Liebherr Wheeled excavator A 924 Litronic Operator’s manual – PDF DOWNLOAD
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Liebherr Wheeled excavator A 924 Litronic Operator’s manual – PDF DOWNLOAD
Language : English
Pages : 460
Downloadable : Yes
File Type : PDF
Size: 98.1 MB
DESCRIPTION:
Liebherr Wheeled excavator A 924 Litronic Operator’s manual – PDF DOWNLOAD
Product ID
Manufacturer: Liebherr-Hydraulikbagger GmbH
Type: A 924 Litronic
Type no.: 1206 (USA / CAN)
From Serial no.: 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 – PDF DOWNLOAD
1 Product description 17
1.1 Technical description 17
1.1.1 General overview 17
1.2 Technical data 18
1.2.1 Vibration emission 18
1.2.2 CO2 emissions of diesel engine 18
1.2.3 Sound level 20
1.2.4 Specifications 21
1.3 Warranty conditions 22
1.3.1 Additional information, USA 22
1.3.2 Warranty declaration, emission limits, warranty rights and obligations 22
1.3.3 Warranty coverage from manufacturer 22
1.3.4 Warranty obligations of the owner 23
1.3.5 Warranty 23
1.3.6 Warranty parts 23
1.3.7 Exclusions 24
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
copyright© Liebherr-Hydraulikbagger GmbH 2019
A 924 Litronic – 1206 (USA / CAN) / 89588 llEBHERR 7
Contents Operator’s manual
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
2.4 Signs on the machine 35
2.4.1 Safety signs (USA) 35
2.4.2 Information signs 38
2.4.3 Identification tag (USA) 42
2.5 Protective devices on the machine 42
2.5.1 Safety lever or folding console 42
2.5.2 Operator’s cab 42
2.5.3 Roll over protective structure (ROPS) 43
2.5.4 Falling object protective structures (FOPS and FGPS) 43
2.6 Emergency equipment on the machine 44
2.6.1 Emergency exit (standard) 44
2.6.2 Fire extinguisher (option) 44
2.6.3 Emergency command devices of machine 44
2.6.4 Emergency stop function of machine 45
2.7 Safe operation 45
2.7.1 Intoxicants 45
2.7.2 Dangerous fuels and operating fluids 45
2.7.3 Transporting machine 46
2.7.4 Access to machine 46
2.7.5 Machine danger zone 47
2.7.6 Visibility 47
2.7.7 Protection against vibration 48
2.7.8 Operation of machine 49
2.7.9 Load-lifting work 52
2.7.10 Demolition work 52
2.8 Safe maintenance 53
2.8.1 Spare parts 53
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Operator’s manual Contents
2.8.2 Heavy parts 53
2.8.3 Regular checks 53
2.9 Modifications to the machine 54
2.9.1 Modifications, add-ons and retrofittings 54
3 Control and operation 55
3.1 Control and operating elements 55
3.1.1 Overview of operator’s platform 55
3.1.2 Control unit A 56
3.1.3 Control unit B 57
3.1.4 Control unit C 57
3.1.5 Further control units 58
3.1.6 Symbols on control description sticker 58
3.1.7 General symbols 58
3.1.8 Control changeover 59
3.1.9 Optional equipment 60
3.1.10 Working tools 60
3.1.11 Working attachment 62
3.1.12 Support 63
3.1.13 Height-adjustable cab 64
3.1.14 Wheeled excavator travel mode 64
3.1.15 Crawler excavator travel mode 65
3.1.16 Rail excavator travel mode 65
3.2 Display 66
3.2.1 Display 66
3.2.2 Status symbols 67
3.2.3 Start page menu 80
3.2.4 Camera menu 81
3.2.5 Automatic heating and automatic ventilation 82
3.2.6 Automatic air conditioning 86
3.2.7 Operating status menu 89
3.2.8 Diesel particulate filter submenu (option) 90
3.2.9 Sensor-controlled low idle automatic and automatic engine stop
submenu (option) 91
3.2.10 System settings menu 92
copyright© Liebherr-Hydraulikbagger GmbH 2019
A 924 Litronic – 1206 (USA / CAN) / 89588 llEBHERR 9
Contents Operator’s manual
3.2.11 Operating hour meter and odometer submenu 93
3.2.12 Windscreen wiper interval submenu 93
3.2.13 Radio remote control submenu 94
3.2.14 Display settings submenu 95
3.2.15 Display brightness and display volume submenu 95
3.2.16 Camera image contrast submenu 96
3.2.17 Camera return time submenu 96
3.2.18 Regional settings and system parameters submenu 97
3.2.19 Unit selection submenu 97
3.2.20 System diagnosis submenu 98
3.2.21 Time zone submenu 98
3.2.22 Time format and date format submenu 99
3.2.23 Language selection submenu 99
3.2.24 Electrical outputs submenu 100
3.2.25 Electrical inputs submenu 101
3.2.26 Function settings menu 101
3.2.27 Central lubrication system submenu (option) 103
3.2.28 Maintenance submenu 103
3.2.29 SF submenu 105
3.2.30 User profile submenu 107
3.2.31 Stick cylinder shut-off and hoist cylinder shut-off submenu (option) 108
3.2.32 Workspace limitation submenu (option) 108
3.2.33 Automatic reversible fan drive submenu (option) 109
3.2.34 Comfort slewing brake submenu (option) 110
3.2.35 Bleeding hydraulic circuit submenu 110
3.2.36 Information menu 111
3.2.37 Operating time submenu 112
3.2.38 Fuel consumption submenu 112
3.2.39 Key assignment submenu 113
3.2.40 Tool Control menu 113
3.2.41 Service codes menu 114
3.3 Control 116
3.3.1 Battery main switch 116
3.3.2 Entering and exiting machine 117
3.3.3 Emergency exit 119
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Operator’s manual Contents
3.3.4 Fire extinguisher (option) 119
3.3.5 Folding console 120
3.3.6 Operator’s seat 121
3.3.7 Safety belt 129
3.3.8 Steering wheel 130
3.3.9 Ignition key 131
3.3.10 Confirmation button 131
3.3.11 Horn 132
3.3.12 Windscreen 133
3.3.13 Sun blind 135
3.3.14 Viewing devices 136
3.3.15 Lighting 142
3.3.16 Cab lighting system 143
3.3.17 Windshield wipers 144
3.3.18 Windscreen washer system 144
3.3.19 Auxiliary heater (option) 145
3.3.20 LiDAT (option) 145
3.4 Operation 147
3.4.1 Inspection tour before putting into service 147
3.4.2 Refuelling 148
3.4.3 Refuelling with electric refuelling pump (option) 148
3.4.4 Topping up diesel exhaust fluid 150
3.4.5 Immobiliser (option) 150
3.4.6 Preparing machine for dust intensive application 152
3.4.7 Preparing machine for use in biologically sensitive areas 152
3.4.8 Starting diesel engine 153
3.4.9 Bringing machine to operating temperature 153
3.4.10 Engine speed and operating mode 154
3.4.11 After starting 156
3.4.12 Sensor-controlled low idle automatic 157
3.4.13 Automatic engine stop after idling (option) 157
3.4.14 Shutting off diesel engine 158
3.4.15 Shutting off diesel engine in an emergency 159
3.4.16 Travelling and braking 159
3.4.17 Speed controller 162
copyright© Liebherr-Hydraulikbagger GmbH 2019
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Contents Operator’s manual
3.4.18 Automatic service brake 163
3.4.19 Joystick steering 165
3.4.20 Travel alarm (option) 166
3.4.21 Ride control (option) 167
3.4.22 Locking and unlocking oscillating axle 169
3.4.23 Supporting machine 171
3.4.24 Controlling working attachment 173
3.4.25 Turning and braking uppercarriage 175
3.4.26 Slewing brake 176
3.4.27 Positioning slewing brake 181
3.4.28 Selecting boom or working tool 181
3.4.29 Laterally adjusting boom 182
3.4.30 Selecting the working tool 182
3.4.31 Controlling special working attachment with mini-joystick 183
3.4.32 Using working tool in continuous mode (option) 184
3.4.33 Changing over control of right mini-joystick (option) 186
3.4.34 PowerLift 187
3.4.35 Reversible fan drive for radiator cleaning (option) 188
3.5 Shut-off functions 191
3.5.1 Stick cylinder shut-off (option) 191
3.5.2 Hoist cylinder shut-off (option) 194
3.5.3 Height limitation 198
3.5.4 Overload warning system (option) 207
3.6 General working methods 210
3.6.1 Working without damaging the machine 210
3.6.2 Putting machine in working position 211
3.6.3 Travelling at operating location 212
3.6.4 Travelling with load at operating location 213
3.6.5 Driving on public roads 214
3.6.6 Working with backhoe bucket 218
3.6.7 Flattening the ground 220
3.6.8 Working with hydraulic hammer 221
3.6.9 Handling loads 223
3.6.10 Loading transport vehicle 223
3.6.11 Lifting loads 224
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Operator’s manual Contents
3.6.12 Lifting loads with quick coupler 225
3.6.13 Driving technique 226
3.6.14 Use of banksmen 226
3.7 Installing and removing working attachment 227
3.7.1 Using quick coupler 227
3.8 Parking machine 228
3.9 Transport 229
3.9.1 Preparatory work 229
3.9.2 Driving machine onto low-loader 229
3.9.3 Lifting machine 230
3.9.4 Tying down machine 231
3.10 Emergency operation 233
3.10.1 Jump starting 233
3.10.2 Lowering working attachment when engine is shut off 234
3.10.3 Towing 234
3.10.4 Transmission 237
4 Malfunctions 239
4.1 Service code tables 239
4.1.1 Warning symbols 239
4.2 Fault – Cause – Remedy 246
4.2.1 Diesel engine and fuel system 246
4.2.2 Hydraulic system 249
4.2.3 Electrical system 250
4.2.4 Heating, ventilation and air conditioning unit 250
4.2.5 Working attachment 250
4.3 Problem remedy 252
4.3.1 Fuses and relays in the uppercarriage 252
4.3.2 Operator’s platform fuses and relays 258
5 Maintenance 265
5.1 Inspection and maintenance schedule 265
5.2 Filling quantities and lubrication chart 271
5.2.1 Filling quantities 271
5.2.2 Lubrication chart 273
copyright© Liebherr-Hydraulikbagger GmbH 2019
A 924 Litronic – 1206 (USA / CAN) / 89588 llEBHERR 13
Contents Operator’s manual
5.3 Fuels, lubricants and operating fluids 277
5.3.1 General information about lubricants and fuels 277
5.3.2 Diesel fuels 277
5.3.3 Diesel exhaust fluids 278
5.3.4 Engine oils 279
5.3.5 Refrigerant 280
5.3.6 Coolant 281
5.3.7 Hydraulic oils 282
5.3.8 Axle oils 284
5.3.9 Gear oils 285
5.3.10 Transmission oils 285
5.3.11 Pump distributor gear oils 286
5.3.12 Greases 287
5.3.13 Windscreen washer fluid 287
5.3.14 Lubricants and care products for electrical and mechanical systems 288
5.4 Access points for maintenance work 289
5.4.1 Access points on uppercarriage 289
5.4.2 Access points under the uppercarriage 290
5.5 Preparing for maintenance 291
5.5.1 Maintenance procedures 291
5.5.2 Preparing for maintenance 292
5.5.3 Putting machine in maintenance position 294
5.6 General maintenance 295
5.6.1 Welding 295
5.6.2 Corrosion-proofing piston rods 295
5.6.3 Cleaning the machine 296
5.6.4 Cleaning the fan and radiator 298
5.7 Complete machine 299
5.7.1 Checking machine for proper condition and tightness 299
5.7.2 Lubricating bearings on machine and working attachment 303
5.7.3 Checking components for cracks 305
5.7.4 Lubricating hinges, locks and gas pressure springs of doors, hoods and
windows 306
5.7.5 Filling in sample data sheet 306
5.8 Drive group 312
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Operator’s manual Contents
5.8.1 Diesel engine: Bringing into maintenance position
5.8.2 Diesel engine: Checking oil level
5.8.3 Fuel pre-filter: Draining water
5.8.4 Fuel tank: Draining water and sediments
5.8.5 Air filter: Emptying dust collecting tank
5.8.6 Air filter: Replacing main filter cartridge
5.8.7 Air filter: Replacing safety filter cartridge
5.8.8 Pump distributor gear: Checking oil level
5.8.9 Diesel particulate filter: Activating and deactivating regeneration
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
Contents Operator’s manual
5.15.1 Lubrication system: Filling with grease 349
5.15.2 Checking lubrication of bearings (grease collar) 350
5.16 Slewing gearbox and slewing ring 351
5.16.1 Slewing gearbox: Checking oil level 351
6 Appendix 353
6.1 Symbols on control description sticker 353
6.1 General symbols 353
6.1 Control changeover 354
6.1 Optional equipment 355
6.1 Working tools 355
6.1 Working attachment 357
6.1 Support 359
6.1 Height-adjustable cab 359
6.1 Wheeled excavator travel mode 360
6.1 Crawler excavator travel mode 360
6.1 Rail excavator travel mode 361
Index
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