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b.alto
USA
1001 Posts |
 Posted - 03/09/2010 : 06:41:42
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The fulcrum was too close to the truck, mathematically it's unavoidable not to lift the truck. Especially on the longer booms. Divide the length of the boom, by the distance from the out rigger to the truck.
126'(42m)/6 feet= 21 times mechanical advantage. If you lower the difference in out rigger extension to say 5 feet. 126'/5'=25.2 times the lift, or even 4' 126'/4'=31 times the lift. It adds up quick!
I wonder if this guy even had mud in his hopper yet?
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Speedy
Canada
4194 Posts |
Posted - 03/09/2010 : 07:03:57
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| I was wondering that to Brian. Looks clean around the hopper area. |
If you can't fix it with a hammer....you've got an electrical problem. |
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Jim
USA
657 Posts |
Posted - 03/09/2010 : 07:08:38
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quote:
Originally posted by Speedy
The first job I did with my pump I short-rigged 3 outriggers. The job was over the front, between the front riggers, which were fully extended. At no time did I work with the boom past the 'safe' area of the fully extended out riggers. I like the 'Dragonfly system.
How many outriggers did you say your pump had Speedy?? |
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Speedy
Canada
4194 Posts |
Posted - 03/09/2010 : 09:23:20
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I knew that wasn't communicated the best...you had to be there.
Here's the job I'm talking about:
(Pay no attention to the space/time continum thing going on in the picture.) 
The front outriggers were not at their widest stance, but the 'beams' were extended fully, in this way, the distance from the turret to the forward-most 'footprint area' is actually further than normal.
Refer to REED's Bigger Piece of the Pie graphic:
In the photo below, they are fully swung and extended:
The passenger side rear outrigger could maybe have gotten another 2 feet of spread, (top picture) if it were not for the evergreen tree.
I stood the boom straight up before rotating it to the front to unfold, same in reverse at the end of the pour.
CAPICE?
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If you can't fix it with a hammer....you've got an electrical problem. |
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Jim
USA
657 Posts |
Posted - 03/09/2010 : 09:36:02
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| OIC. I forgot that you can move your wings around. One would think that if a guy lives where you can see your dog run away for a week that you wouldn't need to worry about setting up a pump. LOL |
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Speedy
Canada
4194 Posts |
Posted - 03/09/2010 : 10:11:17
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There are some situations where the set-ups get tight.
Obviously, that job didn't really need a pump, especially a 42, but I don't think it's my place to talk people out of pumping.
So far, it's the only slab I've done. |
If you can't fix it with a hammer....you've got an electrical problem. |
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biged
3088 Posts |
Posted - 03/09/2010 : 14:01:22
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| Capice is German |
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Speedy
Canada
4194 Posts |
Posted - 03/09/2010 : 14:18:39
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From: http://en.wiktionary.org/wiki/capisce
CAPISCE
Alternative spellings
capice, capicé, capiche, capeesh, capisch, capishe, coppish
Etymology
From Italian capisce, third person present tense form of capire “to understand”, from Latin capere “to grasp, seize”. Related to capture.
"capisce" is a dialectal form of italian "capisci" second person present tense.
Pronunciation
IPA: /ka.'pi#643;/, SAMPA: /k@."piS/
Interjection
capisce
(slang) "Get it?"; "Understand?".
1995 Bart Simpson. The Simpsons, episode 3F07.
Brodka: Hey, kid: one more thing. If you ever set foot in this store again, you'll be spending Christmas in juvenile hall. Capisce? Well, do you understand?
Bart: Everything except "capisce."
1996 Andy and Larry Wachowski, Bound, Dino De Laurentiis Productions and Spelling Films
Gino Marzzone: You gotta start respecting Johnny, the way you respect me. Capisce?
1997 Eric Bogosian. Notes from Underground, page 138
It's very simple, George, you forget about this whole licensing lawsuit pipe dream of yours or you can forget about your buddy working in my factory for the next couple of years. I will be that angry. Capiche?
2003 Richard Chiappone. Water of an Undetermined Depth
I mean, if you were coming into the plant for the long haul, God forbid, then you'd have to think seriously about the money. Capiche?
1987-1995 Jeff Franklin, Full House
Jesse Katsopolis: Capisce?
Usage notes
Often used in a threatening manner, suggesting the Italian Mafia.
Without a question mark at the end, it is sometimes used to mean, “I understand,” as an American colloquialism. In Italian, that would actually mean “he/she/it understands”. To mean “I understand,” one would actually say “capisco.”
From: http://www.urbandictionary.com/define.php?term=capice
1. Capice
Asking for agreement, understanding, belief. Answered with itself. Often used in italian mafia-type settings to emphasize understanding.
Frank: "If you dont shutup, I'm going to bust your frickin head open with a baseball bat, capice?!"
Tony: "Capice" |
If you can't fix it with a hammer....you've got an electrical problem. |
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zxa
Canada
114 Posts |
Posted - 03/09/2010 : 15:00:18
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| speedy, the way you are install on your pic...plus you pump right on the front of your truck...there"s no danger at all...it just ask to be a little carefull,and of course when you had fold your boom at the end you have turn it on the left side...i guess?? |
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biged
3088 Posts |
Posted - 03/09/2010 : 15:20:18
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| Look what you get for asking, I hope you don't think I understand what you wrote. |
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Speedy
Canada
4194 Posts |
Posted - 03/09/2010 : 15:42:52
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Ed, 'capisce' is Italian.
zxa, yes, I brought the boom to the front over the left side and folded it up the same way.
Keeping the extended boom within the angle set out by the front outriggers' footprint and turret is the safe zone. It's well illustrated in the 'Bigger Piece of the Pie' graphic. |
If you can't fix it with a hammer....you've got an electrical problem. |
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Canpump
Canada
11 Posts |
Posted - 04/05/2010 : 17:42:15
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| Sorry for not posting for a couple of years. The truck was a 40m concord. Job was finished and he had pumped down while flat out with a 25' length of 3" off the tip. The mixer had pulled away and he was lifting the boom. I guess the weight of the full pipes and hose without a full hopper was too much for it. The ground was pretty much level and I have been told that the outriggers were all the way out. He was also at the tip end of the truck not watching the truck when it happened. (again I was not there this is just what has been explained to me). |
It is easier to beg for forgiveness than permission |
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Speedy
Canada
4194 Posts |
Posted - 04/05/2010 : 18:06:45
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| That sounds plausible. The 40M Concords are a bit tippy, they have the same front outrigger spread as the 38's and 36's, a quick check shows same front spread for the 33 and the 32. It begs the question WHY? With only the rear outriggers being longer/wider, so stability suffers when booming off the side biased towards the front of the truck. I think you'd want the outrigger tank opposite to be full. With very little mud in the hopper for additional counterweight, you can easily see it happening. |
If you can't fix it with a hammer....you've got an electrical problem. |
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Pump tips in Victoria, BC
