Specifications

RailCorp Infrastructure Engineering Manual – Signalling
Maintenance Manual
Electric Point Machine Westinghouse Style M70 MKIII TMG E1583
6.2 Gear Box Assembly, Complete
Item No. Item Description Manufacturer's
Part No.
1 Bush, Upper — Main Crank 74741
2 Nut, 1 in. BSW Hex. Slotted 74742
3 Pin, Split Cotter 3/16 in. Dia
x 1 5/8 in. Lg. Tin Plate 7103
4 Bush, Lower — Main Crank M21110
5 Main Crank 71158
6 Worm Wheel 74805
7 Screw, 1/2 in. BSW x 1 1/4 in. Hex.
Steel, Tin Plate 4166/12
8 Washer, Spring, 1/2 in. Tin Plate 4024/3
9 Cover, Bearing M21226
10 Gearbox Steel EM140-13/1
11 Nut, 1 in. BSW Hex. Slotted 74742
12 Pin, Split Cotter, 3/16 in. Dia
x 1 5/8 in. Lg. Tin Plate 7103
13 Washer, Plain, 1 in. Tin Plate 4022/2
14 Seal, Milos, No. 6307JV 4944/5
15 Shim AM1780-73/1
16
Ball Bearing, Ridged Type 1.378 in.
I.D., 3.149 in. OD,
1,374 in Wide 'HOFFMAN No. 5307' 4405/4
17 Shaft, Worm 146378
18 Washer, Thrust AM1780-86/1
19 Circlip, External 4484/91
20 Pinion, Bevel — Hand Crank 146374
21 Key, Woodruff No. 9 4757/2
22 Gear — Bevel — Hand Crank 146374
23 Bush — Worm Shaft M20879
24 Gear, Clutch, Complete 147130
25
Bush, Clutch Housing, 1 1/2 in. L.D., 1 3/4
in. O.D. x 1 1/8 in. Lg.
'SHOR LUBE PART No C4856-3' 4236/19
26 Housing — Clutch M21244
27
Washer, Felt
209442
28 Nut, Round, 1 5/8 in., SAE Fine 172739
29 Disc, Clutch — Inner 146574
30 Disc, Clutch — Outer 146573
31 End Plate, Clutch 146575
32 Spring — Coil Nut, 74731
33 Special, Hex 75423
34 Pin, Split Cotter, 3/16 in. Dia x
1 5/8 in. Lg. Tin Plate M7103
35 Screw, 3BA x 1/4 in.Lg.
C'sk Hd. Steel Tin Plate M2184
36 Disc, Clutch — Liner 146650
37 Shaft 146627
38 Lockplate M20886
39 Screw, 5/16 in. C'sk Hd. Steel,
Tin Plate 4179/43
40 Gear, Transmission, Complete 146569
M.I. No.
Version 1.0 © RailCorp 2009 Page 43 of 52
Issue Date: 1 December 2009 Uncontrolled when Printed