M4 751 at Ragama in 02.04.2023
SLR Class  :-  M4
Manufactures Model :-  MX 620
Introduction year :- 1975
No of Locos :- 14 
Loco Nos  :-  743 to 756
Builder :- Montreal Locomotive Works
State :- Canada
Prime Mover  :- ALCO V12 25 1 C3
Mode of Power transmission :- Diesel Electric (AC to DC Power Transmission )
Power  :-  1700 hp
rpm :- 1050
Weight :- 98 ton
Length :-  58' 3&quot;
Wheel arrangement :-  Co-Co
Brake system : - Air and Vacuum
Max speed  :- 104 Km/h
Gauge : -  1676 mm
Type :- Locomotive
Purpose/Used line :- Main line Passenger and Freight train Presently not  to run beyond Rambukkana.

M4 753,754,755 and 756 were Special designed with Dynamic Brake  for  Upcountry (Colombo to Badulla) Rail track.
M4 750 damaged due to Bomb blast at near Vavniya in 2000 back in service after repair.
M4 752 re painted Red and Yellow  colours for use  Jaffna Intercity. again Repainted Blue &amp; Silver.
Upgraded with Air brake at C.M.E. Ratmalana.
M4 751used for Inaugural run “Yal Rani”  Passenger Train Between Kankasantrei Murukandi in 11.07.2022
All Locomotives are presently on service.
 
M4s were named,
743 : Madu
744 : Sigiri
745 : Ruwanweli
746 : Namunukula
747 : Kelani
748 : Walawe
749 : Dunhida
750 : Isurumuni
751 : Diyaluma
752 : Point-Pedro
753 : Samanala
754 : Menik
755 : Mahaweli
756 : Luxapana

Information as at  10.04.2023

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