Automatic Transmission, Lincoln Ls

2010-02-25T21:56:00.001-08:00

Transmission disassembly

Special Tool(s)

Remover, Input Shaft Oil Seal 308-375

Remover, Transmission Fluid Pump 307-397

Holding Fixture, Transmission 307-003 (T57L-500-B)

Slide Hammer 100-001 (T50T-100-A)

Remover, Torque Converter Fluid Seal 307-309 (T94P-77001-BH)

Compressor, Servo Cover 307-402

Handle, Torque Converter 307-091 (T81P-7902-C)

Remover, Output Shaft Flange 307-523

1. NOTE: Tag and identify all parts for reassembly.

Place the transmission on a bench.

2. WARNING: The torque converter is heavy, especially when full of fluid.

NOTE: If not installing a new torque converter, leave the adapter plate screwed to the torque converter.

Using the special tools, remove the torque converter and adapter plate as an assembly.

3. If the vehicle is equipped, and installation of a new or remanufactured torque converter is necessary, remove the torque converter adapter plate.

4. If the adapter plate has been removed, use the special tools to remove the torque converter.

5. Remove the input shaft.

6. Using the special tool, install the transmission into the bench with the torque converter housing facing up.

7. Remove the transmission sensors.

8. Remove the transmission range (TR) sensor.

9. Remove and discard the nut.

10. Using the special tool, remove the output shaft flange.

11. Using the special tools, remove the extension housing seal.

12. CAUTION: The parking pawl, parking pawl return spring and parking pawl shaft could fall out during removal of the extension housing.

Remove the extension housing.

13. Remove the parking pawl assembly and discard the gasket.

1. Remove the parking pawl shaft.

2. Remove the parking pawl.

3. Remove the parking pawl return spring.

4. Remove and discard the gasket.

14. NOTE: The transmission fluid pan gasket is reusable. Clean and inspect the gasket for damage. If the gasket is not damaged, the gasket should be reused.

Remove the 16 transmission fluid pan screws, transmission fluid pan and gasket.

15. Remove the transmission fluid filter and discard.

16. Remove the manual control valve detent spring.

17. WARNING: The upper and lower servo covers are under spring tension. Use care when removing the piston and cover assembly. Failure to follow these instructions may result in personal injury.

Remove the reverse servo assembly.

18. CAUTION: Do not damage solenoid body connector pins.

Remove the solenoid body assembly by lifting on the body and pushing the connector from the other side of the case.

19. Remove the main control valve body, separator plate and gasket.

20. Using the special tools, remove the converter hub seal.

21. CAUTION: Failure to loosen the overdrive band adjusting screw prior to pump removal may cause damage to the pump and overdrive band.

CAUTION: Throw the locknuts away. The locknuts are not reusable for assembly.

Remove and discard the locknuts, and loosen the overdrive and intermediate band adjusting screw.

22. Remove and tag part for assembly.

23. CAUTION: The screws are not reusable for assembly. Discard the screws. If the screws are reused, the housing may become separated from the transmission.

Remove and discard the screws.

24. Install the special tool.

25. Using the special tools, remove the pump.

26. CAUTION: Servo cover is under spring tension.

Using the special tool, remove the intermediate servo cover retaining ring.

27. Remove the intermediate band servo piston and spring.

28. CAUTION: Servo cover is under spring tension.

Using the special tool, remove the overdrive servo cover retaining ring and cover.

29. Remove the front band servo piston and spring.

30. Remove the screw.

31. NOTE: Tag and identify parts for reassembly.

Compress the overdrive band and remove the apply strut.

32. CAUTION: Identify the anchor and apply ends of the overdrive band.

NOTE: The new overdrive band is dark in color. This is a normal condition of the band. Hairline cracks in the band are also considered normal. Do not install a new band based solely on the color.

Remove and inspect the overdrive band. Check the following conditions when installing a new band:

· Inspect for glazing.

· Inspect for missing friction material.

· Inspect for material flaking.

· Inspect for damage to the anchor pins.

33. Remove the overdrive brake and coast clutch drum.

34. CAUTION: Do not bend the trigger wheel.

NOTE: The No. 12 thrust bearing is in this assembly.

Remove the planetary gear overdrive carrier.

35. Remove the No. 2 overdrive planet thrust bearing.

36. Remove the overdrive ring gear, overdrive one-way clutch assembly and center shaft as an assembly.

37. NOTE: Tag and identify the center shaft thrust bearing No. 3 for reassembly.

Remove the No. 3 center shaft thrust bearing.

38. CAUTION: The center support locknut could fall into the remaining assembly if not removed.

Remove the bolt.

39. Remove the locknut and cage.

40. Remove the center support retaining ring.

41. NOTE: The center support is repaired as an assembly. Any damage requires installing a new component.

NOTE: When removing the center support, pull evenly around the center support web.

Remove the center support.

42. Inspect the center support assembly for wear or damage.

1. Inspect the thrust surfaces for wear or damage.

2. Inspect the center support sealing surface.

3. Inspect the fluid passage for blockage or damage.

43. Inspect the seal rings for damage.

44. Inspect the bearing for missing rollers or damage.

45. Inspect the direct clutch feed hole for blockage or damage.

1. Rotate the center support bearing to locate the direct clutch feed hole.

2. Inspect the direct clutch feed hole for blockage or damage.

46. NOTE: Tag and identify the No. 4 intermediate clutch drum thrust bearing.

Remove the intermediate brake drum thrust bearing (No. 4).

47. Remove, tag and identify the band anchor strut for assembly.

48. CAUTION: Identify the anchor and apply ends of the intermediate band.

NOTE: The new intermediate band is dark in color. This is a normal condition of the band. Hairline cracks in the band are also considered normal. Do not install a new band based solely on the color.

Remove and inspect the intermediate band. Check the following conditions when installing a new band:

· Inspect for glazing.

· Inspect for missing friction material.

· Inspect for material flaking.

· Inspect for damage to the anchor pins.

49. Remove, tag and identify the band apply strut.

50. Remove the screw.

51. NOTE: The No. 5 forward clutch cylinder thrust bearing may come out with the intermediate brake and direct clutch drum.

Remove the direct clutch drum.

52. Remove the No. 5 forward clutch cylinder thrust bearing, tag and identify.

53. NOTE: The No. 6A thrust bearing may come out with the cylinder. Tag and identify for reassembly.

Remove the forward clutch cylinder.

54. NOTE: The No. 6A forward ring gear hub thrust bearing may have come out with the forward clutch cylinder.

Remove the No. 6A forward ring gear hub thrust bearing.

55. NOTE: The No. 7 forward planet thrust bearing may come out with the forward ring gear and hub assembly.

Remove the forward ring gear and hub as an assembly.

56. Remove the No. 6B forward clutch thrust washer from the forward ring gear hub.

57. NOTE: The No. 7 forward planet thrust bearing may come out with the forward ring gear and hub assembly.

Remove the No. 7 forward planet thrust bearing.

58. Remove the forward planetary assembly.

59. Remove the input shell and sun gear assembly.

60. Remove the spacer.

61. NOTE: Tag and identify the No. 8 low/reverse planetary carrier thrust bearing.

Remove the thrust bearing.

62. Remove the retaining ring.

63. Remove the low/reverse planetary assembly.

64. NOTE: Tag and identify the No. 9 low/reverse planetary carrier thrust bearing.

Remove the thrust bearing.

65. NOTE: Use slots located around the outside of the sleeve.

Using a small pick, remove the output shaft sleeve.

66. WARNING: The output shaft may fall out after removing the snap ring. Failure to follow these instructions may result in personal injury.

CAUTION: Discard the output shaft retaining ring. A new retaining ring must be used for assembly.

While holding the output shaft, remove and discard the output shaft retaining ring.

67. Remove the output shaft ring gear and hub.

68. Remove the No. 10 low/intermediate sun gear bearing.

69. CAUTION: Do not pry on the outer edge of the case. Damage to the gasket sealing surface could occur.

NOTE: It may be necessary to grind flat spots on the edges of the reverse band actuating lever shaft in order to remove it.

Using a pair of vice grips, hold the flat spots on the reverse band actuating lever shaft, wiggle it back and forth and remove the reverse band actuating lever shaft.

70. Remove the reverse band actuating lever assembly.

71. NOTE: The inner race of the rear one-way clutch is not removable. It is repaired in the case.

Remove the low/reverse brake drum and one-way clutch assembly by rotating it clockwise.

72. NOTE: The reverse one-way clutch is part of the reverse brake drum assembly. Install a new reverse brake drum as an assembly only.

Inspect the reverse brake drum assembly and install a new reverse brake drum assembly if damaged.

1. Inspect the reverse brake drum sprags.

2. Inspect the reverse brake drum rollers.

3. Inspect the reverse brake drum.

73. Remove the reverse band.

74. Remove the output shaft and park gear.

75. NOTE: Tag and identify the No. 11 output shaft thrust washer.

Remove the output shaft thrust washer.

76. CAUTION: To avoid damage, make sure the wrench does not strike the manual valve inner lever pin.

Remove the nut.

77. Remove the manual shaft retaining pin.

78. Remove the manual control lever shaft.

79. Disconnect the manual valve inner lever from the parking lever actuating rod.

80. Remove the manual valve inner lever.

81. Remove the parking lever actuating rod.

82. CAUTION: Do not damage the bore.

Remove the manual control lever seal.

Automatic Transmission, 5R55S

Automatic Transmission, Lincoln Ls