Automatic Transmission: Overhaul Nissan Armada I

DISASSEMBLY

Scheme 220

Scheme 221

Scheme 222

Scheme 223

Scheme 224

Scheme 225

Scheme 226

Scheme 227

Scheme 228

Scheme 229

Scheme 230

Scheme 231

Scheme 232

Scheme 233

Scheme 234

Scheme 235

Scheme 236

Scheme 237

Scheme 238

Scheme 239

Scheme 240

Scheme 241

Scheme 242

Scheme 243

Scheme 244

Scheme 245

Scheme 246

Scheme 247

Scheme 248

Scheme 249

Scheme 250

Scheme 251

Scheme 252

Scheme 253

Scheme 254

Scheme 255

Scheme 256

Scheme 257

Scheme 258

Scheme 259

Scheme 260

Scheme 261

Scheme 262

Scheme 263

Scheme 264

Scheme 265

Scheme 266

Scheme 267

Scheme 268

Scheme 269

Scheme 270

Scheme 271

Scheme 272

Scheme 273

Scheme 274

Scheme 275

Scheme 276

Scheme 277

Scheme 278

Scheme 279

Scheme 280

Scheme 281

Scheme 282

Scheme 283

Scheme 284

Scheme 285

Scheme 286

Scheme 287

Scheme 288

Scheme 289

Scheme 290

Scheme 291

Scheme 292

Scheme 293

Scheme 294

Scheme 295

1. Drain ATF through drain plug.
2. Remove torque converter by holding it firmly and turning while pulling straight out.
3. Check torque converter one-way clutch using check tool as shown. Insert check tool into the groove of bearing support built into one-way clutch outer race. When fixing bearing support with check tool, rotate one- way clutch spline using screwdriver. Check that inner race rotates clockwise only. If not, replace torque converter assembly.
4. Remove converter housing from transmission case. CAUTION: Be careful not to scratch converter housing.
5. Remove O-ring from input clutch assembly.
6. Remove tightening bolts for oil pump assembly and transmission case.
7. Attach sliding hammer to oil pump assembly and extract it evenly from transmission case. CAUTION: Fully tighten sliding hammer screw. Make sure that bearing race is installed to the oil pump assembly edge surface.
8. Remove O-ring from oil pump assembly.
9. Remove bearing race from oil pump assembly.
10. Remove needle bearing from front sun gear assembly.
11. Remove front sun gear assembly from front carrier assembly. NOTE: Remove front sun gear assembly by rotating left/right.
12. Remove seal rings from input clutch assembly.
13. Remove front carrier assembly, input clutch assembly and rear internal gear as a unit. CAUTION: Be careful to remove it with needle bearing.
14. Loosen lock nut and remove band servo anchor end pin from transmission case.
15. Remove brake band from transmission case. To prevent brake linings from cracking or peeling, do not stretch the flexible band unnecessarily. When removing the brake band, always secure it with a clip as shown in the figure at left. Leave the clip in position after removing the brake band. Check brake band facing for damage, cracks, wear or burns.
16. Remove mid carrier assembly and rear carrier assembly as a unit.
17. Remove mid carrier assembly from rear carrier assembly.
18. Remove needle bearing (front side) from mid carrier assembly.
19. Remove needle bearing (rear side) from mid carrier assembly.
20. Remove bearing race from rear carrier assembly.
21. Remove needle bearing from rear carrier assembly.
22. Remove mid sun gear assembly, rear sun gear assembly and high and low reverse clutch hub as a unit. CAUTION: Be careful to remove then with bearing races and needle bearing.
23. Remove high and low reverse clutch assembly from direct clutch assembly. CAUTION: Make sure that needle bearing is installed to the high and low reverse clutch assembly edge surface.
24. Remove direct clutch assembly from reverse brake.
25. Remove needle bearing from drum support edge surface.
26. Remove snap ring from A/T assembly harness connector.
27. Push A/T assembly harness connector. CAUTION: Be careful not to damage connector.
28. Remove oil pan and oil pan gasket, refer to «REMOVAL»(ref-233274-S34849123152006052500000) .
29. Disconnect A/T fluid temperature sensor 2 connector. CAUTION: Be careful not to damage connector.
30. Straighten terminal clip to free terminal cord assembly and A/T fluid temperature sensor 2 harness.
31. Disconnect revolution sensor connector. CAUTION: Be careful not to damage connector.
32. Straighten terminal clips to free revolution sensor harness.
33. Remove bolts A, B and C from control valve with TCM. BOLTS SPECIFICATIONS Bolt symbol Length mm (in) Number of bolts A 42 (1.65) 5 B 55 (2.17) 6 C 40 (1.57) 1
34. Remove control valve with TCM from transmission case. CAUTION: When removing, be careful with transmission assembly terminal connector and the manual valve notch and manual plate height. Remove it vertically.
35. Remove A/T fluid temperature sensor 2 with bracket from control valve with TCM.
36. Remove bracket from A/T fluid temperature sensor 2.
37. Remove O-ring from A/T assembly harness connector.
38. Disconnect TCM connectors. CAUTION: Be careful not to damage connectors.
39. Remove A/T assembly harness connector from control valve with TCM using flat blade screwdriver.
40. Disconnect TCM connector and park/neutral position switch connector. CAUTION: Be careful not to damage connectors.
41. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the following procedures. 2WD models Remove tightening bolts for rear extension assembly and transmission case. Remove bracket. Tap rear extension assembly with soft hammer. Remove rear extension assembly from transmission case. (With needle bearing) 4WD models Remove tightening bolts for adapter case assembly and transmission case. Remove bracket. Tap adapter case assembly with soft hammer. Remove adapter case assembly from transmission case. (With needle bearing) Remove gasket from transmission case.
42. Remove bearing race from output shaft.
43. Remove output shaft from transmission case by rotating left/right.
44. Remove parking gear from output shaft.
45. Remove seal rings from output shaft.
46. Remove needle bearing from transmission case.
47. Remove revolution sensor from transmission case. CAUTION: Do not subject it to impact by dropping or hitting it. Be careful not to damage harness with the edge of case. Do not allow metal filings, etc., to get on the sensor's front edge magnetic area. Do not place in an area affected by magnetism.
48. Remove reverse brake snap ring (fixing plate) using 2 flat-bladed screwdrivers. NOTE: Press out snap ring from the transmission case oil pan side gap using a flat- bladed screwdriver, and remove it using another screwdriver.
49. Remove reverse brake retaining plate from transmission case.
50. Remove N-spring from transmission case.
51. Remove reverse brake drive plates, driven plates and dish plate from transmission case.
52. Remove snap ring (fixing spring retainer) from transmission case while compressing return spring, using Tool. Tool number: KV31102400 (J-34285 and J-34285-87)
53. Remove spring retainer and return spring from transmission case.
54. Remove seal rings from drum support.
55. Remove needle bearing from drum support edge surface.
56. Remove reverse brake piston from transmission case with compressed air. Refer to «OIL CHANNEL»(ref-233274-S02930828772006052500000) . CAUTION: Care should be taken not to abruptly blow air. It makes pistons incline, as the result, it becomes hard to disassemble the pistons.
57. Remove D-rings from reverse brake piston.
58. Use a pin punch (4 mm dia. Commercial service tool) to knock out retaining pin.
59. Remove manual shaft retaining pin with pliers.
60. Remove manual plate (with parking rod) from manual shaft.
61. Remove parking rod from manual plate.
62. Remove manual shaft from transmission case.
63. Remove manual shaft oil seals using a flat-bladed screwdriver. CAUTION: Be careful not to scratch transmission case.
64. Remove detent spring and spacer from transmission case.
65. Remove snap ring from transmission case, using suitable tool.
66. Remove servo assembly (with return spring) from transmission case.
67. Remove return spring from servo assembly.
68. Remove O-rings from servo assembly.
69. Remove parking actuator support from rear extension (2WD models) or adapter case (4WD models).
70. Remove parking pawl (with return spring) and pawl shaft from rear extension (2WD models) or adapter case (4WD models).
71. Remove return spring from parking pawl.
72. Remove needle bearing from rear extension (2WD models) or adapter case (4WD models).
73. Remove rear oil seal from rear extension (2WD models) or adapter case (4WD models). CAUTION: Be careful not to scratch rear extension (2WD models) or adapter case (4WD models).

Scheme 296

Scheme 297

Scheme 298

Scheme 299

Scheme 300

1. Remove oil pump housing from oil pump cover.
2. Remove oil pump housing oil seal using a flat-bladed screwdriver. CAUTION: Be careful not to scratch oil pump housing.
3. Remove O-ring from oil pump housing.
4. Remove O-ring from oil pump cover.

Scheme 301

Scheme 302

Scheme 303

Scheme 304

1. Install new O-ring to oil pump cover. CAUTION: Do not reuse O-ring. Apply ATF to O-ring.
2. Install new O-ring to oil pump housing. CAUTION: Do not reuse O-ring. Apply ATF to O-ring.
3. Install oil pump housing oil seal to the oil pump housing until it is flush with the face of oil pump housing, using Tool. CAUTION: Do not reuse oil seal. Apply ATF to oil seal. Tool number: ST33400001 (J-26082)
4. Install oil pump housing in oil pump cover. Tighten oil pump housing bolt to the specified torque. Refer to «COMPONENTS»(ref-233274-S04374539092006091900000)

Scheme 305

Scheme 306

Scheme 307

1. Using a flat-bladed screwdriver, remove snap ring from front sun gear.
2. Remove 3rd one-way clutch from front sun gear.

FRONT CARRIER ASSEMBLY

1. Check for deformation, fatigue or damage. CAUTION: If necessary, replace the front carrier assembly.