Komatsu WF450-3, WF450T-3 Trash Compactor Shop Manual VEBM080100

Description

• Model List:
  • WF450-3 Trash Compactor
  • WF450T-3 Trash Compactor

• 1. WF4503 / WF450T3
• 2. CONTENTS
• 3. SAFETY
• 3.1. Safety notice
• 3.1.1. Preparations for work
• 3.1.2. Precautions during work
• 3.2. Foreword
• 3.3. How to read the shop manual
• 3.3.1. Volumes
• 3.3.2. Distribution and updating
• 3.3.3. Filing method
• 3.3.4. Symbols
• 3.4. Hoisting instructions
• 4. STRUCTURE AND FUNCTION
• 4.1. Power train
• 4.2. Transmission
• 4.3. Transmission solenoid valve
• 4.4. Axle
• 4.4.1. Front axle
• 4.4.2. Rear axle
• 4.5. Differential
• 4.5.1. Front differential
• 4.5.2. Rear differential
• 4.6. Final drive
• 4.7. Axle mount, center hinge pin
• 4.8. Steering piping
• 4.9. Brake piping
• 4.10. Brake
• 4.11. Parking brake
• 4.12. Hydraulic component layout
• 4.13. Work equipment lever linkage
• 4.13.1. Operation of PPC valve at neutral
• 4.13.2. Function of PPC valve
• 4.14. Cutoff valve
• 4.14.1. WF4503
• 4.14.2. Operation of cutoff valve
• 4.15. Main control valve
• 4.15.1. WF450T3
• 4.15.2. WF4503
• 4.15.3. Main relief valve
• 4.15.4. Safety valve (with suction)
• 4.15.4.1. Operation
• 4.15.5. Suction valve
• 4.15.6. Float selector valve and unload valve
• 4.15.6.1. WF4503
• 4.15.7. Operation WF450T3
• 4.15.8. Operation WF4503
• 4.16. Bucket positioner and boom kickout
• 4.16.1. WF4503
• 4.16.1.1. Operation of proximity switch
• 4.16.1.2. Operation of proximity switch
• 4.17. Air conditioner
• 4.17.1. Air conditioner piping
• 4.18. Machine monitor system
• 4.19. Main monitor
• 4.19.1. Main monitor display function
• 4.19.2. Main monitor switch function
• 4.19.3. Preheating output function
• 4.19.4. Trouble data display mode (When optional controller are installed)
• 4.20. Maintenance monitor
• 4.20.1. Maintenance monitor display function
• 4.21. Engine starting circuit
• 4.22. Engine stop circuit
• 4.23. Preheating circuit
• 4.23.1. (Automatic preheating system)
• 4.24. Electric transmission control
• 4.24.1. WF450T3
• 4.24.2. WF4503
• 4.24.3. Combination switch
• 4.25. Kickdown switch
• 4.25.1. WF4503
• 4.25.1.1. Kickdown switch
• 4.26. Kickdown electric circuit diagram
• 4.26.1. WF4503
• 4.26.1.1. Normal operation
• 4.26.1.2. Kickdown switch operated (case I)
• 4.26.1.3. Canceling actuation of kickdown switch (Case I)
• 4.26.1.4. Canceling actuation of kickdown switch (Case II)
• 4.26.1.5. Canceling actuation of kickdown switch (Case III)
• 4.27. Standard value table for engine
• 4.28. Standard value table for chassis
• 4.29. Standard value table for electrical parts
• 5. TESTING AND ADJUSTING
• 5.1. Tools for testing, adjusting, and troubleshooting
• 5.2. Testing steering wheel
• 5.2.1. Measuring play of steering wheel
• 5.2.2. Measuring operating force of steering wheel
• 5.2.3. Measuring operating time for steering wheel
• 5.3. Testing and adjusting steering control
• 5.4. Measuring steering oil pressure
• 5.5. Testing and adjusting accumulator charge pressure
• 5.6. Testing drop in wheel brake oil pressure
• 5.7. Measuring brake disc wear
• 5.8. Bleeding air from brake system
• 5.9. Measuring parking brake performance
• 5.10. Testing and adjusting work equipment hydraulic pressure
• 5.10.1. WF450T3
• 5.11. Measuring PPC hydraulic pressure
• 5.11.1. WF450T3
• 5.12. Measuring work equipment
• 5.12.1. WF450T3
• 5.13. Measuring hydraulic drift of work equipment
• 5.13.1. WF450T3
• 5.14. Adjusting main monitor (speedometer module)
• 6. TROUBLESHOOTING
• 6.1. Outline
• 7. TROUBLESHOOTING OF HYDRAULICAL AND MECHANICAL SYSTEM (H MODE)
• 7.1. Work Equipment WF450T3
• 7.1.1. H1 Blade does not rise
• 7.1.2. H2 Blade movement is slow or blade lacks lifting power
• 7.1.3. H3 When blade is raised, it moves slowly at a certain height
• 7.1.4. H4 Blade cannot be pushed with lift cylinder (blade floats)
• 7.1.5. H5 Excessive hydraulic drift of blade
• 7.1.6. H6 Blade and straight frame shake during operation
• 7.1.7. H7 Blade drops momentarily when control lever is operated from HOLD to RAISE
• 7.1.8. H8 Blade does not tilt
• 7.1.9. H9 Blade movement is slow or tilt lacks power
• 7.1.10. H10 Blade movement becomes slow during tilt operation
• 7.1.11. H11 Blade cannot be pushed with tilt cylinder
• 7.1.12. H12 Excessive hydraulic drift of blade
• 7.1.13. H13 Blade shakes during loading operation (main control valve at HOLD)
• 7.1.14. H14 Blade tilts momentarily to left when control lever is operated from HOLD to RIGHT TILT
• 7.1.15. H15 Blade control lever is heavy or does not move smoothly
• 7.2. Steering system
• 7.2.1. H16 Steering does not turn
• 7.2.2. H17 Steering wheel is heavy
• 7.2.3. H18 Steering wheel wobbles or there is excessive shock
• 7.2.4. H19 Machine steers to one side when traveling
• 7.2.5. H20 Turning radius to left and right is different
• 8. DISASSEMBLY AND ASSEMBLY
• 8.1. Special tool list
• 8.2. Removal and installation of rear axle assembly
• 8.3. Removal and installation of hydraulic pump, PPC pump assembly
• 8.3.1. WF4503
• 8.3.2. WF450T3
• 8.4. Disassembly and assembly of hydraulic cylinder assembly
• 8.4.1. WF4503
• 8.4.2. WF450T3
• 8.5. Main control valve assembly
• 8.6. Radiator, oil cooler assembly
• 8.6.1. Removal
• 8.6.2. Installation
• 8.7. Engine hood assembly
• 8.7.1. Removal
• 8.7.2. Installation
• 8.8. Lift cylinder assembly
• 8.8.1. Removal
• 8.8.2. Installation
• 8.9. Tilt cylinder assembly
• 8.9.1. Removal
• 8.9.2. Installation
• 8.10. Work equipment assembly
• 8.10.1. Removal
• 8.10.2. Installation
• 8.10.3. Assembly
• 8.11. Front axle assembly
• 8.11.1. Removal (WF4503)
• 8.11.2. Installation (WF4503)
• 8.11.3. Removal (WF450T3)
• 8.11.4. Installation (WF450T3)
• 8.12. Removal and installation of rear axle assembly
• 8.13. Front differential assembly
• 8.13.1. Removal
• 8.13.2. Installation
• 8.14. Differential Assembly
• 8.14.1. Disassembly
• 8.14.2. Assembly
• 9. MAINTENANCE STANDARD
• 9.1. Engine mount, transmission mount
• 9.2. Torque converter
• 9.3. Transmission
• 9.3.1. (1/2)
• 9.3.2. (2/2)
• 9.3.3. Forward, 1st clutch
• 9.3.4. d, reverse clutch
• 9.3.5. d, 4th clutch
• 9.4. Transmission control valve
• 9.4.1. Modulation valve assembly
• 9.4.2. Upper valve assembly
• 9.4.3. Lower valve assembly
• 9.4.4. Flow valve
• 9.4.5. Accumulator valve
• 9.5. Drive shaft
• 9.6. Differential
• 9.7. Limited slip differential
• 9.8. Final drive
• 9.9. Axle mount
• 9.10. Center hinge pin
• 9.11. Steering column
• 9.12. Steering valve
• 9.13. Steering cylinder mount
• 9.14. Torque converter, transmission pump
• 9.14.1. SAR(3) 100
• 9.15. Steering, switch pump
• 9.15.1. SAR(3)71 50
• 9.16. Hydraulic, PPC pump
• 9.16.1. WF450T3 SAR(3)80 (1) 28
• 9.16.2. WF4503 SAR(4)140 (1) 28
• 9.17. Main control valve
• 9.18. Bucket cylinder
• 9.18.1. WF4503
• 9.19. Work equipment linkage
• 9.19.1. WF450T3
• 9.19.2. WF4503
• 9.20. Bucket positioner and boom kickout
• 9.20.1. WF4503
• 10. OTHERS
• 10.1. Transmission hydraulic circuit diagram
• 10.2. Brake hydraulic circuit diagram
• 10.3. Work equipment hydraulic circuit diagram (WF450T3)
• 10.4. Work equipment hydraulic circuit diagram (WF4503)
• 10.5. Electric circuit diagram 1/4) (WF450T3)
• 10.6. Electric circuit diagram 2/4) (WF450T3)
• 10.7. Electric circuit diagram 3/4) (WF450T3)
• 10.8. Electric circuit diagram 4/4) (WF450T3)
• 10.9. Electric circuit diagram 1/4) (WF4503)
• 10.10. Electric circuit diagram 2/4) (WF4503)
• 10.11. Electric circuit diagram 3/4) (WF4503)
• 10.12. Electric circuit diagram 4/4) (WF4503)