The factory service manual for the Liebherr A 900 C, A 904 C, A 914 C and A 924 C Litronic EDC wheeled excavators, order no. 10216479, edition 09/2004 with updates through 09/2010.
Eighteen groups run from the D 934 diesel and DPVO 165 variable-displacement pump through the LSC hydraulic system, 2 HL 290 two-speed gearbox, MS-E 3060 steering axle, swing gear and brake, oscillating axle support, brakes, cab heater/AC and central lubrication. You get model-specific pressure adjustment protocols with measuring point locations, 21 A3 fold-out hydraulic circuit sheets, colour wiring diagram sheets by electrical kit, and the service level menus for the BBT/DISP2 display and the Datalogger.
This is the book the dealer techs work from.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Front Matter and Chapter Index | 1-8 | Document Identification, Order No. 10216479, Edition and Update History, Chapter Index, Manufacturer Details |
| Group 1 - General Information | 9-116 | Changes and Modifications to Series, Approved Lubricants and Fuels, Oil Supplier Approval Tables, Change Marks, Safety and Handling Guidelines |
| Group 2 - Tools | 117-170 | Special Tools General Information, Special Tools for Electrical Equipment, Assembly Tools for Hydraulic Cylinders, Special Tools for Hydraulic Systems, Special Tools for Axles (ZF), Crimp Tool |
| Group 3 - Technical Data and Maintenance Guidelines | 171-714 | Checking and Adjusting Tasks, Measuring Points and Locations, Value Measured Records, Test Current, Type Overview a 904 C LI, Type 1002 Data |
| Group 4 - Engine | 715-820 | Technical Data of Diesel Engines, Bleeding the Fuel System, Datalogger Software Version 2.3.09, Datalogger Settings Menu, Datalogger Software Update, Pressure Offset |
| Group 5 - Clutch and Splitterbox | 821-834 | Pump Distributor Gear, Design and Function of Coupling, Coupling Torsion Damper, Dismantling and Installing the Coupling, Variable-Displacement Pump, Oil Filler Neck and Dipstick |
| Group 6 - Hydraulic System | 835-930 | Layout of Hydraulic System, LSC System, Hydraulic Circuit Diagrams, Secondary Pressure-Relief Valve, Restrictor Check Valve, Shuttle Valve, Pressure-Relief Bleeder Valve, Hydraulic Tank |
| Group 7 - Hydraulic Components | 931-1252 | LSC Control Valve Block, LSC Pilot Plate, DMVA Regulating Motor (Travel Drive), Hydraulic Double Plunger Cylinder, Secondary Pressure-Relief Valve, Technical Data |
| Group 8 - Electrical System | 1253-1980 | Overview of Electrical Symbols, Arrangement of Components, Right Console, BBT/DISP2 Display, Service Level and Machine-Specific Settings, Directory of Electrical Kits, Wiring Diagrams of Kits |
| Group 9 - Swing Gear | 1981-2010 | Slewing Gear Mechanism, Slewing Gear Brake, Positioning Slewing Brake, Repair of Brake, Functional Description |
| Group 10 - Swing Ring | 2011-2020 | Slewing Ring, Tilting Play, Factory Play, Maximum Tooth Backlash, Weight of Uppercarriage with and Without Attachment |
| Group 11 - Two Speed Gear Box | 2021-2056 | 2 HL 290 Transmission, HBGV Block for Transmission, Shifting Piston, Shift Lock Positions, Lubricating Oil Pump, Leakage Check Valve |
| Group 12 - Axles and Gear Box | 2057-2166 | Axle Housing, Ms-E 3060 Steering Axle, Design of Output Unit, Checking Tyre Pressure, Roller Bearings and Shaft Seals, Technical Data |
| Group 13 - Steering | 2167-2224 | Hydraulic Steering System, Steering Valve, Steering Cylinder, Servostat, Joystick Steering, Four-Wheel Steering, Replacement of Steering Cylinder Sealing Elements |
| Group 14 - Oscillating Axle Stabilizer | 2225-2242 | Oscillating Axle Support with Automatic Control, Support Cylinder, Stop Valve, Sectional Drawing, Replacing Support Cylinder Sealing Elements |
| Group 15 - Brake System | 2243-2270 | Hydraulic Brake System, Compact Brake Block, Operating Pressures of the Brake System, Inspection and Adjustment of Brake Settings, Pressure Switch and Brake Light, Brake Piston |
| Group 16 - Special Attachments and Accessory Kits | 2271-3008 | Likufix Hydraulic Coupling System, Hydraulic Operator's Cab Elevation System, Tool Management, Electronic Stick Cylinder Shut-Down, AHS 11 and AHS 12 Proportional Control, Plug Connections |
| Group 17 - Cab Heater and Air Conditioning System | 3009-3098 | Heating and Air-Conditioning System, Auxiliary Heater, Description and Operation of Test Menu, Fault Diagnosis, Inspection and Repair Instructions |
| Group 18 - Undercarriage, Uppercarriage and Attachments | 3099-3168 | Fully Automatic Central Lubricating System, Central Lubrication Pump, Sx-E Progressive Distributor, Mx-F Progressive Distributor, Semi-Automatic Central Lubrication System, Fixture of Operator's Cab Elevation System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine (A 900 C / A 904 C) | Liebherr D 934 SA6 diesel | p. 725 |
| Engine (A 914 C / A 924 C) | Liebherr D 934 S/L A6 diesel | p. 729 |
| Lubricating oil, standard oil pan | max. 20.5 l / min. 13.5 l | p. 725 |
| Oil change with filter replacement | approx. 29 l | p. 725 |
| Cooling liquid including coolant | 30 l | p. 725 |
| Engine mounting bolts | pre-tighten with torque 60 Nm, then final tightening angle | p. 726 |
| Primary pressure, safety valve (A 900 C LI, Type 1002, protocol V4.3) | 400 +20 bar at measuring point 41 | p. 251 |
| Control valve block, pressure-relief valves | 120 Nm | p. 1136 |
| Wheel nut torque (A 900 C / A 904 C) | 460 Nm | p. 2060 |
| Main pump | Variable-displacement pump DPVO 165 | p. 944 |
