Liebherr Wheel loaders L 550-1581 Service manual – PDF DOWNLOAD

Liebherr Wheel loaders L 550-1581 Service manual – PDF DOWNLOAD

FILE DETAILS:

Liebherr Wheel loaders L 550-1581 Service manual – PDF DOWNLOAD

Language : English
Pages :690
Downloadable : Yes
File Type : PDF
Size:138 MB

DESCRIPTION:

Liebherr Wheel loaders L 550-1581 Service manual – PDF DOWNLOAD

PrefaceNotes for users

• This service manual is designed for trained specialist staff of the Liebherr organisation and their dealers.
• This service manual contains specialist knowledge for repairing Liebherr construc- tion machines. Basic specialist knowledge on electronics, hydraulics, mechanics and engine technology is not contained in this service manual. Therefore special- ized training and qualifications are necessary. Liebherr recommends participating in the Liebherr training program for construction machines.

In this service manual you will find information on:

— Special tools— Technical data— Maintenance intervals and maintenance tasks— Adjustment procedures— Structure and function descriptions— Removal and installation tasks— Circuit diagrams, hydraulic plans and technical drawings

• You will find information on controls and operation in the operator’s manual. Information on spare parts are in the spare parts catalogue. Please observe the local accident prevention laws.
• You can find information on repairs of machine parts in the service documentation under “Wheel loader – repair instructions”.

Introduction:Intended Use:1.1. Laws, Rules, Guidelines and Safety Regulations

To ensure safe operation:

• Consult with the worksite manager about safety regulations at the place of use.
• Adhere to safety regulations at the place of use.
• Follow traffic regulations.
• Adhere to valid guidelines provided by insurers (for example, employers’ professional liability insurance companies, accident insurance, etc.).
• Avoid working methods that can endanger safety.
• Follow all intervals specified for recurrent checks and inspections as outlined in this operator’s manual.

1.2. Intended Use of Wheel Loader

The wheel loader is used to pick up, move, and dump the following materials:

• Soil
• Stones
• Broken rocks
• Bulk materials

This applies to a standard machine under normal operating conditions. Special applications are described in a separate options operator’s manual.

To ensure the intended use:

• Adhere to the operator’s manual.
• Follow maintenance intervals.
• Carry out inspection and maintenance tasks.
• Follow the specifications in the technical data.
• When using the machine on public roads, ensure it complies with applicable national regulations.
• Only lift loads with intended working attachments (fork prongs, crane boom), which must be properly fitted and functioning.
• Ensure that machines used underground (for mining and tunnel construction) are fitted with systems to reduce exhaust emissions (such as diesel particulate filters).
• Adhere to the requirements of each individual country for underground operation.
• For special uses, use special working attachments and, if necessary, special safety equipment.
• Exclusively mount and use special working attachments with approval and as per the stipulations of the manufacturer of the basic machine.

TABLE OF CONTENTS:

Liebherr Wheel loaders L 550-1581 Service manual – PDF DOWNLOAD

010 Introduction 010-1
010.1 Safety instructions 010-4
010.1.1 Information on these instructions 010-4
010.1.1.1 Representation of warning messages 010-4
010.1.1.2 Graphic symbols in these instructions 010-4
010.1.2 Intended use 010-5
010.1.2.1 Laws, rules, guidelines and safety regulations 010-5
010.1.2.2 Intended use 010-5
010.1.2.3 Foreseeable misuse 010-6
010.1.2.4 Operating conditions 010-6
010.1.2.5 Disposal 010-7
010.1.3 Description of staff 010-7
010.1.3.1 Personal protective equipment 010-7
010.1.3.2 Requirements for staff 010-8
010.1.3.3 Operating company 010-8
010.1.3.4 Operator 010-9
010.1.3.5 Maintenance staff 010-9
010.1.3.6 Refrigeration technician 010-10
010.1.3.7 Slinger 010-11
010.1.3.8 Spotter 010-12
010.1.4 Protective devices on the machine 010-12
C:
,!!?
Pl 010.1.4.1 Operator’s cab 010-12 ~
0 :;;, 010.1.4.2 Roll over protective structure (ROPS) 010-13 ui
0
0 “0 ‘ 010.1.4.3 Falling object protective structures (FOPS) 010-13
~
~ 010.1.5 Emergency equipment on the machine 010-13 iil
“…’
010.1.5.1 Emergency exit (standard) 010-13 …
“”” I~D 010.1.5.2 Fire extinguisher (option) 010-14
…J
010.1.6 Safe operation 010-14
010.1.6.1 Intoxicants 010-14
copylight © Liebherr-Werk Bischofshofen GmbH 2020
L509-1581 llEBHERR 5
Contents Service manual
010.1.6.2 Dangerous fuels and operating fluids 010-14
010.1.6.3 Transporting machine 010-15
010.1.6.4 Access to machine 010-15
010.1.6.5 Machine danger zone 010-16
010.1.6.6 Visibility 010-16
010.1.6.7 Protection against vibration 010-17
010.1.6.8 Operation of machine 010-18
010.1.7 Safe maintenance 010-21
010.1.7.1 Spare parts 010-21
010.1.7.2 Heavy parts 010-21
010.1.7.3 Regular checks 010-22
010.1.8 Modifications to the machine 010-22
010.1.8.1 Modifications, add-ons and retrofittings 010-22
010.2 Special tools for maintenance and repair work 010-23
010.2.1 Special tools, general 010-23
010.2.2 Special tools for diesel engine 010-25
010.2.3 Special tools for lift cylinders 010-26
010.2.4 Special tools for tilt cylinders 010-26
010.2.5 Special tools for steering wheel 010-27
010.2.6 Special tools for steering cylinders 010-27
010.2.7 Special tools for the electrical system 010-28
010.2.8 Special tools for front axle 010-29
010.2.9 Special tools for rear axle 010-30
010.2.10 Special tools for the air conditioning system 010-30
010.2.11 Special tools for cab glazing 010-32
010.2.12 Special tools for the central lubrication system (Liebherr) 010-32
010.3 Standards and regulations 010-33 C:
,!!?
Pl
010.3.1 Prestressing forces and tightening torques for bolts with metric ~
0
standard and fine threads as per DIN ISO 261 010-33
:;;,
co 0
0
010.3.1.1 Range of application and purpose 010-33 “0 ‘
~
010.3.1.2 Other applicable documents 010-33 ~
.i.i.,l.
010.3.1.3 Modifications and descriptions 010-34 …,.
“‘
010.3.1.4 Tightening torques 010-34 ~ ID
…J
010.3.2 Liebherr standards for assembly instructions and tightening torqueso10-40
010.4 Preservation guidelines 010-41
copylight © Liebherr-Werk Bischofshofen GmbH 2020
6 llEBHERR L509-1581
Service manual Contents
010.4.1 General information 010-41
010.4.2 Machine out of service for an unknown period of time 010-41
010.4.3 Putting the machine out of service 010-42
010.4.3.1 Out of service for up to 2 months 010-42
010.4.3.2 Out of service for up to 12 months 010-43
010.4.3.3 Out of service for longer than 12 months 010-44
010.4.4 Putting back into service 010-44
010.4.4.1 After being out of service for 2 months 010-44
010.4.4.2 After being out of service for 12 months 010-45
010.4.4.3 After being out of service for longer than 12 months 010-45
020 Technical data 020-1
020.1 Overall machine 020-4
020.1.1 Complete machine with bucket (z-bar kinematics)
L509-1581; 020-4
020.1.2 Working attachment: light material bucket
L509-1581; 020-5
020.1.3 Working attachment: 4 in 1 bucket
L509-1581; 020-6
020.1.4 Working attachment: forklift
L509-1581; 020-8
020.2 Drive group 020-10
020.2.1 Diesel engine
L509-1581/0-53994; 020-10
020.2.2 Diesel engine
L509-1581/53995-; 020-11
020.2.3 Fuel tank
L509-1581; 020-12
020.2.4 Fuel level sensor
L509-1581; 020-13
C: P,!!?l 020.3 Cooling system 020-14
~
0 :;;, 020.3.1 Fan pump
ui L509-1581; 020-14 0
0 “0 ‘ ~ 020.3.2 Fan motor
~ L509-1581; 020-14
iil
“……’ 020.3.3 Hydraulic oil temperature sensor B8
“”” L509-1581; 020-14 ~ ID …J 020.4 Working hydraulics 020-15
020.4.1 Working pump
L509-1581; 020-15
copylight © Liebherr-Werk Bischofshofen GmbH 2020
L509-1581 llEBHERR 7
Contents Service manual
020.4.2 Control block
L509-1581; 020-15
020.4.3 Pilot control unit
L509-1581; 020-15
020.4.4 Pilot control hydro accumulator
L509-1581; 020-15
020.4.5 Stabilisation module
L509-1581; 020-15
020.4.6 Ride control hydro accumulator
L509-1581; 020-16
020.4.7 Lift cylinder
L509-1581; 020-16
020.4.8 Tilt cylinder
L509-1581; 020-16
020.4.9 Working pump
L509-1581; 020-17
020.5 Travel hydraulics 020-18
020.5.1 Travel pump
L509-1581; 020-18
020.5.2 Travel pump high pressure sensor B45
L509-1581; 020-18
020.5.3 Travel motor
L509-1581; 020-18
020.6 Hydraulic components 020-20
020.6.1 Return suction filter
L509-1581; 020-20
020.6.2 Breather filter with filler strainer
L509-1581; 020-20
020.7 Steering system 020-21
020.7.1 Servostat
L509-1581; 020-21
020.7.2 Steering cylinder
L509-1581; 020-21
C:
020.8 Brake system 020-22 ,!!?
Pl
~
020.8.1 Drum brake 0 :;;,
L509-1581; 020-22 co 0
0 “0 ‘
020.8.2 Inch/brake unit ~
L509-1581; 020-22 ~
iil
020.8.3 Brake light pressure switch B12
…..,.. .,
L509-1581; 020-22 “‘ ~ ID
020.8.4 Spring accumulator cylinder for parking brake …J
L509-1581; 020-23
020.9 Electrical system 020-24
copylight © Liebherr-Werk Bischofshofen GmbH 2020
8 llEBHERR L509-1581
Service manual Contents
020.9.1 Central control unit (Master 4)
L509-1581; 020-24
020.9.2 Compact module
L509-1581; 020-24
020.9.3 Battery
L509-1581; 020-24
020.9.4 Voltage transformer
L509-1581; 020-25
020.10 Gearbox 020-26
020.10.1 Transmission
L509-1581; 020-26
020.11 Axles and drive shafts 020-27
020.11.1 Front axle
L509-1581; 020-27
020.11.2 Rear axle
L509-1581; 020-27
020.11.3 Drive shaft
L509-1581; 020-27
020.11.4 Tyres
L509-1581; 020-27
020.11.4.2 Special tyres 020-28
020.12 Working attachment 020-30
020.12.1 Quick coupler locking hydraulic cylinder
L509-1581; 020-30
020.13 Operator’s cab, heating and air conditioning 020-31
020.13.1 Dryer
L509-1581; 020-31
020.13.2 Pressure switches
L509-1581; 020-31
020.14 Lubrication system 020-32
020.14.1 Central lubrication pump EP1
L509-1581; 020-32
C: ,!!? 020.14.2 Progressive distributor
Pl
~ L509-1581; 020-32 0 :;;,
ui 020.14.2.1 MX-F 020-32
0
0 “0 ‘ ~ 020.14.2.2 MX-F 25 020-32
~ iil 020.14.2.3 MX-F 45 020-32
“……’
“”” 020.14.2.4 MX-F 75 020-33 ~ ID 020.14.2.5 MX-F105 020-33 …J
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L509-1581 llEBHERR 9
Contents Service manual
030 Maintenance 030-1
030.1 Maintenance and inspection schedule 030-9
030.2 Filling quantities and lubrication chart 030-14
030.2.1 Lubricant filling quantity
L509-1581; 030-14
030.2.2 Recommended operating fluids
L509-1581; 030-14
030.3 Lubricants and fuels 030-15
030.3.1 General information on lubricants and fuels 030-15
030.3.1.1 General questions 030-15
030.3.1.2 Safety data sheets 030-15
030.3.1.3 Technical data sheets 030-15
030.3.1.4 Specific Liebherr standards 030-15
030.3.2 General information on changing lubricants and fuels 030-15
030.3.3 Converting hydraulic system from mineral oils to biodegradable
hydraulic fluids 030-16
030.3.4 Diesel fuels
L509-1581/0-53994; 030-16
030.3.4.1 Minimum quality requirement 030-16
030.3.4.2 Operating temperatures of diesel fuels 030-16
030.3.4.3 Minimum quality requirement 030-17
030.3.5 Diesel fuels
L509-1581/53995-; 030-17
030.3.5.1 Minimum quality requirement 030-17
030.3.5.2 Operating temperatures of diesel fuels 030-17
030.3.5.3 Minimum quality requirement 030-17
030.3.6 Engine oils
L509-1581; 030-18
030.3.6.1 Liebherr recommendation 030-18
C:
030.3.6.3 Minimum quality requirement 030-18
,!!?
Pl
~
0
030.3.7 Refrigerant :;;,
L509-1581; 030-18 co 0
0 “0 ‘
030.3.8 Coolant ~
L509-1581; 030-19 ~
.ii,l
030.3.8.1 Requirements for the water used 030-19
…..,..
“‘
030.3.8.2 Antifreeze and corrosion inhibitor 030-19 ~ ID
…J
030.3.8.3 Minimum quality requirement 030-19
030.3.9 Hydraulic oil
L509-1581; 030-19
copylight © Liebherr-Werk Bischofshofen GmbH 2020
10 llEBHERR L509-1581
Service manual Contents
030.3.9.1 Liebherr recommendation 030-19
030.3.9.2 Minimum quality requirement 030-20
030.3.9.3 Oil analysis 030-20
030.3.9.4 Oil change 030-20
030.3.10 Transmission
L509-1581; 030-21
030.3.10.1 Liebherr recommendation 030-21
030.3.10.2 Minimum quality requirement 030-21
030.3.11 Axle oil
L509-1581; 030-21
030.3.11.1 Liebherr recommendation 030-21
030.3.11.2 Minimum quality requirement 030-21
030.3.12 Brake oil
L509-1581; 030-22
030.3.12.1 Liebherr recommendation 030-22
030.3.13 Lubrication grease
L509-1581; 030-22
030.3.13.1 Liebherr recommendation 030-22
030.3.13.2 Minimum quality requirement 030-22
030.4 Maintenance tasks 030-23
030.4.1 Safety precautions
L509-1581; 030-23
030.4.2 Preparatory tasks for maintenance 030-23
030.4.2.1 Maintenance positions
L509-1581; 030-24
030.4.2.2 Opening service hatches
L509-1581; 030-25
030.4.2.3 Turning off battery main switch
L509-1581; 030-26
030.4.3 Overall machine 030-27
C:
,!!? Pl 030.4.3.1 Checking machine is in proper condition
~
:0; ;, L509-1581; 030-27
ui 030.4.3.2 Removing loose parts, dirt, ice and snow from 0
0 “0 ‘ machine
~
~ L509-1581; 030-29
iil 030.4.3.3 Cleaning machine “……’
“”” L509-1581; 030-29 ~
ID 030.4.3.4 Replacing VCI capsules …J
L509-1581; 030-32
030.4.3.5 Oil analyses
L509-1581; 030-35
copylight © Liebherr-Werk Bischofshofen GmbH 2020
L509-1581 llEBHERR 11
Contents Service manual
030.4.4 Drive group 030-42
030.4.4.1 Checking diesel engine oil level
L509-1581; 030-42
030.4.4.2 Diesel engine: changing diesel engine oil
L509-1581; 030-43
030.4.4.3 Diesel engine: changing oil filter
L509-1581; 030-45
030.4.4.4 Diesel engine: checking V-belt
L509-1581; 030-47
030.4.4.5 Diesel engine: changing V-belt
L509-1581; 030-49
030.4.4.6 Checking diesel engine valve clearance
L509-1581; 030-50
030.4.4.7 Draining condensate and sediment from the fuel tank
L509-1581; 030-54
030.4.4.8 Draining off condensate from fuel pre-filter
L509-1581; 030-55
030.4.4.9 Changing fuel pre-filter element
L509-1581; 030-56
030.4.4.10 Changing fuel fine filter element
L509-1581; 030-57
030.4.4.11 Cleaning service cover and dust discharge valve of
air filter system
L509-1581; 030-59
030.4.4.12 Checking air filter vacuum switch function
L509-1581; 030-60
030.4.4.13 Cleaning or changing main element of air filter
system
L509-1581; 030-61
030.4.4.14 Changing safety element of air filter system
L509-1581; 030-64
030.4.4.15 Checking that diesel engine intake and exhaust
system is in good condition and not loose or leaking
L509-1581; 030-65
030.4.4.16 Cleaning or changing diesel particulate filter C:
,!!?
Pl L509-1581; 030-68 ~
0
030.4.5 Cooling system 030-74
:;;,
co 0
0 030.4.5.1 Checking coolant level in cooling system “0 ‘
~
L509-1581; 030-74 ~
030.4.5.2 Coolant: checking anti-freeze and corrosion protec.
i.i.,l. …
tion agent concentration
.,
“‘
L509-1581; 030-76 ~ ID
…J
030.4.5.3 Cleaning cooling system
L509-1581; 030-83
copylight © Liebherr-Werk Bischofshofen GmbH 2020
12 llEBHERR L509-1581
Service manual Contents
030.4.5.4 Changing coolant in cooling system
L509-1581; 030-84
030.4.6 Working hydraulics 030-87
030.4.6.1 Cleaning and lubricating the pilot control unit
L509-1581; 030-87
030.4.7 Hydraulic components 030-87
030.4.7.1 Checking oil level in hydraulic tank
L509-1581; 030-87
030.4.7.2 Draining off condensate and sediment from hydraulic
tank
L509-1581; 030-89
030.4.7.3 Changing the hydraulic tank return suction filter
cartridge
L509-1581; 030-90
030.4.7.4 Changing the hydraulic tank breather filter
L509-1581; 030-92
030.4.7.5 Hydraulic tank: changing oil
L509-1581; 030-92
030.4.8 Steering system 030-95
030.4.8.1 Steering: Checking the function
L509-1581; 030-95
030.4.8.2 Steering cylinder: lubricating bearing
L509-1581; 030-95
030.4.9 Brake system 030-96
030.4.9.1 Testing service brake and parking brake
L509-1581; 030-96
030.4.9.2 Checking the oil level in the brake system
L509-1581; 030-97
030.4.9.3 Checking gap and wear on service brake linings
L509-1581; 030-98
030.4.10 Electrical system 030-102
030.4.10.1 Checking function of lighting and horn
L509-1581; 030-102
C:
,!!? Pl 030.4.10.2 Checking battery fluid levels and terminals
~ L509-1581; 030-103 0 :;;,
ui 030.4.10.3 Control lever: Change the travel direction switch 0
0 “0 ‘ rocker and cap.
~
~ L509-1581; 030-105
iil 030.4.11 Gearbox 030-108 “……’
“”” ~ 030.4.11.1 Transmission: checking oil level
ID L509-1581; 030-108 …J
030.4.11.2 Changing transmission oil
L509-1581; 030-108
030.4.12 Axles and drive shafts 030-110
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L509-1581 llEBHERR 13
Contents Service manual
030.4.12.1 Checking axle oil levels
L509-1581; 030-110
030.4.12.2 Changing axle oil
L509-1581; 030-112
030.4.12.3 Lubricating rear axle kingpin bearings
L509-1581; 030-114
030.4.12.4 Checking fitting of rear axle kingpin bearings and
steering rod taper connections
L509-1581; 030-115
030.4.12.5 Checking tightening torque of front axle fastening
bolts
L509-1581; 030-116
030.4.12.6 Checking and lubricating drive shaft
L509-1581; 030-117
030.4.12.7 Tyres: checking tyre pressure
L509-1581; 030-118
030.4.12.8 Checking wheel tightness
L509-1581; 030-118
030.4.13 Steel parts of the basic machine 030-119
030.4.13.1 Lubricating articulated bearing
L509-1581; 030-119
030.4.13.2 Lubricating articulation stops
L509-1581; 030-120
030.4.13.3 Engine bonnet: lubricating moving parts with penetrating
oil
L509-1581; 030-120
030.4.13.4 Service hatches: cleaning and maintaining seals
L509-1581; 030-121
030.4.14 Working attachment 030-122
030.4.14.1 Lubricating the lift arms and working attachment
L509-1581; 030-122
030.4.14.2 Checking lift arm bucket bearing bushings
L509-1581; 030-123
030.4.14.3 Checking the lift arm bucket stops1581; 030-125 ID
030.4.15.3 Safety belt: checking condition and function
L509-1581; 030-126
030.4.15.4 Windscreen washer system: testing
L509-1581;
030.4.15.5 Windscreen washer system: filling windscreen
washer fluid
L509-1581;
030.4.15.6 Operator’s cab: lubricating locking mechanism and
cylinder with penetrating oil
L509-1581;
030.4.15.7 Operator’s cab: cleaning and maintaining seals
L509-1581;
030.4.15.8 Air conditioning: checking V-belt
L509-1581;
030.4.15.9 Air conditioning: changing V-belt
L509-1581;
030.4.15.10 Checking the indicator bead in the air conditioning
dryer-collector unit
L509-1581;
030.4.15.11 Heating and air conditioning unit: Testing function
L509-1581;
Lubrication system
030.4.16.1 Central lubrication system: checking level in grease
reservoir
L509-1581;
030.4.16.2 Central lubrication system: checking pipes, hoses
and lubrication points for leaks and damage.
L509-1581; 030-136
030.4.16.3 Central lubrication system: checking lubrication of
bearings
L509-1581; 030-137
030.5 Testing and adjustment checklist
L509-1581;
030.6 Testing and adjustment tasks
030.6.1 Safety precautions
Preparing for adjustment procedures
L509-1581;
Hydraulic oil and coolant: operating temperature
L509-1581;
Pedals: calibration
L509-1581;
Diesel engine speed
Service manual
Reading the diesel engine service files
L509-1581; 030-147
Performing a service regeneration on diesel particulate
filter
L509-1581; 030-149
Diesel engine: changing engine control unit (ECU)
L509-1581; 030-150
030.6.4 Cooling system 030-160
030.6.4.1 Fan motor: fan speed proportional solenoid
L509-1581; 030-160
030.6.5 Working hydraulics 030-163
030.6.5.1 Control valve block: secondary pressure relief valves
L509-1581; 030-163
030.6.5.2 Control valve block: primary pressure relief valve
L509-1581; 030-165
030.6.5.3 Control block: reduction of tilt-out speed (option)
L509-1581; 030-167
030.6.5.4 Stabilisation module (option), safety valve
L509-1581; 030-169
030.6.5.5 Ride control hydro accumulator (option): nitrogen
030.6.6 Hydraulic components 030-172
030.6.6.1 Checking the hydraulic lines for damage
L509-1581; 030-172
030.6.7 Travel hydraulics 030-177
Travel pump high pressure sensor B102: Deviation
L509-1581; 030-177
Travel pump replenishing pressure relief valve
L509-1581;
Travel pump: high pressure relief valves
Travel pump: pressure cut-off
Travel pump: manual block curve calibration (up to
software version 013, from software version 017)
Travel pump: manual block curve calibration (from
software version 014 to 016)
030.6.7.7 Travel pump: automatic block curve calibration (from
software version 020)
030.6.7.8 Travel motor: manual calibration (maximum swivel
angle)
L509-1581; 030-189
030.6.8 Brake system 030-191
030.6.8.1 Inching brake pedal: basic setting
L509-1581; 030-191
030.6.8.2 Angle sensor for inching function: checking basic
setting
L509-1581; 030-193
030.6.9 Electrical system 030-194
030.6.9.1 Central control unit (Master4) Creating a Servicefile
L509-1581; 030-194
030.6.9.2 Updating the central controller software
L509-1581; 030-197
030.6.9.3 Setting the IP addresses of the central control unit
(Master4)
L509-1581; 030-199
030.6.9.4 Resetting the central control unit (Master4)
L509-1581; 030-202
030.6.9.5 Addressing CAN module and checking system information
L509-1581; 030-203
030.6.10 Axles and drive shafts
040 Drive group
040.1 Engine
Tyres: setting radius
040. 1. 1 Diesel engine overview
040.1.2 Electrical components of diesel engine
040.1.3 Fuel system
Overview of fuel system
Fuel level sensor
Fuel pre-filter
Fuel fine filter
040.1.4 Air filter system
040.1.4.1 Air filter
Contents Service manual
040.1.4.2 Vacuum switch for air filter
L509-1581; 040-18
040.1.5 Exhaust system 040-18
040.1.5.1 Overview of diesel particulate filter
L509-1581; 040-19
050 Cooling system 050-1
050.1 Overview of cooling system
L509-1581; 050-2
050.2 Cooling system hydraulics 050-3
050.2.1 Overview of cooling system hydraulics
L509-1581; 050-3
050.2.2 Fan pump
L509-1581; 050-6
050.2.3 Fan motor
L509-1581; 050-7
050.3 Cooling system electronics 050-9
050.3.1 General overview of electronic control system
L509-1581; 050-9
050.3.2 Hydraulic oil temperature sensor
L509-1581; 050-12
050.4 Cooler 050-14
050.4.1 Cooler unit
L509-1581; 050-14
050.5 Reversible fan drive 050-15
050.5.1 Overview of reversible fan drive
L509-1581; 050-15
050.5.2 Fan reversal valve block
L509-1581; 050-18
060 Working hydraulics 060-1
060.1 Overview of working hydraulics
060.4.1 Overview of pilot control unit ~ ID
L509-1581; 060-20 …J
060.4.2 Pilot control unit
L509-1581; 060-24
copylight © Liebherr-Werk Bischofshofen GmbH 2020
18 llEBHERR L509-1581
Service manual Contents
060.4.3 Pilot pressure for solenoid valve
L509-1581; 060-26
060.5 Ride control 060-28
060.5.1 Overview of ride control system
L509-1581; 060-28
060.5.2 Stabilisation module
L509-1581; 060-32
060.6 Regulated flow rate 060-37
060.6.1 Regulated flow rate: total overview
L509-1581; 060-37
060.6.2 Valve block for regulated flow rate
L509-1581; 060-39
060.7 Pipe break protection 060-41
060.7.1 Pipe break protection: overview
L509-1581; 060-41
060.7.2 Valve block for pipe break protection
L509-1581; 060-43
060.7.3 Solenoid valve for release of the ride control
L509-1581; 060-44
060.8 High flow 060-46
060.8.1 High Flow: total overview
L509-1581; 060-46
060.8.2 High Flow pump
L509-1581; 060-49
060.8.3 Solenoid valve for High Flow
L509-1581; 060-50
070 Travel hydraulics 070-1
070.1 Overview of travel hydraulics
Hydraulic components 080-1
080.1 Hydraulic system: overview
080.2 Hydraulic tank 080-4
080.2.1 Overview of the hydraulic tank
L509-1581; 080-4
copylight © Liebherr-Werk Bischofshofen GmbH 2020
L509-1581 llEBHERR 19
Contents Service manual
080.2.2 Return suction filter
L509-1581; 080-6
080.2.3 Breather filter
L509-1581; 080-12
090 Steering system 090-1
090.1 Steering system overview
L509-1581; 090-2
090.2 Servostat
L509-1581; 090-6
100 Brake system 100-1
100.1 Overview of brake system
L509-1581; 100-2
100.2 Service brake and parking brake 100-6
100.2.1 Drum brake
L509-1581; 100-6
100.3 Service brake 100-11
100.3.1 Inch/brake unit
L509-1581; 100-11
100.3.2 Inching function angle sensor
L509-1581; 100-12
100.3.3 Brake light pressure switch
L509-1581; 100-14
100.4 Parking brake 100-16
100.4.1 Parking brake solenoid valve
L509-1581; 100-16
100.4.2 Spring accumulator cylinder for parking brake
L509-1581; 100-17
110 Electrical system 110-1
110.1 Overview of electrical system
L509-1581; 110-2 C:
Compact module: overview
L509-1581;
Compact module
L509-1581;
110.5 Electrical components of the driver’s cab
110.5.1 Fuse boards
L509-1581;
110.5.2 Door contact switch
L509-1581;
110.6 Electrical components in the rear section
110.6.1 Battery installation
L509-1581;
120 Gearbox
120.1 Overview of transmission
L509-1581;
120.2 Transmission electronics
120.2.1 Output speed sensor
L509-1581;
130 Axles and drive shafts
130.1 Axles
130. 1. 1 Front axle
L509-1581;
130.1.2 Rear axle
L509-1581;
130.2 Cardan shafts
130.2.1 Drive shaft
L509-1581;
140 Steel parts of the basic machine
140.1 Vehicle frame
140.1.1 Articulation bearing
L509-1581;
140.1.2 Articulation lock
L509-1581;
150 Working attachment
150.1 Lift arms for Z kinematics
150.1.1 Lift arms for Z kinematics
L509-1581;
150.2 Quick coupler
Contents Service manual
150.2.1 Quick coupler
L509-1581; 150-4
150.2.2 Quick coupler hydraulics 150-5
150.2.2.1 Overview of quick coupler hydraulics
L509-1581; 150-6
150.2.2.2 Open solenoid valve for quick coupler
L509-1581; 150-8
160 Operator’s cab, heating and air conditioning 160-1
160.1 Overview of operator’s cab, heating and air conditioning unit
L509-1581; 160-2
160.2 Display and control elements 160-4
160.2.1 Display
L509-1581; 160-4
160.2.2 Control lever
L509-1581; 160-4
160.2.3 Accelerator pedal
L509-1581; 160-6
160.3 Heating, ventilation, air conditioning 160-8
160.3.1 Overview of heating, ventilation and air conditioning system
L509-1581; 160-8
160.3.2 Heating and air conditioning unit 160-14
160.3.2.1 Heating and air conditioning unit
L509-1581; 160-14
160.3.2.2 Blower
L509-1581; 160-17
160.4 Air conditioning 160-18
160.4.1 Air conditioning (optional)
L509-1581; 160-18
160.4.2 Compressor magnetic coupling
L509-1581; 160-19
160.4.3 Air conditioning condenser
170.1.1 Automatic central lubrication system: overview
Service manual
170.1.2 Central lubrication pump EP-1
170.1.3 Progressive distributor MX-F
190 Options
190.1 LiDAT
190. 1. 1 Overview of LiDAT
190.1.2 LiDAT on machine
200 Diagnosis
200.1 Malfunctions
200.1.1 Warning symbols
200.1.2 Warning symbols
200.1.3 Service code indicator in the display
200.2 Troubleshooting
200.2.1 Replacing fuses
200.2.1.1
200.2.1.2
Fuses on the fuse board in the cab
Fuses in right of engine compartment