Cub Cadet 8404 Service Manual Page 122
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- Table of contents
- TROUBLESHOOTING
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CHAPTER 4 8354/8404
4-18
D615-W02 May-2003
615W433A
(1) Differential Locking Fork Shaft
(2) Differential Locking Fork
(3) Differential Locking Shift
(4) Differential Gear Case
(5) Differential Side Gear (Left)
(6) Differential Side Gear (Right)
(7) Differential Pinion
(8) Spiral Bevel Gear
C. Differential Lock
• When the resistance of the right and left tires varies
from the ground or work conditions, it could cause
the wheels to slip and one wheel will be rotating
faster than the other. Therefore, towing power will
be decreased. To compensate for this, the differen-
tial locking device restricts differential function and
provides equal rpm’s to both wheels.
• If working the differential locking pedal, differential
locking fork shaft (1) will rotate and the differential
locking fork (2) will moved to differential side gear
(5) with differential locking shift (3), pin of shift en-
tered groove of side gear to lock side gear. Rotation
of spiral bevel gear (8) will be transmitted to both
wheels to move tractors forward.
• If stopping differential locking pedal, differential lock-
ing shift (3) will be removed from side gear by the
return spring of the differential locking pedal to re-
lease locking and to return differential function.
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- CONTENTS 3
- 1. TRACTOR VIEW 11
- 2.1 TIGHTENING TORQUE 12
- GENERAL INFORMATION 13
- 3. SPECIFICATIONS 14
- 4. IDENTIFICATION 16
- 5. CAUTION BEFORE REPAIR 17
- 5.6 ELECTRICAL SYSTEM 18
- 5.5 ASBESTOS PARTS 18
- 6. REGULAR CHECK LIST 20
- ENGINE SYSTEM 23
- 1. GENERAL 25
- 1.2 SPECIFICATIONS 26
- 1.3 PERFORMANCE CURVE 27
- 1.4 DIMENSIONS 28
- 1.5. GENERAL WARNING 28
- 2. STRUCTURE AND FUNCTION 29
- CHAPTER 2 8354/8404 30
- 2.2 LUBRICATING SYSTEM 33
- 2.3 COOLING SYSTEM 35
- 2.4 FUEL SYSTEM 37
- 4) To stop engine 43
- 3.1 TROUBLESHOOTING 45
- 3.2 SERVICING SPECIFICATIONS 48
- I. Timing Gear 50
- 1) Fan belt 57
- 1) Engine body 57
- 1) Compression pressure 59
- 2) Valve clearance 60
- 1) Timing Gears and Camshafts 63
- (A) Injection pump 63
- (E) Gear case 64
- (C) Start spring 64
- (D) Fan drive pulley 64
- (G) Idle gear and crank gear 65
- 2) Connecting rod and piston 66
- 12 13111078210 65439 71
- 2) Timing gears and camshafts 73
- 4) Crankshaft 78
- 5) Cylinder bore 81
- 2) Injection nozzle 88
- 1) Injection pump 88
- CHAPTER 3 89
- 1. DISASSEMBLY AND ASSEMBLY 91
- 615W302A 615W303A 615W304A 92
- B. SECOND STAGE 92
- 615W305A 92
- C. THIRD STAGE 93
- 2. CLUTCH 96
- 615W320A 97
- 2.3 TROUBLESHOOTING 98
- 2.4 SPECIFICATION 99
- 2.5 TIGHTENING TORQUE 99
- 2.6 DISASSEMBLY, MAINTENANCE 100
- B. DISASSEMBLY, ASSEMBLY 101
- CHAPTER 3 8354/8404 102
- 615W329A 103
- TRANSMISSION 105
- 1. STRUCTURE 107
- 2. POWER TRANSMISSION 108
- Intermediate Stage 109
- B. Synchro Operation 109
- 1st Stage 109
- Final Stage 110
- Reversing 111
- Power Transmission Flow Chart 111
- Low Speed 112
- High Speed 112
- Power Transmission Flow 112
- A. Power Transmission Flow 114
- CHAPTER 4 8354/8404 116
- 4. PTO CLUTCH 118
- 5. DIFFERENTIAL GEAR 120
- B. Turning a Corner 121
- C. Differential Lock 122
- 6. TROUBLESHOOTING 123
- 7. MAINTENANCE SPECIFICATION 124
- 8. TIGHTENING TORQUE 125
- 9. CLUTCH HOUSING 126
- 11. INTERMEDIATE CASE 141
- Case and Transmission Case) 142
- 12.1 DISASSEMBLY, ASSEMBLY 150
- 12. TRANSMISSION CASE 150
- 615W483A 152
- 615W485A 152
- Pinion Shaft) 154
- D615-W02 May-2003 156
- 12.2 MAINTENANCE 160
- REAR AXLE 165
- 2. TIGHTENING TORQUE 168
- 3. SERVICE SPECIFICATION 169
- 4. DISASSEMBLY, ASSEMBLY 170
- CHAPTER 5 8354/8404 172
- 5. MAINTENANCE 173
- CHAPTER 6 175
- Operational Principle 178
- 3. TROUBLESHOOTING 179
- 4. MAINTENANCE SPECIFICATION 180
- 5. TIGHTENING TORQUE 180
- 6. BRAKE PEDAL 181
- CHAPTER 6 8354/8404 182
- 7. BRAKE CASE 183
- B. Brake Case Disassembly 185
- D. Wear Check of Brake Disc 187
- B. Wear Check of Cam Plate 187
- E. Wear Check of Brake Plate 187
- FRONT AXLE 189
- 2. WHEEL ALIGNMENT 192
- 6.1 CHECK AND ADJUSTMENT 196
- 6. DISASSEMBLY, MAINTENANCE 196
- Rocking Force) 197
- IMPORTANT: 198
- Assembly) 199
- Cylinder Hydraulic Hose) 199
- 8. DISASSEMBLY OF FRONT AXLE 200
- A. DX Bush Assembling Method 201
- CHAPTER 7 8354/8404 202
- 9. MAINTENANCE 206
- A. Types of Adjusting Shim 210
- B. Tooth Contacted Check 210
- STEERING SYSTEM 211
- 1. CHARACTERISTICS 213
- CHAPTER 8 8354/8404 214
- 3. GEAR PUMP 215
- 615W805A 216
- A. Control Valve 217
- B. Metering Device 217
- 5. STEERING CYLINDER 218
- 6. OIL FLOW 219
- 7. TROUBLESHOOTING 221
- 8. DISASSEMBLY, MAINTENANCE 222
- 615W828A 229
- 615W829A 229
- A. Check 231
- HYDRAULIC SYSTEM 235
- 1. HYDRAULIC CIRCUIT DIAGRAM 237
- 2. STRUCTURE 238
- 4. HYDRAULIC PUMP 240
- 5. OIL FILTER 241
- 6. CONTROL VALVE (MLS VALVE) 242
- A. Neutral Phase 243
- B. Delivery Phase 244
- C. Discharge Phase 245
- CHAPTER 9 8354/8404 246
- 8. HYDRAULIC CYLINDER 247
- 9. STRUCTURE AND OPERATION 248
- A. Position Control 249
- (Fig. 225W918A,225W919A) 250
- (Fig. 615W918A,615W919A) 251
- A. Operation principle 253
- B. Circuit diagram 253
- 11. TOP LINK BRACKET DEVICE 254
- 12. TROUBLESHOOTING 255
- 13. MAINTENANCE SPECIFICATION 256
- 14. TIGHTENING TORQUE 258
- 15. DISASSEMBLY, ASSEMBLY 259
- A. DISASSEMBLY, ASSEMBLY 261
- E. Lever Position Setting 270
- ELECTRIC SYSTEM 273
- 1. ELECTRONIC INSTRUMENTATION 275
- CHAPTER 10 8354/8404 276
- ELECTRICAL SYSTEM 277
- 2. TROUBLE SHOOTING 278
- 3. SERVICING SPECIFICATIONS 280
- 4. MECHANISM 281
- 4.2 CHARGING SYSTEM 284
- 4.3 PREHEATING SYSTEM 286
- 4.4 FUSE 287
- 4.5 GAUGE AND SENSORS 288
- 5. MAIN CIRCUIT DIAGRAM 289
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