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| Re: SMEE (244702) | |||
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Re: SMEE |
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Posted by TransitChuckG on Sun Apr 23 08:35:24 2006, in response to Re: SMEE, posted by Jeff H. on Sun Apr 23 02:20:25 2006. It's very similar to the system used on tractor-trailers.Thanks, Jeff. In tractor -trailers (semi-trailers), a spring brake activates in emergency situations. Look under a semi-trailer and you will see big pots on the axle. After the emergency is over , you have to unwind them. http://en.wikipedia.org/wiki/Semi-trailer |
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