NR TWI 2S074
How to Replace an S&C Check Chair
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| Organization: | NR |
| Publication Date: | 1 March 2005 |
| Status: | active |
| Page Count: | 4 |
scope:
Introduction
This Track Work Instruction covers how to change an S&C check chair, baseplate or bracket under a check rail.
There are major differences between FB and BH installations.
See also separate instructions:
TWI 2S005 How to change an S&C block
TWI3S101 How to install a check chair in a continuous extended parallel wing check rail.
Note. Always contact the Signaller before you start work on S&C and state what you intend to do. You will need to arrange a blockage of the line.
Document History
NR TWI 2S074
March 1, 2005
How to Replace an S&C Check Chair
Introduction
This Track Work Instruction covers how to change an S&C check chair, baseplate or bracket under a check rail.
There are major differences between FB and BH installations.
See also...