Specifications

RailCorp Infrastructure Engineering Manual – Signalling
Maintenance Manual
Electric Point Machine Westinghouse Style M70 MKIII TMG E1583
7.4 Fault Finding Chart 4 - Point Machine Operates but Detection Fails
Most Likely
Emergency
Subsequent
Fault
Causes
Action
Action
Detector slides or rods
damaged
Point machine operates
but detection fails
Detector slides out of
adjustment
Internal linkage
damaged or displaced
Replace detector slides
Re-adjust detector
slides in accordance
with appropriate
procedures
Faulty detection
switch(s)
Re-align or replace
linkage and re-adjust
circuit controller
Loose connections in
circuit controller wiring
Replace faulty switch(s)
Clean and tighten
terminations
Version 1.0 © RailCorp 2009 Page 52 of 52
Issue Date: 1 December 2009 Uncontrolled when Printed