Liebherr Hydraulic excavator ER 974 B Operating instructions Manual 27666 – PDF DOWNLOAD
FILE DETAILS:
Liebherr Hydraulic excavator ER 974 B Operating instructions Manual 27666 – PDF DOWNLOAD
Language : English
Pages :193
Downloadable : Yes
File Type : PDF
Size: 5.51 MB
DESCRIPTION:
Liebherr Hydraulic excavator ER 974 B Operating instructions Manual 27666 – PDF DOWNLOAD
Introduction
This operating manual has been specifically designed for machine operators and maintenance personnel. It contains important warnings, information, and tips regarding the maintenance and proper operation of the machine. It assists you in becoming familiar with the functions and features of the machine and helps prevent incorrect operation.
- By strictly adhering to the instructions in the operating manual, you can significantly enhance the reliability and service life of the machine.
- The operating manual is an integral part of the machine. Ensure that a copy is always available in the storage compartment in the operator’s cab.
- Carefully read the operating manual before starting the machine and then regularly read it again. All persons carrying out work on or with the machine must be fully familiar with the content of the operating manual and must adhere to the instructions.
Such work includes:
- Machine operation, including tooling, troubleshooting during work, general care and cleaning, disposal of fuels and lubricants.
- Maintenance, including inspection, servicing, and repair.
- Transport or loading of the machine.
The machine owner must ensure that this operating manual is complemented with the relevant statutory regulations for accident prevention and the protection of the environment. Apart from the instructions in this operating manual and the statutory accident prevention, health and safety regulations applicable in the country of operation, all personnel working on or with the machine must adhere to the best practices for safe and proper operation.
- Certain sections in this manual might not apply to your specific model.
- Some of the figures in this operating manual might show details or equipment that differ from those in your machine.
- Some of the figures show the equipment with guards or covers removed (for better depiction).
- As our products are constantly being improved, certain changes might be made to the equipment that are not referred to specifically in this operating manual.
- Should you require additional information or if you have any queries, please contact the LIEBHERR customer service department.
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
Liebherr Hydraulic excavator ER 974 B Operating instructions Manual 27666 – PDF DOWNLOAD
1 Product description 1-1
1 1 Assembly – overview 1-1
1 1 1 Basic machine 1-1
1 1 2 Machine with bottom dump shovel attachment 1-2
1 1 3 Undercarriage 1-2
1 2 Vibration emissions 1-3
1 3 Sound emission 1-4
1 4 EC Declaration of Conformity 1-5
1 5 Technical data 1-6
2 Safety instructions, Signs on the machine 2-1
2 1 Meaning of the symbols in this manual 2-1
2 2 Use in accordance with the regulations 2-2
2 3 Safety instructions for electric excavators 2-2
2 4 Safety Instructions 2-4
2 5 Servicing the machine safely 2-16
2 6 Seeing and being seen 2-21
2 7 Signs on the machine 2-22
2 7 1 Types of signs 2-22
2 7 2 Arrangement of signage 2-23
2 7 3 Explanation of signage 2-24
3 Control and operation 3-1
3 1 Operating and control elements 3-1
3 1 1 Controls in the operators cab 3-1
3 1 2 Control and instrument panel 3-2
3 2 Access and equipment of the cab 3-8
3 2 1 Entering or leaving the cab 3-8
3 2 2 Safety lever 3-10
3 2 3 Operator seat 3-10
3 2 4 Putting on and releasing the safety belt 3-14
3 2 5 Windscreen 3-14
3 2 6 Sunshade 3-15
3 2 7 Emergency exit – rear window 3-16
3 2 8 Interior lights 3-16
3 2 9 Fire extinguisher 3-16
3 2 10 Visual aids (exterior mirrors, camera) 3-17
3 2 11 The heating and airconditioning plants 3-19
3 2 12 Additional standstill heater (Option) 3-21
3 2 13 Additional heaters for operation down to -40°C (-40°F) 3-21
3 3 Setting the machine into operation 3-22
3 3 1 Before starting the machine 3-22
3 3 2 Turning the electrical installation on 3-23
3 3 3 Starting the electric motor 3-25
3 3 4 Shutting the electric motor down 3-26
3 3 5 Turning the electrical installation off 3-26
3 4 Working with the machine 3-28
3 4 1 The travel movements 3-28
3 4 2 Drive warning device (optional extra) 3-31
3 4 3 The uppercarriage swing movements 3-31
3 4 4 Working position 3-33
3 4 5 Working attachment control 3-34
3 4 6 Lowering the working attachment with the engine shut down 3-35
3 4 7 Control of additional attachments via the additional pedals 3-35
Operating instructions
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MJFCIFSS
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3 4 8 Special control system of the joysticks (Option) 3-36
3 4 9 Use of the excavator for lifting loads overhead 3-37
3 4 10 Overload warning system (option) 3-38
3 5 Safety modes 3-42
3 5 1 Lowering working attachment 3-42
3 5 2 Electrical life saving kit 3-42
3 6 Recovering, towing the machine 3-44
3 6 1 Towing with the machine, emergency towing of the machine 3-44
3 7 Installation and removal of attachment parts 3-45
3 7 1 Removal and installation of a bucket 3-45
3 7 2 Attaching and dismounting the bucket with improved sealing 3-47
3 7 3 Attaching and dismounting the grab on stick 3-49
3 7 4 Attaching and dismounting the stick to the boom 3-51
3 8 Working methods 3-53
3 8 1 Minimum impact working methods for your machine 3-53
3 8 2 Preparatory activities 3-54
3 8 3 Using a backhoe bucket 3-55
3 8 4 Loading a transport vehicle 3-56
3 8 5 Skimming 3-57
3 8 6 Using a clamshell bucket (earthmoving attachment) 3-58
3 8 7 Using a multiple tine grapple (industrial attachment) 3-60
3 8 8 Using an hydraulic hammer 3-61
3 8 9 Working with a bottom dump bucket 3-62
3 9 Installing and removing the counterweight 3-64
3 9 1 Installing the lifting accessories on the counterweight 3-64
3 9 2 Removing the counterweight 3-65
3 9 3 Installing the counterweight 3-65
3 10 Transport 3-66
3 10 1 Transporting the excavator on flatbed trailers 3-66
3 10 2 Loading the machine with a crane 3-68
4 Troubleshooting 4-1
4 1 Error charts 4-1
4 1 1 Operating errors indicated by the control lights on the main control board 4-1
4 1 2 Power cable 4-2
4 2 Fuses, circuit breakers and relays 4-3
4 2 1 24 Volt power box E43 with main circuit breakers 4-3
4 2 2 Circuit breakers in the left control console 4-4
4 2 3 Circuit breakers on the right control console 4-5
5 Maintenance 5-1
5 1 Maintenance access doors 5-1
5 1 1 Door retaining rods 5-1
5 1 2 Opening, closing, locking the engine hood 21 5-2
5 2 Cleaning machine 5-3
5 3 Care for rubber components 5-3
5 4 Lubricants and fluids 5-4
5 4 1 General information 5-4
5 4 2 Lubrication chart 5-5
5 4 3 Lubricants chart 5-6
5 4 4 Operating material chart 5-7
5 5 Lubricants and fluids specification 5-7
5 5 1 Hydraulic oil 5-7
5 5 2 Lubricants for gearboxes 5-13
5 5 3 Grease 5-14
5 5 4 Lubricants and care products for electrical and mechanical components 5-15
5 6 Electric motor 5-15
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5 6 1 Lubrication of the motor bearings 5-15
5 6 2 Checking the resistance values of the electrical motor 5-16
5 6 3 Check of the mounting bolts of the motor bedding 5-17
5 6 4 Rubber elements of the motor mounts 5-17
5 7 Hydraulic system 5-18
5 7 1 Depressurizing the hydraulic system 5-18
5 7 2 Checking the oil level, emptying and refilling the hydraulic tank 5-19
5 7 3 Checking and cleaning the oil cooler system 5-21
5 7 4 Return filter 5-22
5 7 5 Servofilter 5-23
5 7 6 Replenishing oil filter in swing circuit 5-24
5 7 7 Servo control circuit 5-25
5 7 8 Bleeding the hydraulic pumps 5-25
5 7 9 Bleeding the hydraulic cylinders 5-26
5 7 10 Removing the suction hose to the pumps 5-28
5 7 11 Breather filter on the hydraulic tank 5-29
5 7 12 Bypass oil filter for hydraulic system (option) 5-29
5 7 13 High pressure filters in working circuit 5-31
5 7 14 Servicing the hydraulic cylinder 5-32
5 7 15 Replacing hydraulic hoses 5-33
5 8 Oil changes on components 5-34
5 8 1 General information 5-34
5 8 2 Swing gear – Oil level check and oil change 5-35
5 8 3 Travel gear oil change 5-36
5 8 4 Splitterbox – Oil change 5-37
5 9 The track components 5-37
5 9 1 Checking the mounting screws of the track components 5-38
5 9 2 Checking the track chains tension 5-38
5 9 3 Retensioning the track 5-40
5 9 4 Releasing the track chain tension 5-40
5 9 5 Cleaning the track components 5-41
5 10 Electrical installation 5-42
5 10 1 Low and high voltage circuit 5-42
5 10 2 High voltage circuits 5-43
5 10 3 Rotating collector 5-44
5 10 4 Connection box 5-46
5 11 24 V circuit 5-46
5 11 1 General checks on the 24 V electrical system 5-46
5 11 2 Batteries care 5-47
5 11 3 Batteries switch 5-48
5 11 4 Protection of the 24 V circuit during maintenance works 5-48
5 12 Cab 5-49
5 12 1 Cab pressuring system (option) 5-49
5 13 Greasing the machine 5-49
5 13 1 The centralized lubrication system 5-49
5 13 2 Operation of the automatic system 5-51
5 13 3 Refilling the grease containers 5-53
5 13 4 Changes in the lubrication circuit 5-54
5 14 Manual greasing of the machine 5-54
5 14 1 Lubrication of the swing gear bearing 5-55
5 14 2 Lubrication of the attachment 5-55
5 14 3 Greasing the grab (optional extra) 5-55
5 15 Check mounting bolts for tightness 5-56
5 15 1 Mounting bolts of the counterweight 5-57
5 15 2 Mounting screws of the swing ring 5-57
5 15 3 Mounting screws of the hydraulic oil and fuel tank 5-58
5 15 4 Mounting bolts of the swing gear and motor 5-58
5 15 5 Mounting bolts central piece to side frames (option “removable side frames”) 5-58
Operating instructions
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5 15 6 Fixing bolts of catwalks around the upperstructure 5-59
5 16 Drive unit brakes and swing gear brakes 5-59
5 17 General maintenance points 5-60
5 17 1 Replacing working parts 5-60
5 17 2 Checking or replacing the teeth on the bucket 5-60
5 17 3 Welding work on the machine 5-62
5 18 Maintenance chart 5-62
VIDEO PREVIEW OF THE MANUAL:
PLEASE NOTE:
- This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
- Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.
S.M
