Liebherr A942 Hydraulic Excavator Service Repair Manual

Table of Content – Liebherr A942 Hydraulic Excavator Type 159, 312 Manual

• Book I A 900 – A 942
  • Titel
  • Introduction
  • Index
• 1.2 Tables / Data / Torque
  • 1.2.00 Description of metric bolts / Wrench sizes
  • 1.2.01 Tightening torques bolts grade 8.8
  • 1.2.02 Tightening torques bolts grade 10.9
  • 1.2.03 Tightening torques bolts grade 12.9
  • 1.2 05 Tightening torques for Durlock bolts grade 12.9
  • 1.2.08 1.2.01 Tightening torques for Ermeto connections
  • 1.2.10 Hole diameters for tapping standard metric thread
  • 1.2.11 Hole diameters for tapping fine metric thread
  • 1.2.15 ISO – Tolerances
  • 1.2.20 Graphic sysmbols for hydraulic and pneumatic schematics
  • 1.2.25 Graphic symbols for electrical diagrams
• 1.3 Tools / Special tools
  • 1.3.00 Special tools for excavator
  • 1.3.01 Mini text system
  • 1.3.02 Pressure gauge
  • 1.3.03 Flow meter
  • 1.3.04 Test fitting
  • 1.3.05 Spool clamp
  • 1.3.06 Leakag plate
  • 1.3.07 Spool travel measuring tool
  • 1.3.08 Mounting tool for hydraulic cylinder, pumps and variable flow motors
  • 1.3.09 Piston wrench
  • 1.3.10 Piston nut wrench
  • 1.3.12 Piston nut wrench
  • 1.3.13 Test fitting for variable flow motors LMV
  • 1.3.14 Removing device for transmital travel gear
• 1.4 Welding
  • 1.4.01 Welding joints (Din 912)
• 1.5 Lubricants
  • 1.5.01 Lubricant chart
  • 1.5.02 Lubricating oil
• 2.0 Technical data / Inspection schedule
  • 2.0.09 Technical data A 942
  • 2.0.29 Inspection schedule A 942
• 2.1 Engine
  • 2.1.01 Deutz Engine FL 912
  • 2.1.02 Deutz Engine BFL 913/913 C
  • 2.1.03 Deutz Engine FL 912
  • 2.1.05 Liebherr Engine D 904 NA / D 904 T
  • 2.1.06 Liebherr Engine D 906 NA / D 906 T
  • 2.1.10 Sensor controlled low idle automatic
  • 2.1.11 Sensor controlled low idle automaic
• 2.2 Swing gear / Swing brake
  • 2.2.00 Torque value
  • 2.2.03 Remove and install swing gear A/R 922 / R 932 / A/R 942
  • 2.2.06 Disassembly / Assembly Instructions A/R 922 / R 932 / A/R 942
  • 2.2.10 Swing brake / Maintenance and pressure settings
  • 2.2.11 Swing brake / Remove and install
  • 2.2.12 Swing brake / Funktion and operating / Bleed brake system
  • 2.2.13 Repair and funktion od wheel cylinder with brake assembly
  • 2.2.14 Repair and funktion of master cylinder
  • 2.2.15 Swing brake troobleshooting
• 2.3 Hydraulic system
  • 2.3.00 General information
  • 2.3.01 Hydraulic system Pressure settings
  • 2.3.08 Hydraulic system A 942
  • 2.3.20 Pressure cut in / Lift
  • 2.3.25 Front / Rear outriggers
  • 2.3.30 Hydraulic servo system
  • 2.3.32 Servo control with joystick
  • 2.3.33 Servo control with foot pedal
  • 2.3.40 Control valves
  • 2.3.42 Control valves NG 16 / NG 22
  • 2.3.50 Pressure relief valve – Direct acting
  • 2.3.51 Pressure relief valve – Pilot operated
  • 2.3.52 Pressure relief valve – Direct acting
  • 2.3.53 Two way pressure relief valve
  • 2.3.54 Suction valve
  • 2.3.55 Thermostat valve
  • 2.3.56 Flow divider
  • 2.3.57 Restrictor check valve
  • 2.3.58 Check valve with hydraulic release
  • 2.3.59 Travel brake valve
  • 2.3.62 Pressure relief valve with pressure cut in
  • 2.3.84 Hydraulic pump LPVD (Liebherr) A 900 – A 942
  • 2.3.88 Comparative flow test
  • 2.3.89 Pump flow diagram
  • 2.3.91 Hydraulic variable flow motor A6V (Hydromatik) A 900 – A 942
  • 2.3.92 Hydraulic fixed displacement motor LMF (Liebherr) A 900 – A 942
• 2.4 Air pressure system
  • 2.4.01 Pressure chart
  • 2.4.20 Description and function of components
• 2.5 Rotary connection
  • 2.5.02 Five-way air rotary connection
  • 2.5.05 Oil rotary connection "Grau"
  • 2.5.06 Oil rotary connection "Sigma"
  • 2.5.08 Oil rotary connection "Liebherr"
• 2.6 Electrical system
  • 2.6.01 General notes
  • 2.6.02 Battery handling and maintenance
  • 2.6.03 Starter
  • 2.6.04 Alternator
  • 2.6.05 Glow plug
• 2.7 Heater / Air conditioner
  • 2.7.05 Engin oil heater
  • 2.7.09 Cab heater installation A 942
  • 2.7.10 Cab heater D1L
• 3.1 Two speed gear box
  • 3.1.03 Remove and install / Gearbox
  • 3.1.05 Diassembly and assembly / Two speed gear box
• 3.2 Front and real axle / Differential
  • 3.2.01 Examples of Gleason gear
  • 3.2.03 Removing and installation of front axle and differential
  • 3.2.04 Removing and installation of rear axle and differential
  • 3.2.05 Diassembly and assembly of differential – Carrier A1
  • 3.2.06 Diassembly and assembly of differential – Carrier B
  • 3.2.07 Diassembly and assembly of differential – Carrier C
  • 3.2.10 Removing and installing / Front Axle
  • 3.2.15 Removing and installing / Rear axle
• 3.3 Hydrostatic steering
  • 3.3.01 Hydrostatic steering
  • 3.3.05 Servostat
  • 3.3.06 Flow indicator
• 3.4 Oscillating axle support
  • 3.4.05 Oscillating axle support A 900 / A 942
• 3.5 Brakes
  • 3.5.01 Pressure chart and instructions
  • 3.5.02 Removing and installing – Four wheel brake
  • 3.5.03 Construction and funktion of brakes / Bleeding
  • 3.5.04 Function and adjusting – Hydraulic simplex brake
  • 3.5.05 Function and repair of master cylinder
  • 3.5.06 Troubleshooting
  • 3.5.10 Function and instructions of brake (Pneumatic)
  • 3.5.11 Function and adjusting of brake (Mechanical)
  • 3.5.12 Troubleshooting
• 3.6 Swing ring
  • 3.6 Remove and install swing ring
• 5.2 Special equipment / accessory kits
  • 5.2.02 Overload warning device / General data
  • 5.2.06 Overload warning device A/R 942
  • 5.2.09 Hoist limit
  • 5.2.10 Load check valve
  • 5.2.11 Load check valve / Leckoil free
  • 5.2.14 Attachment AS1 A/R 942
  • 5.2.20 Attachment ASH A 942
  • 5.2.30 Grapple Attachment
  • 5.2.31 Grapple rotary device
  • 5.2.32 Quick change coupling
  • 5.2.34 Pin lock
  • 5.2.35 Limit switch for industrial attachment
  • 5.2.36 Crane attachment
  • 5.2.38 Industrial crane
  • 5.2.40 Adjustable cab
  • 5.2.42 Dumping attachment
  • 5.2.44 Dozer blade
  • 5.2.46 Outrigger control
  • 5.2.47 Slipring rotary connenction
  • 5.2.50 Hydraulic hammer
  • 5.2.51 Special attachment
• 5.3 Hydraulic cylinder
  • 5.3.01 Hydraulic cylinder – Torque values
  • 5.3.02 Hydraulic cylinder – Removing and installing
  • 5.3.05 Hydraulic cylinder without cushioning
  • 5.3.10 Hydraulic cylinder without/with cushioning
  • 5.3.15 Hydraulic cylinder – Steering
  • 5.3.25 Hydraulic cylinder A/R 942