| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-217-34
(c) Use a small round tool and arbor press to press the diode from the heat sink.
CAUTION
Do not hammer diode to remove it since shock of this magnitude will damage the
diodes.
e. Disassembly of Front Housing Assembly (Hulls 8500-8519 and 8520-8539).
(1) Remove woodruff key (14, fig. 4-1), flat washer (5), felt washer (6) and pulley spacer (7) from shaft.
(2) Remove three retainer screws (8).
(3) Press the rotor assembly (15) from the front housing (9) using an arbor press.
NOTE
It is not necessary to remove the grease seal (10) unless it is damaged.
(4) If necessary, remove the grease seal (10) by tapping on the seal through opening in the housing with a flat face
punch.
(5) Remove the front ball bearing (11) from rotor shaft with a bearing puller.
(6) Remove front bearing retainer (13) grease seal (10) and retainer gasket (12) from rotor shaft.
(7) Remove the hex socket screw (19) from the end of the shaft and remove lock washer (18).
(8) Unsolder two connections on the slip rings (17) being careful not to damage the fiber washer between the rings
or break the wires.
(9) Thread a 1/4 -28 x 1 inch machine screw into the end of the shaft (slip ring end). As the screw is tightened
the slip rings will back off the shaft.
(10) Remove ball bearing (16) from rotor shaft with bearing puller.
f. Disassembly into Subassemblies (Hulls 8540- 8560 and 8580-8519).
(1) Clamp the pulley (3, fig. 4-2), in a vise using an old drive belt or suitable rag to prevent damage to the pulley.
Key to figure 4-2.
1. Locking nut
34. Rear bearing retainer
2. Steel washer
35. Rear housing
3. Pulley
36. Lockwasher
4. Fan assembly
37. Bolt
5. Flat washer
38. Insulator washer
6. Felt washer
39. Flat washer
7. Pulley spacer
40. Lockwasher
8. Retaining screw
41. Hex nut
9. Front housing
42. Brush and capacitor assembly
10. Bearing seal
43. Self-tapping screw
11. Front bearing
44. Shunt lead insulator
12. Retainer gasket
45. Tapping screw
13. Front bearing retainer
46. Flat washer
14. Woodruff key
47. Insulator washer
15. Rotor
48. Hex nut
16. Rear bearing
49. Flat washer
17. Slip ring assembly
50. Insulator washer
18. Lockwasher
51. Lockwasher
19. Cap screw
52. Hex nut
20. Stator and leads assembly
53. Plastic cap
21. Carriage bolt
54. Carriage bolt
22. Field diode assembly
55. Brush connecting cable
23. Square insulator
56. Flat washer
24. Positive rectifier diode
57. Square insulator
25. Positive heat sink
58. Felt gasket
26. Round washer
59. Rear housing cover
27. Carriage bolt
60. Self-tapping screw
28. Flat washer
61. Insulator washer
29. Square insulator
62. Flat washer
30. Diodes wiring harness
63. Lockwasher
31. Negative heat sink
64. Hex washer
32. Carriage bolt
33. Negative rectifier diode
4-4
|
||
|
||
