MLW M-636
Mount Newman Mining 5497 at the Don Rhodes Mining and Transport Museum, Port Hedland, Western Australia in April 2012
Type and origin
Power typeDiesel-electric
BuilderMontreal Locomotive Works, AE Goodwin, Auburn, NSW (licensee), Comeng, Granville, NSW/Bassendean, WA (licensee)
ModelM-636
Build dateSeptember 1969 – February 1980
Total produced185
Specifications
Configuration:
​
 • AARC-C
 • UICCo′Co′
Gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
TrucksDofasco ZWT-3 Hi-Ad, ALCo Hi-Ad
Wheel diameter40 in (1,000 mm)
Length69 ft 10+1⁄2 in (21.30 m)
Width10 ft (3.0 m)
Height15 ft 3⁄4 in (4.59 m) (cab roof)
Fuel typeDiesel
Prime moverAlco 16-251F
RPM range1100
Engine typeV16 diesel engine
AspirationTurbocharged
AlternatorGE GTA11
Traction motorsEMD D77
Cylinders16
Train brakes26L
Performance figures
Power output3,600 hp (2,700 kW)
Factor of adh.29%

The M-636 is a six-axle, 3,600 hp diesel locomotive marketed as part of the Montreal Locomotive Works six-axle "M-Line" series of locomotives. It was essentially the Canadian-built version of the ALCO Century 636, and it saw many sales to Canadian, Mexican and Australian customers. Today, there are a handful M-636s left in revenue service.

Original owners

Units built by Montreal Locomotive Works[1]
Railroad Quantity Road numbers Notes
Canadian National Railway 40 2300–2339 Units were ordered without dynamic brakes.
Canadian Pacific Railway 44 4700–4743
Quebec Cartier Mining 11 71-76, 81-85
Ferrocarril del Pacífico 16 651-666
Units built by AE Goodwin[2][3][4]
Railroad Quantity Road numbers Notes
Cliffs Robe River Iron Associates 7 9410–9416
Hamersley Iron 19 4030-4048
Mount Newman Mining 16 5469–5484 All were built with ALCo Hi-Ad trucks.
Units built by Commonwealth Engineering
Railroad Quantity Road numbers Notes
Cliffs Robe River Iron Associates 3 9421–9423 9423 was the last M636 built in February 1980.
Hamersley Iron 8 4049-4056
Mount Newman Mining 21 5485–5505 5485-5495 were built with ALCo Hi-Ad trucks. 5496 and up were built with the standard Dofasco ZWT-3 Hi-Ad trucks.
Total185

See also

References

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