MLW M-636

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 type Diesel-electric Builder Montreal Locomotive Works, AE Goodwin, Auburn, NSW (licensee), Comeng, Granville, NSW/Bassendean, WA (licensee) Model M-636 Build date September 1969 – February 1980 Total produced 185
Specifications Configuration: ​  • AAR C-C  • UIC Co′Co′ Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Trucks Dofasco ZWT-3 Hi-Ad, ALCo Hi-Ad Wheel diameter 40 in (1,000 mm) Length 69 ft 10+1⁄2 in (21.30 m) Width 10 ft (3.0 m) Height 15 ft 3⁄4 in (4.59 m) (cab roof) Fuel type Diesel Prime mover ALCo 16-251F RPM range 1100 Engine type V16 diesel engine Aspiration Turbocharged Alternator GE GTA11 Traction motors EMD D77 Cylinders 16 Train brakes 26L
Performance figures Power output 3,600 hp (2,700 kW) Factor of adh. 29%

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

Original owners

Units built by Montreal Locomotive Works
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
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.

See also

• M-636