TM 55-2210-223-34
TO 45A2-2-14-22
3-62. TRACTION MOTOR ASSEMBLY (cont)
CLEANING, INSPECTION, AND REPAIR (cont)
41. Refer to table 3-7 for traction motor data.
Table 3-7. Traction Motor Data
ITEM
SPECIFICATION
Maximum Operating Limits:
Volts
640 dc
Amperes
600 amps
Safe speed
2200 rpm
Brushes:
Number of brush arms
4
Brushes per arm
2
Size of brush
3/4 x 1-1/2 x 2-1/4 inches
(19.1 x 38.1 x 57.2 mm)
Brush pressure with full-length brush
7 to 9 pounds (3.2 to 4.1 kg)
Weights:
Motors with lubricators, pinions, and axle
3400 pounds (1542.2 kg)
bearings
Armature complete
805 pounds (365.1 kg)
Resistance of Windings:
Armature
0.0370 ohms
Commutating fields
0.0145 ohms
Series fields
0.0210 ohms
Armature Bearings:
Pinion end
Free roller
Commutator end
Thrust roller
Traction Motor Support Axle Bearings:
Type
Sleeve
Oil level
2-1/4 inches (57.2 mm)
maximum
Pinion Application:
Teeth in pinion
14
Application temperature
273.2F (134C) above shaft
temperature
Advance limits
0.046 to 0.056 inch (1.17 to
1.42 mm)
3-240
