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Man that must suck! Thats why i wouldnt want to buy a crawler even though i kinda want one.
Joe
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you and crane op have structual problems from twh. hopefully twh will repair/replace your problems.
good luck
dcc
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what the hell is wrong with these 16000s...sorry to hear about yours too...im going to check all my boom tips now and make sure they are not broke or anything....hope you get yours fixed to...
Brandon my youtube channelMy Facebook Page
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It looks like theres a design fault in the 16000. I haven't seen a post with other cranes that have broke. It's not a cheap crane. If I were you I would contact TWH and explain what went wrong. It seems to be breaking in the same place. Dam shame. 
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I feel your pain brother...
This just pisses me off!!!!
TWH better make it better
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Gentlemen, I'm not saying this is the cause, but here is an observation that could be a cause. Seems I have seen three (3) Manitowoc 16000 crawler cranes with boom problems. All three (3) have been custom painted. It very well could be that either the process to remove the original paint or the paint being applied is effecting the joint. Not sure if the pins are glued in or pressed in. If glued, either process could be softening the flue. Or if pressed in the metal is being fatigued, causing stress fractures that are being effected by either process. It will be interesting to see if anyone with factory paint has this problem. Randy M. Smolenack RMSmodels@aol.comrandy.m.smolenack@us.army.mil
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craneboi07 wrote:what the hell is wrong with these 16000s...sorry to hear about yours too...im going to check all my boom tips now and make sure they are not broke or anything....hope you get yours fixed to... Keep your boom down!!! Dont take any risk i can see it coming 
Heavy Cranes
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I don't know, but unless you have tried to repair this already I'd say I think I can see the flaw and I think Randy is right in his deduction.  It looks to me that from your picture Cheesehead, that TWH assembles these booms from smaller pieces and then perhaps even relies on the paint to help hold it all together as well as conceal the joinery. It looks like the end of each boom section has the coupling points attached and likely with some adhesive (note the silvery/chrome looking pins under the broken sections in the pic above) and then painted over. ....like this  Surely too much stress here (if this is in fact the case) or especially strong paint stripper being used could weaken this assembly. That's my take on it. Chris
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a Cutter wrote:I don't know, but unless you have tried to repair this already I'd say I think I can see the flaw and I think Randy is right in his deduction.
It looks to me that from your picture Cheesehead, that TWH assembles these booms from smaller pieces and then perhaps even relies on the paint to help hold it all together as well as conceal the joinery.
It looks like the end of each boom section has the coupling points attached and likely with some adhesive (note the silvery/chrome looking pins under the broken sections in the pic above) and then painted over.
....like this
Surely too much stress here (if this is in fact the case) or especially strong paint stripper being used could weaken this assembly.
That's my take on it.
Chris This problem with the pins coming loose or out has happened to factory painted cranes also. It isn't just a custom paint thing, If the search thing would work you could read many posts about that problem. TWH did nothing to secure the pins inside the boom, regaurdless of custom painting or not they should have been braised together or something.
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That is an interesting thought, Randy. I see the construction is quite different from Conrad's method, but one would expect TWH did their homework in designing that configuration. Very sad - definitely not a nice surprise...
PS - I'm not any sort of structural engineer, but to my eye splitting the column into halves instead of just using simple pin construction into complete tubes looks a little questionable. Again, maybe TWH had their reasons...
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Okay CranOp. It seems the manufacturer's assembly process that I'm speculating on in my second picture is correct then?
Which, if so, it seems like a bad design idea all the way around, even if the manufacturer used an adhesive.
It seems like there would be a decent load placed on these points, which the male end pins could easily back out of the female portion of the tubing on the top side of the boom......similar to what Cheesehead's pics are showing.
Chris
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Nice crane looks good, so look on the bright side... the news isnt all over it yet and hopfuly no figurens were ingured in the collapes lol 
www.langtool.comwww.langlandclearing.comwww.prolec.co.uk/index.php“Disclaimer: the views expressed here are my own and in no way represent the views or policies of any official agency.or said above The bearer of bad news on a new site, the HYDRO-AX guy  
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a Cutter wrote:Okay CranOp. It seems the manufacturer's assembly process that I'm speculating on in my second picture is correct then?
Which, if so, it seems like a bad design idea all the way around, even if the manufacturer used an adhesive.
It seems like there would be a decent load placed on these points, which the male end pins could easily back out of the female portion of the tubing on the top side of the boom......similar to what Cheesehead's pics are showing.
Chris Yep the second picture is correct Chris, The boom tips/connection point is a major structural piece of the crane. They should have designed that part of the crane better, In my post the pins didn't just come out they actually tore out of the tubing. This is a major design flaw in re guards to building a lattice boom. There is a great load on the boom, those joints fail even with non-custom cranes. Oilers crane didn't just break on the custom painted sections it also snapped on a factory painted section.
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Ideally with the pendants all the correct length, you should have compression throughout the boom. If the pendants are a bit long (allowing the boom to sag just a hair,) it would seem shear forces will develop on the split parts of the boom which means the horizontal pin is taking all the load. Just doesn't quite add up to a good design...
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i lue of all this and the other issues with some of TWH product ,,, i think i may put my Peso's in the tried and true NZG,, or Conrad...
i really hope that TWH dosent start getting snotty with there costomer service ,,because others have reported good repore in regards
but the quality sometimes maskes a person wonder.........
good luck with getting it all fixed up guys ,,and let us know how TWH handles the situation(s) you guys are in.. it is a shame for the money involved
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twh has good service but their booms suck.my 18000 looks like a noodle.
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Let me add my two cents if I may.....
First let me say it's a shame this is happening as they look like beautiful models.
My question would be - did any of the models that had boom collapse have a load suspended from them? Or were they displayed at a low boom angle?
Reason is ,as with the prototype booms and pendent lines, they are designed for lifting loads. A long boom has alot of deflection in it when it sits idle without a load. The prototypes are obviously designed to stand idle without a load. The biggest rig I was ever in was a 4100 ringer that had about 300 ft of boom and a 100 ft of jib. I stood behind the operator as it was boomed down for an impending storm. I could not believe how bad the boom bowed in deflection when it got down to almost the eye level! I thought it was going to snap in half.
Point of story is- maybe a load on these models will counter act the deflection so there isn't so much stress in the middle of the boom trying to fold it in half. I would also imagine, like the prototype, a higher boom angle while diplayed could help offset a possible folding as there is less stress on the boom connecting points and more on the butt section pins where it should be.
We rally round the family, with a pocket full of shells.....
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Just to add, I painted the pieces white here for oiler. No stripping or chemicals were used. Just a spray on primer and enamel over the red. TWH paint does not come off unless you use explosives-the paint, which I believe to be Dupont Automotive, is though as nails. There have been numerous posts about pins pulling out on this crane from the day it was released. I know many forum members pre empted this even by pulling the pins and gluing them in themselves. I am really sorry guys for the problems. I plan on trying my hand at customizing my 16000 and will apply what you unfortunately learned.
Bob Bobs CranesCome Over To The Lift Side . . . . . . . We Have Cookies!!!!
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Bobm2004 wrote:Just to add, I painted the pieces white here for oiler. No stripping or chemicals were used. Just a spray on primer and enamel over the red. TWH paint does not come off unless you use explosives-the paint, which I believe to be Dupont Automotive, is though as nails. There have been numerous posts about pins pulling out on this crane from the day it was released. I know many forum members pre empted this even by pulling the pins and gluing them in themselves. I am really sorry guys for the problems. I plan on trying my hand at customizing my 16000 and will apply what you unfortunately learned. Bob, I had trouble stripping the paint off also. I was able to strip 90% of the paint off the boom sections. The butt and head was the hardest section to strip, i bought the strongest stripper on the market. I just couldn't believe my eyes when i walked in and saw mine buckled. Which is weird is that Oilers buckled forward and mine buckled over the back of the crane. I had no load on the hook and a short boom on it
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