3-64. TRACTION MOTOR ASSEMBLY (cont)
45. Place housing and bearing assembly on induction heater and heat assembly to 194°F (90°C).
46. Remove housing and bearing assembly from heater and install on shaft of armature (37). Check that inner race of
bearing is tight against seal collar (36). Hold in place until cooled.
47. Install clamping plate (33), two tab bars (32), and four capscrews (31). Tighten capscrews uniformly to 90 ±10 lb-ft
(122 ± 13.6 N.m). Lock capscrews by bending corners of tab bars against flat part of capscrew heads.
48. Position gasket (30) and grease-packed bearing cap (29) on bearing housing (35). Install four flat-head screws (28).
Rotate bearing assembly by hand and check for freedom of rotation.
49. Position shim pack (41) and end plate (40) on motor housing (42) and install eight lockwashers (39) and capscrews
Components of the traction motor are heavy and may be awkward to handle. Use correct lifting
procedures, indicated lifting devices, and/or assistance from other personnel to avoid injury.
50. Use a suitable lifting device and place motor housing (42) in horizontal position on a suitable support device.
51. Wrap insulating paper around commutator of armature (37) to prevent damage. Install two 3/8-16 by 15-inch (381
mm) guide bolts into tapped holes in bearing housing (35).
52. Place a sling around the punchings of armature (37), next to fan end. Use a suitable lifting device and lift armature
in a horizontal position until it is level with the bore of motor housing (42).
53. Guide armature (37) into motor housing (42). Take care not to damage commutator, and insert the two guide bolts
through the two lower capscrew holes in end plate (40).