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wlhageman 
Bronze Level
Joined: 09 Sep 2010
Points: 40
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 Topic: H3 Loader Arms
Posted: 13 Dec 2015 at 1:58pm |
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Hello,
I picked up a H3 last Year with a loader. Someone has modified the loader arms to 2" x 4" Square tubing and mounted the bucket cylinders on top of the main boom arms. Their geometry is all wrong as the bucket will not Curl back when booms are down and not dump completely when raised. Dose anybody out there have the main boom and bucket linkage from a parts machine?
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Eldon (WA)
Orange Level
Joined: 11 Sep 2009
Location: Spokane, WA
Points: 7765
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Posted: 22 Dec 2015 at 2:19am |
I have a parts machine, one main arm has been repaired. Have 2 excellent bucket cylinders, main cylinders are sold. 
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ALLIS EXPRESS!
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pinball
Orange Level Access
Joined: 28 May 2014
Location: missouriu
Points: 6408
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Posted: 22 Dec 2015 at 7:08am |
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Don't know where your at but theres a big salvage yard in versailes, missori called Zimmermans. You can find him on the net. Usually not to cheap but I suspect he has one in his yard. I know he does ship . norm
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ivan
Silver Level
Joined: 12 Sep 2009
Location: NE Michigan
Points: 319
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Posted: 22 Dec 2015 at 8:03am |
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we have a set 9893792721
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Hercules222
Bronze Level
Joined: 30 Nov 2017
Location: Western Iowa
Points: 3
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Posted: 30 Nov 2017 at 9:13pm |
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Sorry to bring this thread back from the dead, but I just bought the crawler from the OP. I am planning on rebuilding the loader this winter, and was wondering if someone could give the the dimensions of the original main loader arms. I assume they were solid steel somewhere around 1.25" thick, but the width is hard to guess. Thanks in advance for any help!
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Kipn
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Joined: 12 Sep 2009
Location: Tewksbury, Ma
Points: 800
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Posted: 02 Dec 2017 at 7:17pm |
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Mine is a 1961 with a loader bucket. The main arms are 1 1/2" X 5".
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1961 H3
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Hercules222
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Joined: 30 Nov 2017
Location: Western Iowa
Points: 3
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Posted: 02 Dec 2017 at 7:42pm |
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Thanks! I beefed it up for now with some 3/8x4 flat welded along side, and one extra 4x4 cross member. That helped a lot, but I am still planning on building new arms once winter sets in. I am too busy right now using it to clean up brush.
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42018
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Posted: 03 Dec 2017 at 9:55am |
On the HD5G the first units used a square tube for support between loader arms by the attaching point by bucket pins - every one I seen has been repaired or weld cracked at this point. Later units used a round tube brace across the area - then a bracket type reinforcement formed onto round tube / then welded in place - have not seen one of those with repairs .
Might look at this design for that lower end .
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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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Hercules222
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Joined: 30 Nov 2017
Location: Western Iowa
Points: 3
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Posted: 04 Dec 2017 at 6:36pm |
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Thanks! I wonder why the round tube holds up better? Must be something to do with the more even stress around the weld. With square tube, there is always more leverage at the corners to start a crack. I was raising the loader yesterday with a half a bucket full of dirt, and something bound up tight and broke one of the main arms, and severely bent the other one, so I will be completely rebuilding the loader. I also bought a 50 ton jack and plan on building a track press so I can turn the pins and bushings. Lots of winter projects!
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42018
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Posted: 04 Dec 2017 at 10:57pm |
On my 715B TLB loader frame they have a large oval material which is welded to the loader arm frame sides . It seems to prevent the twisting - but then I have broken each side during use in below 0 use when doing snow removal - a year or so apart but now matching welds and below the cross brace. On them early HD5 I have seen all kinds of braces added and still signs of cracking at welds - that round one - have not seen broken
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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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