NR TWI 2C015
How to Install Long Chairscrews
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| Organization: | NR |
| Publication Date: | 1 March 2005 |
| Status: | active |
| Page Count: | 3 |
scope:
Introduction
This Track Work Instruction covers how to fit the LSA (or LS) long chair screw. Long chairscrews (LSA or LS) are sometimes used as a maintenance screw.
Although they are longer than AS screws, they are not s s fatter at the top. They are used mainly on longitudinal bridge timbers or on two level baseplates.
The letters LSA (or LS) are marked on the head.
See also separate instructions:
TWI 2C013 How to fit AS chairscrews
TWI 2C015 How to fit maintenance screws
Document History
NR TWI 2C015
March 1, 2005
How to Install Long Chairscrews
Introduction
This Track Work Instruction covers how to fit the LSA (or LS) long chair screw. Long chairscrews (LSA or LS) are sometimes used as a maintenance screw.
Although they are longer than AS...