Liebherr Wheeled excavator A 924 Litronic Operator’s manual 89588 – PDF DOWNLOAD
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Liebherr Wheeled excavator A 924 Litronic Operator’s manual 89588 – PDF DOWNLOAD
Language : English
Pages : 462
Downloadable : Yes
File Type : PDF
Size: 95.5 MB
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Liebherr Wheeled excavator A 924 Litronic Operator’s manual 89588 – PDF DOWNLOAD
Product identification
Manufacturer: Liebherr-Hydraulikbagger GmbH
Type: A 924 Litronic
Type no.:1206
from serial number:89588
Preface
This operating manual is intended for you as the machine operator or as a member of the maintenance personnel. It contains warnings, important information, and tips for working with the machine. It simplifies the process of familiarization and getting to know the machine and helps to avoid faults caused by incorrect operation.
Compliance with the operating manual increases the reliability and service life of the machine.
The operating manual must be kept with the machine. Make sure that a copy is always kept close to hand at the workplace.
Read the operating manual before initial commissioning and subsequently at regular intervals. Everyone who carries out work with or on the machine must be familiar with and use this operating manual.
Examples of this work:
- Operation, including setup and fitting attachments, elimination of faults, care, disposal of service products and consumables
- Maintenance, including servicing, inspection, and repair
- Transporting or loading the machine
The owner is responsible for supplementing the operating manual with instructions based on existing national regulations on accident prevention and environmental protection. In addition to this operating manual and the regulations on accident prevention applicable in the user’s country and at the place of use, it is also necessary to comply with the recognized technical rules on safety and technically proficient working.
- Some sections of this operating manual do not apply to all machines.
- Some illustrations in this operating manual may show details and implements that are different from your machine.
- In some illustrations, protective devices and covers have been removed to provide a clearer representation.
- Liebherr machines are subject to continuous development and improvement. This may have resulted in modifications to your machine which are possibly not referred to in this operating manual.
- If you require further explanations or information, please contact Liebherr customer service.
Liability and warranty
- Due to the wide variety of products offered by other manufacturers (e.g., service products, lubricants, tool attachments, and spare parts), Liebherr cannot examine the general suitability and absence of defects in third-party products which are used in or on Liebherr products. The same applies to possible interactions between third-party products and Liebherr products.
- Third-party products are used in or on Liebherr machines at the user’s own discretion. Liebherr does not offer any warranty or accept any liability for losses of any kind caused by failures of or damage to Liebherr machines attributable to the use of third-party products.
- Furthermore, Liebherr will not recognize any warranty claims attributable to incorrect operation, inadequate maintenance, or the failure to follow safety instructions.
Modifications, conditions, copyright
- Liebherr reserves the right to make modifications in the course of technical development, without issuing prior notification.
- Information and illustrations in these instructions are not allowed to be duplicated, distributed, or used for the purposes of competing with Liebherr. All rights under copyright legislation are expressly reserved.
- The aforementioned provisions do not extend the warranty and liability conditions in the general terms and conditions of business of Liebherr.
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
Liebherr Wheeled excavator A 924 Litronic Operator’s manual 89588 – PDF DOWNLOAD
Product description 19
1.1 Technical description 19
1.1.1 General overview 19
1.2 Technical data 20
1.2.1 Vibration emission 20
1.2.2 CO2 emissions of diesel engine 20
1.2.3 Sound level 22
1.2.4 Specifications 23
2 Safety warnings 25
2.1 Information on these instructions 25
2.1.1 Representation of warning messages 25
2.1.2 Graphic symbols in these instructions 25
2.2 Intended use 26
2.2.1 Laws, rules, guidelines and safety regulations 26
2.2.2 Intended use 26
2.2.3 Foreseeable misuse 27
2.2.4 Operating conditions 27
2.2.5 Disposal 28
2.3 Description of staff 29
2.3.1 Personal protective equipment 29
2.3.2 Requirements for staff 29
2.3.3 Operating company 30
2.3.4 Operator 30
2.3.5 Maintenance staff 31
2.3.6 Electrical engineer 32
2.3.7 Refrigeration technician 33
2.3.8 Slinger 33
2.3.9 Spotter 34
copyright© Liebherr-Hydraulikbagger GmbH 2019
A 924 Litronic – 1206 / 89588 llEBHERR 9
Contents Operator’s manual
2.4 Signs on the machine 35
2.4.1 Warning signs 35
2.4.2 Information signs 39
2.4.3 Identification plate 44
2.5 Protective devices on the machine 44
2.5.1 Safety lever or folding console 44
2.5.2 Operator’s cab 44
2.5.3 Roll over protective structure (ROPS) 45
2.5.4 Falling object protective structures (FOPS and FGPS) 45
2.6 Emergency equipment on the machine 46
2.6.1 Emergency exit (standard) 46
2.6.2 Fire extinguisher (option) 46
2.6.3 Emergency command devices of machine 46
2.6.4 Emergency stop function of machine 47
2.7 Safe operation 47
2.7.1 Intoxicants 47
2.7.2 Dangerous fuels and operating fluids 47
2.7.3 Transporting machine 48
2.7.4 Access to machine 48
2.7.5 Machine danger zone 49
2.7.6 Visibility 49
2.7.7 Protection against vibration 50
2.7.8 Operation of machine 51
2.7.9 Load-lifting work 54
2.7.10 Demolition work 54
2.8 Safe maintenance 55
2.8.1 Spare parts 55
2.8.2 Heavy parts 55
2.8.3 Regular checks 55
2.9 Modifications to the machine 56
2.9.1 Modifications, add-ons and retrofittings 56
3 Control and operation 57
3.1 Control and operating elements 57
3.1.1 Overview of operator’s platform 57
copyright© Liebherr-Hydraulikbagger GmbH 2019
10 llEBHERR A 924 Litronic – 1206 I 89588
Operator’s manual Contents
3.1.2 Control unit A 58
3.1.3 Control unit B 59
3.1.4 Control unit C 59
3.1.5 Further control units 60
3.1.6 Symbols on control description sticker 60
3.1.7 General symbols 60
3.1.8 Control changeover 61
3.1.9 Optional equipment 62
3.1.10 Working tools 62
3.1.11 Working attachment 64
3.1.12 Support 65
3.1.13 Height-adjustable cab 66
3.1.14 Wheeled excavator travel mode 66
3.1.15 Crawler excavator travel mode 67
3.1.16 Rail excavator travel mode 67
3.2 Display 68
3.2.1 Display 68
3.2.2 Status symbols 69
3.2.3 Start page menu 82
3.2.4 Camera menu 83
3.2.5 Automatic heating and automatic ventilation 84
3.2.6 Automatic air conditioning 88
3.2.7 Operating status menu 91
3.2.8 Diesel particulate filter submenu (option) 92
3.2.9 Sensor-controlled low idle automatic and automatic engine stop
submenu (option) 93
3.2.10 System settings menu 94
3.2.11 Operating hour meter and odometer submenu 95
3.2.12 Windscreen wiper interval submenu 95
3.2.13 Radio remote control submenu 96
3.2.14 Display settings submenu 97
3.2.15 Display brightness and display volume submenu 97
3.2.16 Camera image contrast submenu 98
3.2.17 Camera return time submenu 98
3.2.18 Regional settings and system parameters submenu 99
copyright© Liebherr-Hydraulikbagger GmbH 2019
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Contents Operator’s manual
3.2.19 Unit selection submenu 99
3.2.20 System diagnosis submenu 100
3.2.21 Time zone submenu 100
3.2.22 Time format and date format submenu 101
3.2.23 Language selection submenu 101
3.2.24 Electrical outputs submenu 102
3.2.25 Electrical inputs submenu 103
3.2.26 Function settings menu 103
3.2.27 Central lubrication system submenu (option) 105
3.2.28 Maintenance submenu 105
3.2.29 SF submenu 107
3.2.30 User profile submenu 109
3.2.31 Stick cylinder shut-off and hoist cylinder shut-off submenu (option) 110
3.2.32 Workspace limitation submenu (option) 110
3.2.33 Automatic reversible fan drive submenu (option) 111
3.2.34 Comfort slewing brake submenu (option) 112
3.2.35 Bleeding hydraulic circuit submenu 112
3.2.36 Information menu 113
3.2.37 Operating time submenu 114
3.2.38 Fuel consumption submenu 114
3.2.39 Key assignment submenu 115
3.2.40 Tool Control menu 115
3.2.41 Service codes menu 116
3.3 Control 118
3.3.1 Battery main switch 118
3.3.2 Entering and exiting machine 119
3.3.3 Emergency exit 121
3.3.4 Fire extinguisher (option) 121
3.3.5 Folding console 122
3.3.6 Operator’s seat 123
3.3.7 Safety belt 131
3.3.8 Steering wheel 132
3.3.9 Ignition key 133
3.3.10 Confirmation button 133
3.3.11 Horn 134
copyright© Liebherr-Hydraulikbagger GmbH 2019
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Operator’s manual Contents
3.3.12 Windscreen 135
3.3.13 Sun blind 137
3.3.14 Viewing devices 138
3.3.15 Lighting 144
3.3.16 Cab lighting system 145
3.3.17 Windshield wipers 146
3.3.18 Windscreen washer system 146
3.3.19 Auxiliary heater (option) 147
3.3.20 LiDAT (option) 147
3.4 Operation 149
3.4.1 Inspection tour before putting into service 149
3.4.2 Refuelling 150
3.4.3 Refuelling with electric refuelling pump (option) 150
3.4.4 Topping up diesel exhaust fluid 152
3.4.5 Immobiliser (option) 152
3.4.6 Preparing machine for dust intensive application 154
3.4.7 Preparing machine for use in biologically sensitive areas 154
3.4.8 Starting diesel engine 155
3.4.9 Bringing machine to operating temperature 155
3.4.10 Engine speed and operating mode 156
3.4.11 After starting 158
3.4.12 Sensor-controlled low idle automatic 159
3.4.13 Automatic engine stop after idling (option) 159
3.4.14 Shutting off diesel engine 160
3.4.15 Shutting off diesel engine in an emergency 161
3.4.16 Travelling and braking 161
3.4.17 Speed controller 164
3.4.18 Automatic service brake 165
3.4.19 Joystick steering 167
3.4.20 Travel alarm (option) 168
3.4.21 Ride control (option) 169
3.4.22 Locking and unlocking oscillating axle 171
3.4.23 Supporting machine 173
3.4.24 Controlling working attachment 175
3.4.25 Turning and braking uppercarriage 177
copyright© Liebherr-Hydraulikbagger GmbH 2019
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Contents Operator’s manual
3.4.26 Slewing brake 178
3.4.27 Positioning slewing brake 183
3.4.28 Selecting boom or working tool 183
3.4.29 Laterally adjusting boom 184
3.4.30 Selecting the working tool 184
3.4.31 Controlling special working attachment with mini-joystick 185
3.4.32 Using working tool in continuous mode (option) 186
3.4.33 Changing over control of right mini-joystick (option) 188
3.4.34 PowerLift 189
3.4.35 Reversible fan drive for radiator cleaning (option) 190
3.5 Shut-off functions 193
3.5.1 Stick cylinder shut-off (option) 193
3.5.2 Hoist cylinder shut-off (option) 196
3.5.3 Height limitation 200
3.5.4 Overload warning system (option) 209
3.6 General working methods 212
3.6.1 Working without damaging the machine 212
3.6.2 Putting machine in working position 213
3.6.3 Travelling at operating location 214
3.6.4 Travelling with load at operating location 215
3.6.5 Driving on public roads 216
3.6.6 Working with backhoe bucket 220
3.6.7 Flattening the ground 222
3.6.8 Working with hydraulic hammer 223
3.6.9 Handling loads 225
3.6.10 Loading transport vehicle 225
3.6.11 Lifting loads 226
3.6.12 Lifting loads with quick coupler 227
3.6.13 Driving technique 228
3.6.14 Use of banksmen 228
3.7 Installing and removing working attachment 229
3.7.1 Using quick coupler 229
3.8 Parking machine 230
3.9 Transport 231
3.9.1 Preparatory work 231
copyright© Liebherr-Hydraulikbagger GmbH 2019
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Operator’s manual Contents
3.9.2 Driving machine onto low-loader 231
3.9.3 Lifting machine 232
3.9.4 Tying down machine 233
3.10 Emergency operation 235
3.10.1 Jump starting 235
3.10.2 Lowering working attachment when engine is shut off 236
3.10.3 Towing 236
3.10.4 Transmission 239
4 Malfunctions 241
4.1 Service code tables 241
4.1.1 Warning symbols 241
4.2 Fault – Cause – Remedy 248
4.2.1 Diesel engine and fuel system 248
4.2.2 Hydraulic system 251
4.2.3 Electrical system 252
4.2.4 Heating, ventilation and air conditioning unit 252
4.2.5 Working attachment 252
4.3 Problem remedy 254
4.3.1 Fuses and relays in the uppercarriage 254
4.3.2 Operator’s platform fuses and relays 260
5 Maintenance 267
5.1 Inspection and maintenance schedule 267
5.2 Filling quantities and lubrication chart 273
5.2.1 Filling quantities 273
5.2.2 Lubrication chart 274
5.3 Fuels, lubricants and operating fluids 278
5.3.1 General information about lubricants and fuels 278
5.3.2 Diesel fuels 278
5.3.3 Diesel exhaust fluids 279
5.3.4 Engine oils 280
5.3.5 Refrigerant 281
5.3.6 Coolant 282
5.3.7 Hydraulic oils 283
5.3.8 Axle oils 285
5.3.9 Gear oils 286
5.3.10 Transmission oils 286
5.3.11 Pump distributor gear oils 287
5.3.12 Greases 288
5.3.13 Windscreen washer fluid 288
5.3.14 Lubricants and care products for electrical and mechanical systems 289
5.4 Access points for maintenance work 290
5.4.1 Access points on uppercarriage 290
5.4.2 Access points under the uppercarriage 291
5.5 Preparing for maintenance 292
5.5.1 Maintenance procedures 292
5.5.2 Preparing for maintenance 293
5.5.3 Putting machine in maintenance position 295
5.6 General maintenance 296
5.6.1 Welding 296
5.6.2 Corrosion-proofing piston rods 296
5.6.3 Cleaning the machine 297
5.6.4 Cleaning the fan and radiator 299
5.7 Complete machine 300
5.7.1 Checking machine for proper condition and tightness 300
5.7.2 Lubricating bearings on machine and working attachment 304
5.7.3 Checking components for cracks 306
5.7.4 Lubricating hinges, locks and gas pressure springs of doors, hoods and
windows 307
5.7.5 Filling in sample data sheet 307
5.8 Drive group 313
5.8.1 Diesel engine: Bringing into maintenance position 313
5.8.2 Diesel engine: Checking oil level 313
5.8.3 Fuel pre-filter: Draining water 314
5.8.4 Fuel tank: Draining water and sediments 315
5.8.5 Air filter: Emptying dust collecting tank 317
5.8.6 Air filter: Replacing main filter cartridge 318
5.8.7 Air filter: Replacing safety filter cartridge 320
5.8.8 Pump distributor gear: Checking oil level 321
5.8.9 Diesel particulate filter: Activating and deactivating regeneration 322
5.9 Cooling system
5.9.1 Checking coolant level
5.9.2 Checking cooling system and heat exchanger for contamination and
cleaning
5.10 Working hydraulics
5.10.1 Depressurising hydraulic system
5.10.2 Hydraulic tank: Checking oil level
5.10.3 Hydraulic tank: Draining water and sediments
5.10.4 Return filter: Checking and cleaning magnetic rod
5.10.5 Bypass filter (option): Checking degree of contamination of filter
cartridge
5.11 Electrical system
5.11.1 General information
5.12 Axles
5.12.1 Lubricating axles
5.12.2 Tyres: Checking tyre pressure
5.12.3 Wheels: Checking mounting of wheel nuts
5.13 Working attachment
5.13.1 Lubricating working tool
5.13.2 Checking pin bearings for wear
5.14 Operator’s cab, heating and air conditioning
5.14.1 Filling with windscreen washer fluid
5.14.2 Heating: Checking function
5.14.3 Auxiliary heater (option): Checking function
5.14.4 Switching on air conditioning unit
5.14.5 Checking condenser for contamination and cleaning if necessary
5.15 Lubrication system
5.15.1 Lubrication system: Filling with grease
5.15.2 Checking lubrication of bearings (grease collar)
5.16 Slewing gearbox and slewing ring
5.16.1 Slewing gearbox: Checking oil level
Symbols on control description sticker
General symbols
A 924 Litronic – 1206 / 89588 llEBHERR 17
Contents Operator’s manual
6.1 Control changeover 356
6.1 Optional equipment 357
6.1 Working tools 357
6.1 Working attachment 359
6.1 Support 361
6.1 Height-adjustable cab 361
6.1 Wheeled excavator travel mode 362
6.1 Crawler excavator travel mode 362
6.1 Rail excavator travel mode 363
Index 365
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