Specifications

RailCorp Infrastructure Engineering Manual – Signalling

Maintenance Manual

Electric Point Machine Westinghouse Style M70 MKIII TMG E1583

25mm x 150mm strip of emery cloth tightly around the commutator, face out-

wards and rotate against the brush in both directions until seating is improved.

5.9 Circuit Controller and Detector Contacts

Visually check the condition of all contacts and observe the operation of each contact

assembly ensuring adequate wipe of the contacts as the machine is operated by hand.

Replace any contact assemblies which have pitted or burnt contacts. Check the

adjustment of the contact assembly push rod and adjust if necessary as in Section

4.5.2.

5.10Point Contactor

The point contactor is a sealed unit and must be closely observed during operation

and changed if contacts appear to be badly burnt or pitted.

5.11Motor Protection Unit

Test the motor protection unit by obstructing points with a wood block or similar and

ensure that the motor is cut off in approximately 10 seconds. If it is less than 7

seconds temporarily wire the unit out of circuit and replace as soon as practical.

5.12Draining

During each maintenance visit, remove the 9.5mm B.S.P. drain plug (located in the

crankcase cover under the machine) for draining the machine, particularly if freezing is

likely.

5.13Adjust Clutch

Check and adjust the clutch in accordance with procedures outlined in Section 4.2.2.

5.14Clean Point Machine

Clean all excess oil and foreign matter from the machine, particularly the slides.

Issue Date: 1 December 2009 Uncontrolled when Printed