NR TWI 3P030
How to Manage Gall
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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 manage gall of the rail and gall of the chair.
Gall is not an isolated defect.
It may affect many different places in the same rail.
There are two types of gall:
• Vertical - where the underside of the rail foot is worn away.
• Lateral - where the side of the rail foot is worn away.
See also separate instructions:
TWI 2G047 How to measure rail depth
TWI 2P008 How to recognise rail defects
TWI 3P039 How to manage rails in tunnels
Document History
NR TWI 3P030
March 1, 2005
How to Manage Gall
Introduction
This Track Work Instruction covers how to manage gall of the rail and gall of the chair.
Gall is not an isolated defect.
It may affect many different places in the same rail.
There...