ROLLER AR-TRACK & CARRIER 5119710 - Caterpillar

2N6397 24V (Motorola Number MA24-902A or 8MA3006F), 2N6398 24V (Motorola Number MH24-902A or 8MH3005F)
Rotation is clockwise when seen from drive end.Output at 1800 rpm and 28 V (cold) ... *21.5 AOutput at 2500 rpm and 28 V (cold) ... *31 A*6.5 to 9.3% higher with no regulator.Rated output (hot) in air temperature of 77°F (25°C) ... 35 ASpeed at 5000 rpm and when temperature and output are not changing:2N6397 ... 32.6 A2N6398 ... 31.2 AField current at 24 V and 80° (27°C) ... 1.7 A(1) Torque for nut ... 45 5 lb. ft.(60 7 N m)(2) Tension of brush spring ... 6 to 8 oz.(1.67 to 2.22 N)Torque for electrical connections on alternator ... 20 2 lb. in.(2.3 0.2 N m)2N7759 12V (Motorola Number 8MH-2003K)
Rotation is either direction.Output at 5000 rpm and 14 V, cold (connect a carbon pile to the battery to get maximum output) ... 50 ARated output (hot) ... 50 AField current at 12 V and 75°F (24°C) ... Maximum 3 A(1) Torque for nut ... 45 5 lb. ft.(60 7 N m)(2) Tension of brush spring ... 5.5 to 7 oz.(1.53 to 1.95 N)Torque for electrical connections on alternator ... 20 2 lb. in.(2.3 0.2 N m)