Beaton Industrial, Inc. is the leading Material Handling supplier for the Northeastern United States. Established in 1989 we distribute, install, and service Material Handling equipment nationwide. Visit BeatonIndustrial.com for more information!
im in my second year of my apprenticeship and just finished part one of my theoretical and practical exam and now all trainees have to get a crane license so we are currently having lessons for it ( one of the instructors has a continuing education to teach and do the practical and written exam for all training every year, he gets paid for it but the company doesnt have to pay a whole lot of money for each trainee) and we they showed us this exact video as a what not to do and what can go wrong and all that. but we also had a incident with a 16t overhead crane where one of the bolts that has to be screwed in to where the rope or chain is attached to the crane wasnt tight enough and slipped out and it luckely wasnt the whole product but just the empty case before everything gets put in. but it broke. not fixable. totaled. big loss but fortunetely no one was hurt
but apparently there was a incident a long time ago like 1990 or something before the clothes like the pants had glowing parts. someone operated a crane with a big load and it was almost end of shift so most people where gone and a lot of lights where out ( plus the lighting wasn't as good as it was today). and he saw an empty spot and said ill put it down here and go home. but it wasn't a well lit spot so he didn't see the 2 people that where leaving shift walking there and sat the load on top of them. he didn't notice cause they where dead immediately and under so he left shift and they weren't found until morning by the other shift. since then we have those reflective stuff on the pants and everyone that is allowed to operate a crane has to renew the safety stuff for the crane at a seminar.but even then anything can happen
You could tell by the sound that the hoist control braking was not 100% effective and the holding brake was basically shot. Fortunately, today we use four quadrant flux vector frequency drives which can hold a 125% load stationary with no motor heating. You can lower a load at less than 1/40th synchronous speed without a mechanical load brake. Of course, if you lose power to the crane there must be a spring set holding brake to arrest and hold the load until the controls are repaired.
I bet that guy in the blue overalls was glad he moved when he di! And I bet he needed a clean pair of briefs. And what the hell WAS that device they were assembling anyway?! Scary!
We had an accident at my plant, IAI industries many years back, A brand new cable on a 30 t. overhead crane snapped due to the cable was eaten from the inside. When it was rigged up again the same cable snapped again after less than a year. The crane routinely was used with overload, The max load of 30 t. was routinely exceeded, You could see the cable stretch like a rubber band when you stopped hoist down. Many times it was used to lift under misalignment. A crane is made for normal SWL load under normal XYZ axis, Not for moving dropped load out of some tight spot.
Yes, it happened to me as well. I am always fascinated and annoyed by people who are casually walking around the heavy loads. Nobody knows what is happening with nylon slings, a crane shaft or entire crane structure. You have to ALWAYS keep distance from lifting objects!!!
