Liebherr R920 Compact Hydraulic Excavator Operators Service Repair Manual

Table of Content – Liebherr R920 Compact Hydraulic Excavator Type 1705 Manual

• Service manual
• Preface
• Contents
• 010 Introduction
  • 010.010 Additions and updates in the service manual
  • 010.020 Safety warnings
  • 010.025 Standards and regulations
  • 010.050 Special tool
  • 010.060 Conservation guidelines
  • 010.080 Material weights
• 020 Technical data
  • 020.005 Technical data
• 030 Maintenance
  • 030.001 Maintenance
  • 030.030 Emergency operations
  • 030.052 Adjustment checklist R920 Compact
  • 030.100 Preparations
  • 030.105 Machine-specific data
  • 030.110 Diesel engine
  • 030.115 Operating conditions
  • 030.120 Servo control
  • 030.126 Variable-displacement pump
  • 030.131 Pump safety valve
  • 030.136 Powertest
  • 030.142 Control block, secondary pressures
  • 030.146 Pressure cut-off valve for operating pressure
  • 030.151 Slewing gear function
  • 030.155 Hydraulic fan drive
  • 030.161 Travel function
  • 030.175 Tool Control high pressure circuit 1
  • 030.205 Stabiliser blade
• 040 Drive group
  • 040.010 Technical data, diesel engine
  • 040.021 Diesel engine D924 A7
  • 040.022 Diesel engine TCD 3.6 L4
  • 040.026 SCR exhaust treatment system
  • 040.027 SCR exhaust gas treatment system
  • 040.031 Diesel exhaust fluid system
  • 040.036 Fuel system
  • 040.041 Air filter system
  • 040.051 SCRF exhaust treatment system
  • 040.060 Coupling
• 050 Cooling system
  • 050.004 Coolant circuit
  • 050.010 Cooling unit
  • 050.020 Fan drive
  • 050.030 Reversible fan drive
• 060 Working hydraulics
  • 060.001 Overview of hydraulic symbols
  • 060.002 Colour code of hydraulic schematics
  • 060.003 Reducing pressure in hydraulic system
  • 060.004 Bleeding hydraulic system
  • 060.008 LSC system
  • 060.020 Design of hydraulic system
  • 060.075 Hydraulic diagram R918, R920 Compact
• 070 Travel hydraulics
  • 070.006 Travel hydraulics: overview
  • 070.020 CMVE travel motor
• 080 Hydraulic components
  • 080.015 Hydraulic tank
  • 080.021 DPVO variable-displacement pump
  • 080.041 Control oil unit
  • 080.044 Pilot control unit / joystick
  • 080.047 Pilot control unit 4x for travel drive
  • 080.050 LSC control block
  • 080.054 Control axis / slewing gear
  • 080.055 Turning grapple
  • 080.056 Auxiliary control axis, hydraulic two-piece boom
  • 080.057 Auxiliary control axis, high pressure circuit 1 (HDK1)
  • 080.058 Servo control valves
  • 080.059 Check for leak oil at control blocks
  • 080.070 Slewing gear motor
  • 080.077 Rotary connection 6x
  • 080.080 Hydraulic differential cylinder
  • 080.090 Accumulator
  • 080.100 Line break safety valve
  • 080.105 Line break safety valve, stick cylinder
• 110 Electrical system
  • 110.001 Overview of electrical symbols
  • 110.002 Circuit diagrams in LIDOS
  • 110.005 Overview of ground points
  • 110.022 Electrical system: operator's platform, crawler
  • 110.030 Electrical system: uppercarriage
  • 110.050 Circuit diagram: operator's platform
  • 110.060 Circuit diagram: basic machine
  • 110.080 Circuit diagram of D924 A7 diesel engine
  • 110.100 Circuit diagram: Joystick SVAB
• 120 Travel gearbox
  • 120.005 List of travel gearboxes
  • 120.010 Travel gearbox – line P(c)
• 130 Travel gear
  • 130.100 Arrangement of track components
  • 130.260 List of the track components
  • 130.410 Wear limits for the track components
  • 130.500 Track complete
  • 130.530 Repair of a track
  • 130.600 Tension unit complete
  • 130.630 Idler-wheel
  • 130.650 Grease tensioner
  • 130.700 Monoblock tensioner
  • 130.750 Preassembled spring tensioner
  • 130.800 Track roller
  • 130.850 Carrier roller supported on one side
  • 130.900 Face seals
• 140 Steel parts of the basic machine
  • 140.010 Repair welding guideline
• 150 Working attachment
  • 150.010 Dismantling and installing working attachment
  • 150.015 Boom, adjustable in vertical/horizontal direction
  • 150.019 Stick cylinder shut-off
  • 150.020 Height limitation
  • 150.038 Stabiliser blade
  • 150.040 Hydraulic quick coupler
  • 150.042 Interface, third-party quick coupler
  • 150.061 Manual changeover between bucket and grapple operation
  • 150.062 Changeover between two-piece boom and high pressure circuit
  • 150.063 Changeover between high pressure circuit 1 and bucket cylinder
• 160 Cab, heating and air conditioning
  • 160.020 Auxiliary heater
  • 160.035 Heating and air conditioning unit
  • 160.040 Air conditioning
  • 160.045 Air conditioning diagnosis / service
• 170 Lubrication system
  • 170.001 Repair of lubrication hose
  • 170.005 Automatic central lubrication system
  • 170.015 Central lubrication pump
  • 170.025 Progressive distributor
• 180 Slewing gearbox and slewing ring
  • 180.020 Slewing gearbox
  • 180.030 Slewing brake
  • 180.032 Positioning slewing brake
  • 180.050 Slewing ring
• 190 Equipment and options
  • 190.001 LIDAT remote diagnosis system (LiTU2)
  • 190.002 LiDAT: checking connection status
  • 190.004 LiDAT remote diagnosis system (LiTU03)
  • 190.005 LiDAT: creating a report and snapshot
  • 190.007 Likufix coupling system
  • 190.008 Check template for LIKUFIX
  • 190.009 Avertisseur de surcharge
  • 190.010 Tool control
  • 190.014 Tool Management
  • 190.015 Protection des vérins de flèche
  • 190.022 Driver identification
  • 190.035 SuperFinish
  • 190.040 Mower rake accessory kit
  • 190.041 Tiltrotator TR-20/TR-25
  • 190.045 Pose direct de LiTiU, raccordement
  • 190.046 Pose direct de LiTiU raccordé
  • 190.047 LiTiU sandwich installation
  • 190.050 Refuelling system
  • 190.055 Bypass filter
  • 190.060 Control unit pre-heating
  • 190.062 Hydraulic oil pre-heating
  • 190.063 Fuel preheating
  • 190.064 Fuel pre-heating
  • 190.066 Coolant pre-heating
  • 190.068 Engine oil pre-heating
  • 190.090 Camera monitoring system
  • 190.092 Skyview 360°
• 200 Diagnosis
  • 200.005 Sculi variables editor
  • 200.006 Sculi – access to the variables
  • 200.010 Testing and adjustment software wizard
  • 200.012 Accelerating starting time from Sculi Wizard
  • 200.020 Software update
  • 200.030 Master 4: Reset on master module
  • 200.035 CAN module addressing
  • 200.036 Master 4: Master module
  • 200.038 CAN connections
  • 200.090 Malfunctions
  • 200.095 Information menu
  • 200.098 Master 5: Master module (central control)
  • 200.100 Master 5: Reset to factory settings
  • 200.102 Master 5: Connect "LiFT" function
  • 200.104 Master 5: Software update
  • 200.106 Master 5: Connect SCULi diagnostic software
  • 200.108 Master 5: Service file
  • 200.110 Master 5: Import license file
  • 200.112 Master 5: Software backup
  • 200.114 Master 5: Data backup event