Specifications

RailCorp Infrastructure Engineering Manual – Signalling

Maintenance Manual

Electric Point Machine Westinghouse Style M70 MKIII TMG E1583

4.8 Manual Cranking Device

4.8.1 Description

Manual operation is obtained by inserting a crank handle through a separately covered

hole in the cover of the machine. Opening of the cap on the cover reveals the yoke of

the cut-out mechanism, shown in Figure 4.8.1. Pushing the yoke across allows the

crank handle to be inserted onto the cut-out spindle and simultaneously opens the cut-

out switch through an extended shaft to disconnect the motor. Removal of the crank

handle re-closes the cut-out switch and restores the motor circuit.

4.8.2 Adjustment of Cut-Out Switch

Adjustment is achieved by the adjusting bolt as shown in Figure 4.8.1. The bolt should

be adjusted so that it just touches the plunger of the cut-out switch when the yoke is in

its normal position.

Issue Date: 1 December 2009 Uncontrolled when Printed