TM 55-2210-223-12 TO 45A2-2-14-41 1-10.  EQUIPMENT DATA (cont) (2) Diesel Engine. Manufacturer  ................................................ Caterpillar Tractor Co. Type  ............................................................. 3508 Number of Cylinders ..................................... 8 Bore and Stroke  ........................................... 6.7 in. x 7.5 in. (170 mm x 190 mm) Displacement  ............................................... 2105 cu in. (34.5 L) Firing Order  .................................................. 1-2-7-3-4-5-6-8 Governed Speed  .......................................... 1200 rpm Rotation (viewed from flywheel)..................... Counterclockwise Brake Horsepower modified to ...................... 500 BHP (373 kW) Fuel .............................................................. Diesel oil Fuel System  ................................................. Direct injection Cooling System  ............................................ Liquid (centrifugal pump) Starting System  ............................................ Battery Lubricating System  ....................................... Pressure feed (3) Main Generator. Manufacturer  ................................................ Westinghouse Electric Co. Type  ............................................................. 1604 C Voltage ......................................................... 600 dc Capacity  ....................................................... 350 kW Speed (Safe Maximum rpm) ......................... 1325 (4) Exciter-Auxiliary Generator. Manufacturer  ................................................ Westinghouse Electric Co. Type  ............................................................. YG-49-D Voltage ......................................................... 75 dc auxiliary generator 75 dc exciter Speed (Safe Maximum rpm) ......................... 2345 auxiliary generator ................................................................. 2345 exciter (5) Traction Motor. Manufacturer  ................................................ Westinghouse Electric Co. Type  ............................................................. 974-A Voltage ......................................................... 640 dc Amperes ....................................................... 600 Gear Ratio .................................................... 14:72 Safe rpm  ...................................................... 2200 (6) Air Compressor. Manufacturer  ................................................ Westinghouse Air Brake Co. Model  ........................................................... 2 CDB Bore 1st Stage .............................................. 7.75 in.  (196.8 mm) Bore 2nd Stage  ............................................ 4.25 in.  (107.9 mm) Stroke ........................................................... 5.625 in.  (142.8 mm) Displacement  ............................................... 92 cfm at 600 rpm 1-9