Liebherr LH50 C Hydraulic Excavator Operators Service Repair Manual

Table of Content – Liebherr LH50 C Hydraulic Excavator Type 1223 Manual

• Book I Chapter 010 – 200
  • 000.002 Preface
• 010 Introduction
  • 010.005 Standards and regulations
  • 010.010 New features and changes
  • 010.020 Safety instructions
  • 010.032 Tightening torques for fittings
  • 010.043 Installation instructions: Mounting clamping nuts
  • 010.050 Special tools, general
  • 010.051 Special tools for hydraulic system
  • 010.052 Special tools for electrical equipment
  • 010.054 Special tools for slewing gearbox
  • 010.056 Mounting device for multi-disc brake
  • 010.059 Special tools for axles (Kessler)
  • 010.060 Special tools, ERC cylinder
  • 010.070 Preservation guidelines
  • 010.071 Conservation of hydraulic cylinders

030.240 Maintenance LH50 C

030.400 Adjustment procedures from software 009

030.401 Adjustment procedures from software 023

030.410 Adjustment procedures from software 009

030.411 Adjustment procedures from software 023

030.420 Adjustment procedures from software 010

030.421 Adjustment procedures from software 023

030.430 Adjustment procedures from software 009

030.431 Adjustment procedures from software 023

040 Drive group

• 040.012 Technical data, diesel engine
• 040.021 Liebherr – diesel engine D934 A7 140kW – 175kW
• 040.032 Fuel system
• 040.034 Air filter system
• 040.060 Coupling
• 040.065 Liebherr diesel particulate filter
• 040.070 Pump distributor gear

050 Cooling system

• 050.010 Cooling system
• 050.020 Fan control
• 050.032 Reversible fan control

060 Working hydraulics

• 060.001 Overview of hydraulic symbols
• 060.002 Colour code of hydraulic schematics
• 060.003 Reducing pressure in the hydraulic system
• 060.010 Design of hydraulic system
• 060.020 Component list – hydraulic schematic

070 Travel hydraulics

• 070.010 DMVA regulating motor (travel drive)
• 070.020 CMVE travel motor
• 070.025 FMV travel motor
• 070.026 Travel brake valve for travel motor FMV

080 Hydraulic components

• 080.015 Hydraulic tank
• 080.019 Putting into service hydraulic pumps
• 080.020 DPVP 108 double variable-displacement pump in ERC models
• 080.026 A4 VG slewing pump
• 080.030 Fan pump A10V0
• 080.040 Control oil unit
• 080.042 Servo control unit 4x (working functions)
• 080.044 Servo control unit 2x
• 080.050 Control block M8
• 080.063 FMF slewing gear motor
• 080.075 Rotary connection 13x
• 080.076 Rotary connection 6x
• 080.080 Hydraulic differential cylinder
• 080.085 Energy recuperation cylinder (ERC)
• 080.086 ERC expansion tank
• 080.087 ERC piston rod protection
• 080.090 Accumulator
• 080.110 Line break safety valve

090 Steering system

• 090.010 Hydraulic steering system
• 090.020 Joystick steering
• 090.030 Four wheel steering

100 Brake system

• 100.010 Hydraulic brake system
• 100.020 Compact brake block

110 Electrical system

• 110.001 Overview of electrical symbols
• 110.010 Operator's platform (wheeled machine)
• 110.022 Operator's platform (crawler)
• 110.025 Electrical system: undercarriage
• 110.050 Circuit diagram: operator's platform
• 110.070 Circuit diagram: basic machine
• 110.075 Circuit diagram: diesel engine D934 / D944
• 110.085 Slip ring rotary connection
• 110.090 Malfunctions
• 110.095 Info menu – electrical inputs and outputs

120 Transmission / Travel gearbox

• 120.010 2 HL 270 / 290 transmission
• 120.020 HBGV block for transmission
• 120.021 Travel gearbox – series P(r)
• 120.050 Travel gearbox FAT 325/355

130 Axles / Drive

• 130.001 Tyres
• 130.005 Oscillating axle support
• 130.040 Oscillating axle LT 71 / LT 81
• 130.041 Rigid axle D 71 / D 81
• 130.042 Rigid axle LT 71 / LT 81, steered
• 130.046 Use of special tool (Kessler axles)
• 130.050 Travel gear / travel gear
• 130.052 Wear on running gear parts
• 130.053 Wear limits
• 130.054 Chain
• 130.055 Tensioning unit
• 130.056 Idler-wheel
• 130.057 Track roller
• 130.059 Carrier roller
• 130.060 Slip ring seal

140 Steel componants – basic machine

• 140.010 Repair welding guideline

150 Working equipment

• 150.020 Height limiting
• 150.032 Support blade
• 150.034 Dozer blade
• 150.036 Outrigger support
• 150.037 Outrigger monitoring system
• 150.040 Hydraulic quick coupler

160 Cab / heating / air conditioning

• 160.001 Installation instruction for air-conditioning hose fittings
• 160.002 Mounting of operator's cab elevation
• 160.010 Height adjustable cab LHC 340/LHC 360
• 160.015 Height adjustable operator's cab
• 160.030 Auxiliary heater
• 160.040 Air conditioning
• 160.045 Air-conditioning system service

170 Lubrication system

• 170.001 Repair instructions for lubrication hoses
• 170.010 Central lubrication system
• 170.030 SX-E progressive distributor
• 170.035 MX-F progressive distributor

180 Slewing gear mechanism / Slewing ring

• 180.010 Slewing gearbox
• 180.030 Slewing brake
• 180.032 Positioning slewing brake
• 180.050 Slewing ring

190 Software / Hardware

• 190.001 LiDAT remote diagnosis system
• 190.003 Hydraulic-electric coupling system
• 190.004 Check template for Likufix
• 190.006 Switchable overload warning system
• 190.010 Tool control
• 190.011 Grapple rotation
• 190.014 Tool Management
• 190.015 Reversible fan
• 190.030 Lifting boom when closing grapple
• 190.035 Generator drive accessory kit
• 190.046 High-pressure circuit 1 (AHS-11)
• 190.050 Changeover, high pressure circuit 1
• 190.055 Bypass filter
• 190.065 Flow limitation
• 190.070 Control unit for pre-heating
• 190.072 Hydraulic oil pre-heating
• 190.074 Fuel preheating
• 190.076 Coolant pre-heating
• 190.078 Engine oil pre-heating
• 190.080 Hoist cylinder summation with flow limitation
• 190.085 Pressure-free stick retraction
• 190.090 Stick extension shut-down
• 190.100 Hoist cylinder summation
• 190.105 Hoist cylinder summation with flow limitation
• 190.110 Hoist cylinder shut-off
• 190.115 Grapple pressure reduction

200 Options

• 200.005 Sculi variables editor
• 200.006 Sculi access to the variables
• 200.010 Checking and adjusting software wizard
• 200.020 Software update
• 200.030 Master module reset
• 200.035 CAN module addressing
• 200.038 CAN data transmission