Name:
NR TWI 2C015 ISSUE 1 PDF
Published Date:
03/01/2005
Status:
[ Active ]
Publisher:
Network Rail
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
| Edition : | 1 |
| File Size : | 1 file , 73 KB |
| Number of Pages : | 3 |
| Published : | 03/01/2005 |
