Liebherr A 934 - A 954 B-HD Litronic Hydraulic Excavator Service Manual PDF

This service manual has been prepared to provide you with technical information on the design and construction of the various components which made up the Liebherr excavator.
Service manual contains brief and precise descriptions, guidelines and drawings of adjustment procedures as well as hydraulic and electrical schematics, and graphically depicted diagrams and sectionals to help you with any repairs, which might become necessary on our hydraulic excavators.
This manual also intended to provide you with service information regarding certain and adjustment values.
This manual comes in PDF format, all pages can be printed easily. We recommend to use Adobe PDF Reader, to be sure all images / graphics will display correctly.

Models covered:
A 934 Litronic,
A 944 HD Litronic,
A 954 HD Litronic.

Index:

• 1 General Information
  • Safety Information
  • Charts / Norms
  • Conversion Factors
  • Service Fluids
• 2 Tools
  • Special Tools for Excavator
  • Special Tools for Liebherr Diesel Engine
  • Special Tools for Hydraulic
  • Special Tools for Electrical Connections
  • Special Tools for Gears
  • Spool Travel Measuring Tool
  • Piston Wrench
  • Impression Fixture for SAT Swing Gear
  • Slotted - Nut Wrench for SAT Swing Gear
  • Test Kit for BPV Pumps
• 3 Technical Data Maintenance Guidelines
  • Technical Data
  • Maintenance Guidelines
  • Lubrication Chart
• 4 Engine
  • Technical Data Liebherr Diesel Engine
  • Engine Speed Adjustment
  • Sensor Controled low Idle Automatic (optional equipment)
• 5 Clutch / Splitterbox
  • Coupling
  • Splitterbox
• 6 Hydraulic system
  • Adjustment and inspection check list
  • Hydraulic system
  • Hydrostatic fan drive
• 7 Hydraulic Components
  • Hydraulic pump ass. LPVD / General data
  • Hydraulic pump ass. LPVD / Pump regulation
  • Hydraulic pump ass. LPVD / Design
  • Hydraulic pump ass. LPV / General data
  • Variable displacement pump LPV
  • Slewing pump BPV
  • Slewing pump A 4 VG
  • Variable displacement pump A 10 VO
  • Hydraulic motors / types
  • Hydraulic fixed displacement motor LMV
  • Hydraulic fixed displacement motor A 6 V
  • Hydraulic fixed displacement motor FMF with discharge
  • Hydraulic cylinder / Construction / function / repair
  • Hydraulic cylinder / Extension and retraction times
  • Hydraulic cylinder-chart
  • Servo control system
  • Servo oil unit
  • Servo oil and control unit
  • Distributor block
  • Servo control with joystick
  • 2-way Servo control with foot pedal
  • 1-way Servo control with foot pedal
  • 2-way Servo control with stick
  • Control Valve Blocks / - Chart
  • Control Valve Blocks / Leak oil check
  • 7-way Control Valve Block NW 22
  • 7-way Control Valve Block NW 32
  • 6-way Rotary connection
  • 7-way Rotary connection
  • 9-way Rotary connection
  • Primary pressure relief valve - pilot operated
  • Pilot operated pressure relief valve with pressure cut in
  • Pilot operated pressure relief valve with suction function
  • Secondary pressure relief valve
  • Suction valve
  • Restrictor check valve
  • Restrictor check valve - hydr. releasable
• 8 Electrical System
  • Electrical system / Comp. of electr. syst.
  • Electrical system / Basic machine
  • Electrical system / Special installations
  • Slipring rotary connection
  • Diagram / Regulating current
• 9 Swing Gear
  • Swing Gear SAT
  • Swing Brake
  • Swing Brake with Additional Positioning Foot Pedal (optional equipment)
• 10 Swing Ring
  • Swing Ring
• 11 Two Speed Gear Box
  • Distributor gear 2 HL 100
  • Gear control HBGV - Block for 2 HL 100
• 12 Axles / Gear Box
  • General
  • Steering axle LT71/81 with multiple disk brake
  • Fixed axle D71/81 with multiole disk brake
  • Differential D 51
  • Steering axle LT 91 with disk brake
  • Fixed axle D 91 with disk brake
  • Differential D 51
  • Steering axle Kessler LT 91 with disk brake
  • Differential Kessler D 108
  • Steering axle Kessler LT 102 with multiple disk brake
  • Fixed axle Kessler D 102 with multiple disk brake
  • Differential Kessler D 108
  • Backgear / Spring pressure disk brake
• 13 Steering
  • Hydrostatic Steering System
  • Hydrostatic Four Wheel Steering
  • Servostat
• 14 Oscillating Axle Stabilizer
  • Oscillating axle
  • Stabilizer cylinder
• 15 Brake System
  • General data and operating pressures
  • Hydraulic brake system
  • Compact brake block
  • Brakes
• 16 Special Attachments / Additional Hydr. Install.
  • Load check valve Rexroth
  • Hoist cylinder shut off
  • Stick cylinder shut off
  • Electronic stick cylinder shut off
  • Installation kit AS 1
  • Installation kit AHS 1
  • Central lubrication
  • Individual control / outrigger support
  • Height adjustable cab with hoist arms
  • Adapter kit - flow replenisher / boom
  • Adapter kit - generator drive
• 17 Cab / Heater Air Conditioning System
  • Additional Heater D5 WS
  • Air Conditioning Syst. "KONVEKTA" KHL II-1
  • Air Conditioning Syst. "KONVEKTA" KHL 4
• 18 Under - / Uppercarriage Attachments
• 19 Arrangement of Tanks