Komatsu PC4000 Hydraulic Excavator Service Manual

Description

• Model List:
  • PC4000 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. SAFTEY
• 4. FOREWORD
• 4.1. HOISTING INSTRUCTIONS
• 4.2. STANDARD TIGHTENING TORQUE
• 4.3. CONVERSION TABLE
• 5. Main Assembly Groups
• 5.1. General lay out
• 5.1.1. Superstructure
• 5.1.1.1. Machine house
• 5.1.1.2. Hydraulic Oil Reservoir
• 5.1.1.3. Hydraulic Oil Cooler
• 5.1.1.4. Fuel tank (Fuel reservoir)
• 5.1.1.5. Counter weight
• 5.1.1.6. Cab support
• 5.1.1.7. Operators cab
• 5.1.1.8. Control blocks
• 5.1.1.9. Swing gears
• 5.1.2. Under carriage
• 5.1.3. Attachment
• 5.1.3.1. Backhoe attachment (BHA)
• 5.1.3.2. Front Shovel Attachment (FSA)
• 6. Drive
• 6.1. Prime drive assembly
• 6.1.1. Engine and PTO mounts
• 6.1.2. Coupling
• 6.1.3. Air Filter
• 6.1.4. Fan drive and radiator assembly
• 6.1.5. Radiator fan drive speed adjustment
• 6.1.6. Pump distributor gearbox (PTO)
• 6.1.7. Pumpspline lubrication
• 6.1.8. PTO Lubrication and cooling
• 6.1.9. Hydraulic pumps location, drive speed and flow rates
• 7. Hydraulic Oil Reservoir
• 7.1. General lay out
• 7.1.1. Main oil tank, location of switches, sensors etc.
• 7.1.2. Suction oil tank with strainers
• 7.1.3. Return oil collector tube with strainer
• 7.1.4. Back pressure valve
• 7.1.5. Transfer pump (Optional Equipment)
• 7.1.6. Return and Leak Oil Filter
• 7.1.7. Breather filter
• 8. Hydraulic Oil Cooling
• 9. Controlling
• 10. Components
• 11. Main Hydraulic Pumps and Pump Regulation System
• 12. Lubrication Systems