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What are Locking Tables and Pull Sheets?

April 26, 2017locking pull sheets tables

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What are Locking Tables and Pull Sheets?

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A Locking Table is a table that gives the complete set of interlocking relationships among signal and point levers in a cabin. A Pull Sheeet is similar, in that it conveys the same information, but is geared towards the lever operator’s convenience in showing which other levers need to be pulled for any lever. A sample locking table is shown below.