Cub Cadet 8454 Service Manual

Cub Cadet 8454 Service Manual



Cub Cadet 8454 Service Manual

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Cub Cadet 8454 Service Manual

 

CHAPTER 1. GENERAL INFORMATION ........................................................................................1-1
1. TRACTOR VIEW.............................................................................................................................................. 1-3
2. TIGHTENING TORQUE FOR STANDARD BOLTS AND NUTS ................................................................. 1-4
2.1 TIGHTENING TORQUE ........................................................................................................................ 1-4
3. SPECIFICATIONS ........................................................................................................................................... 1-6
4. IDENTIFICATIONS .......................................................................................................................................... 1-8
4.1 ENGINE NUMBER ............................................................................................................................... 1-8
4.2 SERIAL NUMBER OF THE TRACTOR ............................................................................................... 1-8
5. CAUTION BEFORE REPAIR .......................................................................................................................... 1-9
5.1 BEFORE REPAIR OR INSPECTION .................................................................................................. 1-9
5.2 ASSEMBLY AND DISASSEMBLY ......................................................................................................... 1-9
5.3 PARTS TO BE REPLACED .................................................................................................................. 1-9
5.4 PARTS.................................................................................................................................................... 1-9
5.5 ASBESTOS PARTS ............................................................................................................................. 1-10
5.6 ELECTRICAL SYSTEM....................................................................................................................... 1-10
5.7 TUBES AND RUBBERS ..................................................................................................................... 1-11
5.8 LUBRICANT ........................................................................................................................................ 1-11
6. REGULAR CHECK LIST.............................................................................................................................. 1-12
7. OIL & WATER SUPPLY LIST ........................................................................................................................ 1-13
CHAPTER 2. ENGINE ........................................................................................................................2-1
1. GENERAL ........................................................................................................................................................ 2-3
1.1 APPEARANCE ...................................................................................................................................... 2-3
1.2 SPECIFICATIONS ................................................................................................................................ 2-4
1.3 PERFORMANCE CURVE ..................................................................................................................... 2-5
1.4 DIMENSIONS........................................................................................................................................ 2-6
1.5 GENERAL WARNING ........................................................................................................................... 2-6
2. STRUCTURE AND FUNCTION ..................................................................................................................... 2-7
2.1 BODY ..................................................................................................................................................... 2-7
2.2 LUBRICATION SYSTEM ..................................................................................................................... 2-11
2.3 COOLING SYSTEM ............................................................................................................................. 2-13
2.4 FUEL SYSTEM.................................................................................................................................... 2-15
2.5 INTAKE AND EXHAUST SYSTEM...................................................................................................... 2-22
3. DISASSEMBLING AND SERVICING .......................................................................................................... 2-24
3.1 TROUBLIE SHOOTING...................................................................................................................... 2-24
3.2 SERVICING SPECIFICATIONS ......................................................................................................... 2-27
3.3 CHECKING, DISASSEMBLING AND SERVICING .......................................................................... 2-33
CHAPTER 3. CLUTCH .......................................................................................................................3-1
1. TROUBLE SHOOTING................................................................................................................................... 3-3
2. SPECIFICATIONS,TIGHTENING TORQUES AND SPECIAL TOOLS ...................................................... 3-4
2.1 SPECIFICATIONS ................................................................................................................................ 3-4
2.2 TIGHTENING TORQUES ..................................................................................................................... 3-4
2.3 SPECIAL TOOLS.................................................................................................................................. 3-4
3. STRUCTURE AND OPERATION ................................................................................................................... 3-5
3.1 FEATURES ............................................................................................................................................ 3-5
3.2 STRUCTURE........................................................................................................................................ 3-5
3.3 OPERATION .......................................................................................................................................... 3-6
4. PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING ........................................................ 3-7
4.1 SEPARATING PANEL FRAME ASSEMBLY ......................................................................................... 3-7
4.2 SEPARATING ENGINE AND CLUTCH HOUSING CASE................................................................. 3-9
4.3 DISASSEMBLY.................................................................................................................................... 3-10
5. ADJUSTMENT OF PEDALS ......................................................................................................................... 3-11
5.1 DEFLECTION OF CLUTCH PEDAL ................................................................................................. 3-11
5.2 CLEARANCE BETWEEN SAFETY STARTING SWITCH AND LINK............................................. 3-11
6. INSPECTION AND REPAIR .......................................................................................................................... 3-12
6.1 WEAR AND DAMAGE ON CLUTCH DISC ....................................................................................... 3-12
6.2 CLEARANCE BETWEEN SPLINE BOSS OF THE CLUTCH DISC AND
SHUTTLE SHAFT SPLINES .............................................................................................................. 3-12
6.3 FLATNESS OF CLUTCH PRESSURE PLATE, DAMAGES ............................................................ 3-13
6.4 DAMAGES TO FLYWHEEL, ADJUSTMENT OF RELEASE BEARING .......................................... 3-13
6.5 WEAR OR DAMAGES ON RELEASE BEARING, RELEASE FORK AND RELEASE HUB ........ 3-13
6.6 CLEARANCE BETWEEN CLUTCH PEDAL SHAFT AND CLUTCH PEDAL BUSHING ............ 3-14
CHAPTER 4. TRANSMISSION SYSTEM ........................................................................................4-1
1. TROUBLESHOOTING .................................................................................................................................... 4-3
1.1 TROUBLESHOOTING FOR SHUTTLE SHIFT IN OPERATION ERROR ...................................... 4-3
1.2 TROUBLESHOOTING FOR MAIN SHIFTS IN OPERATION ERROR ............................................ 4-3
1.3 TROUBLESHOOTING FOR AUXILIARY AND CREEP SHIFTS IN OPERATION ERROR ........... 4-4
1.4 TROUBLESHOOTING FOR REAR DIFFERENTIAL GEAR IN OPERATION ERROR ................. 4-4
1.5 TROUBLESHOOTING FOR REAR DIFFERENTIAL IN OPERATION ERROR ............................. 4-4
1.6 TROUBLESHOOTING FOR FRONT WHEEL DRIVE IN OPERATION ERROR ........................... 4-5
1.7 TROUBLESHOOTING FOR PTO CLUTCH IN OPERATION ERROR ........................................... 4-5
1.8 TROUBLESHOOTING FOR PTO IN OPERATION ERROR............................................................. 4-5
1.9 TROUBLESHOOTING FOR PARKING BRAKE IN OPERATION ERROR...................................... 4-5
2. SPECIFICATIONS ........................................................................................................................................... 4-6
2.1 TIGHTENING TORQUES ..................................................................................................................... 4-6
3. STRUCTURE .................................................................................................................................................. 4-7
3.1 POWER TRAIN DIAGRAM .................................................................................................................... 4-7
3.2 STRUCTURE........................................................................................................................................ 4-8
3.3 POWER TRAIN ..................................................................................................................................... 4-9
3.3.1 TRANSMISSION........................................................................................................................ 4-9
3.3.2 SHUTTLE SHIFT SECTION ................................................................................................... 4-10
3.3.3 MAIN SHIFT .............................................................................................................................. 4-11
3.3.4 AUXILIARY SHIFT .................................................................................................................... 4-12
3.3.5 FRONT WHEEL DRIVE........................................................................................................... 4-12
3.3.6 PTO SHIFT............................................................................................................................... 4-13
3.4 OPERATION ........................................................................................................................................ 4-14
3.4.1 FEATURES................................................................................................................................ 4-14
4. PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING TRANSMISSION........................ 4-22
4.1 DRAINING THE TRANSMISSION FLUID......................................................................................... 4-22
4.2 SEPARATING PANEL FRAME ASSEMBLY ....................................................................................... 4-23
4.3 SEPARATING REAR FENDERS AND PLATFORM ASSEMBLY ..................................................... 4-25
5. TO DISMANTLE AND TO ASSEMBLE ......................................................................................................... 4-28
5.1 STANDARD TABLE FOR REPAIR ..................................................................................................... 4-28
5.2 TO DISMANTLE AND TO ASSEMBLE............................................................................................... 4-28
6. DIFFERENTIAL GEAR .................................................................................................................................. 4-55
6.1 STRUCTURE...................................................................................................................................... 4-55
6.2 OPERATION ........................................................................................................................................ 4-56
6.3 LOCKING OF THE DIFFERENTIAL GEAR ...................................................................................... 4-57
CHAPTER 5. FRONT AXLE ...............................................................................................................5-1
1. TROUBLESHOOTING.................................................................................................................................... 5-3
2. SPECIFICATIONS ........................................................................................................................................... 5-4
3. STRUCTURE .................................................................................................................................................. 5-6
3.1 OPERATION .......................................................................................................................................... 5-6
3.2 FRONT WHEEL ALIGNMENT .............................................................................................................. 5-7
3.3 TOE-IN ADJUSTMENT......................................................................................................................... 5-8
3.4 DIRECTION CONTROL ANGLE FOR THE FRONT WHEEL .......................................................... 5-8
3.5 ROCKING FORCE OF THE FRONT AXLE, DEFLECTION IN FRONT & REAR DIRECTIONS.. 5-9
4. PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING...................................................... 5-10
4.1 SEPARATING FRONT AXLE.............................................................................................................. 5-10
5. TO DISMANTLE AND TO ASSEMBLE ......................................................................................................... 5-12
5.1 FRONT AXLE CASE AND FRONT AXLE ........................................................................................... 5-12
5.2 BEVEL GEAR CASE AND FRONT AXLE CASE .............................................................................. 5-13
5.3 BEVEL GEAR CASE AND FRONT AXLE SUPPORT ...................................................................... 5-14
5.4 FRONT AXLE SUPPORT AND DIFFERENTIAL GEAR CASE ....................................................... 5-15
5.5 FRONT DIFFERENTIAL GEAR ......................................................................................................... 5-16
5.6 FRONT BRACKET .............................................................................................................................. 5-19
5.7 REAR BRACKET ................................................................................................................................ 5-20
CHAPTER 6. HYDRAULIC SYSTEMS.............................................................................................6-1
1. HYDRAULIC LIFT SYSTEM ............................................................................................................................ 6-3
1.1 TROUBLE SHOOTING ......................................................................................................................... 6-5
1.2 SPECIFICATIONS ................................................................................................................................ 6-6
1.3 STRUCTURE AND OPERATION ......................................................................................................... 6-9
1.4 PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING ........................................... 6-25
1.5 DISMANTLE AND ASSEMBLING ....................................................................................................... 6-27
2. PTO CLUTCH VALVE SYSTEM .................................................................................................................. 6-38
2.1 SPECIFICATIONS AND DIAGRAM .................................................................................................... 6-38
2.2 STRUCTURE AND OPERATION ....................................................................................................... 6-39
2.3 ASSEMBLING AND DISASSEMBLING ............................................................................................. 6-44
2.4 TO CHECK AND TO REPAIR............................................................................................................. 6-46
3. POWER STEERING SYSTEM ...................................................................................................................... 6-47
3.1 TROUBLE SHOOTING........................................................................................................................ 6-47
3.2 INTRODUCTION ................................................................................................................................ 6-48
3.3 STRUCTURE AND OPERATION ....................................................................................................... 6-50
3.4 PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING ........................................... 6-55
3.5 TO DISMANTLE AND TO ASSEMBLE............................................................................................... 6-58
4. HYDRAULIC PUMP ...................................................................................................................................... 6-66
4.1 TROUBLESHOOTING ........................................................................................................................ 6-66
4.2 SPECIFICATIONS ............................................................................................................................... 6-66
4.3 STRUCTURE AND OPERATION ....................................................................................................... 6-67
4.4 TO DISMANTLE AND TO ASSEMBLE............................................................................................... 6-69
5. HYDRAULIC FILTER .................................................................................................................................... 6-71
5.1 STRUCTURE AND OPERATION ....................................................................................................... 6-71
6. HYDRAULIC PRESSURE OPERATION PRINCIPLE AND TROUBLE SHOOTING ............................. 6-73
6.1 COMPOSITION OF HYDRAULIC DEVICE & FLOW DIAGRAM OF HYDRAULIC OIL ................ 6-73
6.2 STEERING DEVICES ......................................................................................................................... 6-75
6.3 PTO SYSTEM ...................................................................................................................................... 6-77
6.4 HYDRAULIC PRESSURE RISE & FALL DEVICE........................................................................... 6-79
CHAPTER 7. BRAKE..........................................................................................................................7-1
1. TROUBLESHOOTING .................................................................................................................................... 7-3
2. SPECIFICATIONS ........................................................................................................................................... 7-3
3. TIGHTENING TORQUE ................................................................................................................................. 7-4
4. STRUCTURE AND OPERATION ................................................................................................................... 7-5
4.1 STRUCTURE........................................................................................................................................ 7-5
4.2 OPERATION .......................................................................................................................................... 7-7
5. DISASSEMBLING AND ASSEMBLING .......................................................................................................... 7-8
5.1 DRAINING THE TRANSMISSION FLUID ........................................................................................... 7-8
5.2 SEPARATING PANEL FRAME ASSEMBLY ......................................................................................... 7-9
5.3 SEPARATING REAR FENDERS AND PLATFORM ASSEMBLY ..................................................... 7-11
5.4 DISASSEMBLING REAR AXLE CASE .............................................................................................. 7-14
5.5 DISASSEMBLING BRAKE CASE ...................................................................................................... 7-15
6. ADJUSTMENT OF THE BRAKE ................................................................................................................... 7-16
7. SERVICING ................................................................................................................................................... 7-17
CHAPTER 8 ELECTRIC SYSTEM ....................................................................................................8-1
1. ELECTRONIC INSTRUMENTATION ............................................................................................................. 8-3
1.1 INSTRUMENT GAUGE........................................................................................................................... 8-3
1.2 INDICATORS AND WARNING LIGHTS................................................................................................. 8-4
2. TROUBEL SHOOTING................................................................................................................................... 8-6
3. SERVICING SPECIFICATIONS ..................................................................................................................... 8-8
4. MECHANISM .................................................................................................................................................... 8-9
4.1 STARTING SYSTEM ............................................................................................................................... 8-9
4.2 CHARGING SYSTEM............................................................................................................................ 8-12
4.3 PREHEATING SYSTEM ......................................................................................................................... 8-14
4.4 FUSE ...................................................................................................................................................... 8-15
4.5 GAUGE AND SENSORS ....................................................................................................................... 8-16
CHAPTER 9. CABIN SYSTEM .........................................................................................................9-1
1. DISASSEMBLY AND ASSEMBLY.................................................................................................................... 9-3
2. HEATER ........................................................................................................................................................... 9-8
2.1 STRUCTURE ........................................................................................................................................ 9-8
2.2 DISASSEMBLY AND ASSEMBLY ......................................................................................................... 9-8
2.3 HEATER OPERATION DEVICE ........................................................................................................... 9-8
3. AIR CONDITIONER ........................................................................................................................................ 9-9
3.1 AIR CONDITIONER .............................................................................................................................. 9-9
3.2 TROUBLE SHOOTING ....................................................................................................................... 9-13