A Quick Easy Lesson on How to Dismantle a Lattice Boom Crane
On April 10, 2017, the wheel-mounted lattice boom crane arrived on site and was quickly put into operation lifting heavy equipment out of the pit. One of the pieces of equipment was a hydraulic boom crane, which would be used to add the lattice (members) sections to a total length of 240 feet. One month and one day later, the trucks returned along with the crew to dismantle the crane. It is interesting to note that it takes a smaller crane to erect the crane but the crane can dismantle itself. The following photographs depict how the crane is dismantled.
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Step one was to move the lattice hammerhead section to a predetermined spot, where later it will be attached to the butt end or boom foot section of the crane once it has been separated from the first boom section.
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The top view of the Hammerhead.
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Nathan guides the main block as it is lowered to the asphalt. The block will be hooked up to the shorter hammerhead boom.
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Once the Hammerhead boom and the main block are positioned, the crane operator begins to slowly lower the boom. Nathan in the foreground guides the tip as it is lowered to the asphalt.
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Once the jib tip sheave is resting on the asphalt, the crane operator will position the rest of the boom so that the crew can begin removing the pins that hold the sections together.
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Looking down the long corridor of tubes of the lattice-work boom.
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Looking down the short corridor of the hammerhead lattice-work boom.
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Breaking free: With the four pins removed, the butt section breaks free from the rest of the boom. Now the crane will be moved slightly in order for the butt section will connect with the white hammerhead at the far left.
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John directs the crane operator as he brings the two sections together. Once the holes are properly aligned, the four corner sections will be attached by the pins (two on each side) on the asphalt.
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Breaking free: With the four pins removed, the butt section breaks free from the rest of the boom. Now the crane will be
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How come we only have had one base isolator delivered as of today? TAOP1 – 13
My understanding is that, the isolator base on site is a mock up, the others are still at the manufactures. Incidentally, what does “TAOP1 – 13” mean? Am I missing something?