm |
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Dave, I actually don't know what it is. It's the same tip that's in my victor torch. I don't use it to often. It's nice for scrappin or standing back, just using ox./acetelene, cause we don't use it much. Some one gave it to us,said it needed to be rebuilt. Changed the valves and poof! works good!
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DMiller
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Posted: 02 Mar 2017 at 6:53pm |
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Victor was the major supplier to Airco back in the day, more than likely same or a Victor similar. I used that torch for a solid two years before giving it up to another scrapper. Biggest job we used two on took us almost 60 days to cut up a 'Walking Dragline' in a old MO strip pit back in the 70's. Boiler produced steam powered electrical generators ran the machine. Was a challenge for three guys and little time or knowledge of what we were doing! Thickest it would cut reasonably clean was 3".
Used propane for fuel gas, rented a Ryder flatbed to haul LP and O2 tanks to run the gas axes, worked 12-14 hour days back then as I was young and full of it! Special regulators and tips for LP gas or MAPP gas.
Edited by DMiller - 02 Mar 2017 at 6:54pm
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darrel in ND
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Joined: 22 Nov 2009
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Posted: 02 Mar 2017 at 7:13pm |
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I have to ask about MAPP gas. I have a little torch that uses a small MAPP cylinder, and a little oxygen cylinder, but I was in-aware that you could even get it in large tanks. What exactly is it, other than obviously a hot burning gas. Is it a mixture of a couple, or is it a stand alone gas? How does it stack up against propane and acetylene as far as burning temperature, price, and such? Thanks, Darrel
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darrel in ND
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Posted: 02 Mar 2017 at 9:12pm |
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THE MASTER PIN IS OUT!!!!!!!!
My son's friend came down with his portable welder and air arc, and had it out in a half hour. I didn't even get to see it happen, because I was getting a heifer with a fresh calf into the barn. It was out by the time I got done. If I can't find a new pin, I'll probably just have a machine shop make me one.
Note to self: When splitting tracks in the future, step one is get a good man with an air arc.
Darrel
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ghostriderinthesky
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Posted: 02 Mar 2017 at 9:23pm |
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we used to use a five gallon bucket with about 3 inches of propane in it to chill shafts and master pins so they would drive in easy
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shameless (ne)
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Posted: 02 Mar 2017 at 9:45pm |
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I ran the track off of my HD5 once, at that time I didn't know about any master pin. we suspended the HD5 in mid air, and with 3 guys with different types bars and muscles, we had it back on in about 30 minutes. the previous owner told me not to fill the bucket and turn to the left while backing up or it would run the track off! guess what I forgot, until it happened! lol I then had a new adjustment screw made for that side and never had that problem again!
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darrel in ND
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Posted: 04 Mar 2017 at 8:38am |
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The HD5G is going back onto the back burner again, for now. The whole final drive needs new bearings on the left side. And if I go through the trouble of doing that, I am going to fix many other things as well, and right now it is just not in the cards, time wise or financially. Pray for good crops and good prices for this growing season, and maybe next fall I'll be back onto it. Darrel
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shameless (ne)
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Posted: 04 Mar 2017 at 4:40pm |
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I sure wish you'd make up your mind! whew! the suspense is killing me!
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darrel in ND
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Posted: 04 Mar 2017 at 6:02pm |
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I know, I know. Sure wish you would have just sold me the one you had, with a 20 year warranty, then I'd be sitting phat cat. Darrel
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shameless (ne)
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Posted: 05 Mar 2017 at 12:42am |
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lol.....well you.....ohhhh....I better not say!
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LeonR2013
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Posted: 05 Mar 2017 at 7:09am |
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Darrel if you decide to make a pin give me a call and I'll walk you thru. how to harden and temper it. Get a D2 tool steel bar. Short piece of course. Some others might want one, so cost could be cut by making more than one. We also have an outlet for this kind of steel. A 20# hammer really works well to knock pins out. I have one but don't expect me to operate it.
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