Alco SSB-9 (DL461)

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
New: 2 May 2005 Drawing by: Jacques Belanger
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Engine Builder: Alco Engine: 4-cycle Model 251B 6L
Bore & Stroke 9" X 10.5"
RPM (Maximum / Minimum) 1000 / 375
Main Generator: GE - GT553 Horsepower: 900
Gear Ratio: 74:18 Speed: 60 mph
Trucks: 4-Wheel Configuration: B-B
Traction Motor Blowers: Mechanical Driven (2) Model: Stuart
Weight: 230,000 lbs / 200,000 lbs Traction Motors: GE 731 (four) / same
Tractive Effort (starting) 61,500 lbs @ 35% / Same Tractive Effort (continuous): 46,000 lbs @ 5 mph / Same
Multiple Unit Capability: Yes Dynamic Braking: No
Auxilary Generator: GE GMG139 Type 5 Alternator: --
Air Brake: Westinghouse Model: 26L
Compressor: Westinghouse Model: 3CD
Quantity Built: 126 Dates: 5/1955 to 12/1960
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Exterior Dimensions SSB-9 (Comprised of a S-6 and S-6B)
Total Length 22'-03" / 22'-03"
Pilot to Pilot 36'-06" / 36'-06"
Wheel Diameter 40" / 40"
Truck Wheel Base 8'-00" / 8'-00"
Height to Top Engine Hood 12'-03" / 12-'03"
Height to Top Cab Hood 14'-08" / --
Cab Width 10'-00" / 10'-00"
Top Walkway Width 8'-02" / 8'-04"
Walkway Width 5'-00" / 5'-00"
Engine Hood Width 9'-11" / 9'-11"
Center Bolster 22'-00" / 22'-00"
Center Front Truck to Front Pilot 7'-06" / 7'-06"
Center Rear Tucrk to Rear Pilot 7'-00" / 7'-00"
Distance between Truck Centers 30'-00" / 30'-00"
Minimum Turning Radious 50 degrees / 50 degrees
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Fuel Oil: 635 / 635 Lubricating Oil: 140 / 140
Engine Cooling Water: 110 / 110 Sand Capacity: 26 cu. ft. / 26 cu ft.
Options: Dynamic Brakes
  • Air Signal Lines
  • Hump Control
  • Stanley Heater
Reference Sources:
  • Extra 2200 South The Diesel Builders, Volume 2 by John F. Kirkland
  • Alco: A Centennial Remembrance, by Richard T. Steinbrenner

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