Crane operators often have tolerances of 1/4" to 1/8" to get their load set in place. The tightest I have ever seen was a separator that had 0.0020" clearance. The bolts actually scraped the paint out of the holes as we set it. Those bolts had to be set perfectly as the bottom plate was 1" thick and we could not cut it to enlarge the hole.
RJ
"Something hidden, Go and find it. Go and look behind the ranges, Something lost behind the ranges. Lost and waiting for you. Go." The Explorers - Rudyard Kipling
http://sweetwater-photography.com/
Crane operators - all varieties - get paid good money for their skills. Their lifts and set downs have to be very near perfect EVERY time or somebody or something gets damaged or killed.
Never too old to have a happy childhood!
The crane operators who do this sort of thing on a regular basis get VERY good at putting those trailers EXACTLY where they belong, especially when they and the ground crew are a regular team.
At that, they have a (little) more slack than container handlers. The fifth wheel has a gather slot several inches wide. Containers have to be put down exactly on top of four fist-size ogives that don't allow much over an inch off-center.
Chuck
Part 1 went so well, we will try another subject.
Watching a whole train of empty spine cars with what I believe to be 5th wheels on each one. This is one of those trains I think would be so dangerous to motorists not paying attention in the dark of the night....(look down a little)
But I digress. I think - they crane those trailers off and on the spine cars. Now, how do they get them on the 5th wheel? Very experienced crane operators with very experienced ground help - or....?
This is so much fun - I look and you explain....
She who has no signature! cinscocom-tmw
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