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Locomotive Phases - ALCO/MLW C-424

These phases are consistent with commonly used C-424 phases, with the addition of Phase 3b.

Phase 2, 3a and 3b are respectively concurrent with Phase 1, 2a and 2b for the ALCO C-425.


Phase 1

Phase 2

Phase 3a

Phase 3b

Other details

CP C-424

MLW C-424's used by CP received several exterior modifications during their time in service:

Additionally, several CP C-424's received alternators from retired M-630 units late in their service careers. These units were CP 4202-4206, 4210-4211, 4213-4215, 4220, 4223, 4228, 4234 and 4244 (possibly others in the mid-1990s). Externally, this modification resulted in the addition of a third air reservoir under the left walkway (for air start) and an additional curved housing above the central air intake. The piping normally located under the left walkway was shortened to make room for the air reservoir. The exact location of the shortened piping and air reservoir straps varied between units.


In May 2013, I made a trip to Exporail and took ground-level measurements of many of the locomotives there. The first drawings to benefit from these measurements were MLW C-424 variations.


MLW C-424 - conductor's side
MLW C-424 - engineer's side

 Copyright © Michael Eby - Last updated 2018-01-11