NR TWI 2S015 ISSUE 1 PDF

Introduction

This Track Work Instruction covers how to recognise the failure of any track bolt. These can occur in fishplated joints crossing assemblies, switch blocks and check rails.

Failure means not only a broken bolt but also a bent bolt and one with a damaged thread..

There are separate instructions covering:

TWI 2C016 How to change stud bolts

TWI 2C020 How to change fishbolts

TWI 2C025 How to change check rail bolts