Liebherr R924 Excavator Operators Operating Manual

en

Operating manual Hydraulic excavator R 924 Compact Tier III from serial number 27686

Document identification ORIGINAL OPERATING MANUAL Order number:

10360022

edition:

12 / 2010

Valid for:

R 924 Compact Tier III from serial number 27686

Author:

LFR - Technical documentation department

LFR/en/edition: 12 / 2010

Product identification Manufacturer:

LIEBHERR France S.A.S.

Type:

R 924 Compact Tier III

Type no.:

1055 / 1056

Conformity:

CE

Address Liebherr France S.A.S. 2 avenue Joseph Rey B.P 90287 F - 68005 Colmar Cedex

Operating manual

Machine data Please fill in the following data when you receive your machine.

This will also be of use to you when ordering replacement parts.

Vehicle ident. number: WLHZ . . . . . ZK . . . . . .

Construction year: . . . .

First start-up date:

LFR/en/edition: 12 / 2010

. . / . . / . .

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R 924 Compact Tier III / 10360022

Operating instructions

Preface

These operating instructions have been written for the machine operator and for the maintenance personnel of the machine.

They contain: – the technical data.

– the safety requirements.

– the operating instructions.

– the maintenance instructions.

The operating instructions are to be read and used carefully by all persons who carry out work with or on the machine before putting the machine into service for the first time and later, at regular intervals.

Work with or on the machine includes, for example: – Operation including setting up and equipping, rectifying malfunctions during the course of work, resolving production dropouts, care, disposal of operating and process materials.

– Maintenance, including maintenance, inspection and repair work.

– Transportation or loading the machine.

The operating instructions allow the machine operator to familiarize himself with the machine more easily and prevent malfunctions occurring due to improper operation.

The observance of the operating and maintenance instructions by maintenance personnel: – increases reliability in use.

– extends the service life of your machine.

– reduces repair costs and downtime.

The operating instructions belong with the machine. Place a copy in an easily reached position on the cab storage shelf.

The operating and maintenance instructions should also incorporate information on current national regulations for accident prevention and protection. In addition to the operating instructions and legally binding regulations on accident prevention which apply in the user country and at point of use, authorized specialist rules for safe and correct working procedures are also to be observed.

These operating and maintenance instructions contain all the information required for operating and maintaining your machine.

LFR/en/Edition: 11 / 2010

– Some illustrations in these operating instructions may depict details and working devices which differ to your machine.

– In some illustrations, protective devices and covers have been removed in the interests of better presentation.

– Improvements, which are always being incorporated into our machines, may result in changes to your machine which are not yet indicated in these operating instructions.

However, should you require any further explanations or information, LIEBHERR's technical documentation, sales school and customer service departments are avail-

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Operating instructions

able for your convenience.

You will appreciate that LIEBHERR warranty claims made on the basis of improper operation, unsatisfactory maintenance, use of unauthorized operating materials or non-adherence to safety regulations cannot be recognized.

LIEBHERR will annul any and all obligations incurred by LIEBHERR and / or its dealerships, such as guarantee commitments, service contracts etc. without prior notice in the event that replacement parts other than original LIEBHERR parts or parts purchased from LIEBHERR are used for maintenance or repair work.

Modifications, conditions, copyright We reserve the right to make modifications without prior notice in the course of technical developments.

The information and illustrations contained in these operating instructions may neither be copied and distributed, nor used for the purposes of competition. All rights are expressly reserved in accordance with copyright laws.

LFR/en/Edition: 11 / 2010

The warranty and liability conditions of LIEBHERR’s general business conditions will not be enlarged upon through the above information.

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R 934 C with telescopic equipment / 10070206 Telescopic

Operating manual

1

Product description ....................................................................................................................................... 1-1 1.1

1.2 1.3 1.4 1.5 2

Safety instructions, Signs on the machine ................................................................................................. 2-1 2.1 2.2 2.3 2.4 2.5

3

Meaning of the symbols in this manual.................................................................................................. 2-1 Use in accordance with the regulations ................................................................................................. 2-2 Safety Instructions ................................................................................................................................. 2-2 Servicing the machine safely ............................................................................................................... 2-14 Signs on the machine .......................................................................................................................... 2-20 2.5.1 Introduction............................................................................................................................. 2-20 2.5.2 Arrangement of signage ......................................................................................................... 2-21 2.5.3 Explanation of signage ........................................................................................................... 2-23 2.5.4 Nameplates on the machine................................................................................................... 2-29

Control and operation ................................................................................................................................... 3-1 3.1

3.2

3.3 LFR/en/edition: 12 / 2010

Assembly - overview.............................................................................................................................. 1-1 1.1.1 Machine and construction equipment....................................................................................... 1-1 1.1.2 Machine for transferring material.............................................................................................. 1-3 1.1.3 Upper carriage.......................................................................................................................... 1-4 1.1.4 Undercarriage........................................................................................................................... 1-6 Vibration emissions................................................................................................................................ 1-6 Sound emission ..................................................................................................................................... 1-7 EC Declaration of Conformity ................................................................................................................ 1-8 Technical data ....................................................................................................................................... 1-8

Operating and control elements............................................................................................................. 3-1 3.1.1 Controls in the operator’s cab .................................................................................................. 3-1 3.1.2 The joysticks............................................................................................................................. 3-3 3.1.3 Control unit ............................................................................................................................... 3-8 3.1.4 Monitoring display .................................................................................................................. 3-13 3.1.5 Main screen (DISP02 R5.2 Software V4.57.X and V4.58.X).................................................. 3-16 3.1.6 Controls and instrumentation for optional equipments ........................................................... 3-36 3.1.7 Display for LIEBHERR particle filter (optional). ...................................................................... 3-40 The access and the outfit of the cab.................................................................................................... 3-41 3.2.1 Entering or leaving the cab..................................................................................................... 3-42 3.2.2 The safety lever ...................................................................................................................... 3-44 3.2.3 Operator’s seat ....................................................................................................................... 3-45 3.2.4 Windscreen ............................................................................................................................ 3-49 3.2.5 Sunshade ............................................................................................................................... 3-50 3.2.6 Emergency exit – rear window ............................................................................................... 3-50 3.2.7 Interior lighting ........................................................................................................................ 3-51 3.2.8 Fire extinguisher* ................................................................................................................... 3-51 3.2.9 Windscreen wiper ................................................................................................................... 3-52 3.2.10 Lighting ................................................................................................................................... 3-54 3.2.11 The heater and air conditioner ............................................................................................... 3-55 3.2.12 Additional standstill heater (Option) ....................................................................................... 3-60 Setting the machine into operation ...................................................................................................... 3-64 3.3.1 Starting / stopping the machine .............................................................................................. 3-66 3.3.2 Starting the engine ................................................................................................................. 3-68 3.3.3 Speed adjustment and operating modes................................................................................ 3-69 3.3.4 Notes after starting the engine ............................................................................................... 3-71 3.3.5 Warm-up phase for Diesel engine and hydraulic circuit ......................................................... 3-71 3.3.6 Switching the Diesel engine off .............................................................................................. 3-72 3.3.7 indicatorStarting aids .............................................................................................................. 3-73 3.3.8 Jump start procedure ............................................................................................................. 3-75 3.3.9 Anti-theft device with code key (option).................................................................................. 3-76 3.3.10 Immobilizer with electronic ignition key (option) ..................................................................... 3-76 3.3.11 Travel functions ...................................................................................................................... 3-78 3.3.12 Drive warning device (optional extra) ..................................................................................... 3-82

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Operating manual

3.5

3.6

3.7

3.8

3.9

4

Operating the excavator in safety modes ............................................................................................ 3-83 3.4.1 Board E52 for safety mode of Diesel engine & servo control ................................................. 3-83 3.4.2 Safety operation of the main working pumps ......................................................................... 3-86 Recovering, towing the machine.......................................................................................................... 3-86 3.5.1 Pre-requisite ........................................................................................................................... 3-87 3.5.2 Process preconisations. ......................................................................................................... 3-87 3.5.3 Other preconisations. ............................................................................................................. 3-88 3.5.4 With clevis type eylet available. .............................................................................................. 3-88 Working with the machine.................................................................................................................... 3-90 3.6.1 Low idle automatic .................................................................................................................. 3-94 3.6.2 Automatic motorstop after low idle (in option)......................................................................... 3-95 3.6.3 The uppercarriage swing movements .................................................................................... 3-95 3.6.4 Working position ..................................................................................................................... 3-98 3.6.5 Working attachment control .................................................................................................... 3-99 3.6.6 Lowering the working attachment with the engine shut down .............................................. 3-101 3.6.7 Turning, rotating, bolting and unbolting the add-on unit ....................................................... 3-101 3.6.8 Control of the swivel rotator (option)..................................................................................... 3-104 3.6.9 Lifting magnet control system (optional equipment) ............................................................. 3-105 3.6.10 Control of special equipments via the additional pedals....................................................... 3-107 3.6.11 AHS11 proportional control (in option) ................................................................................. 3-110 3.6.12 Commutation of the controls for an additional user AHS (special equipment) ..................... 3-110 3.6.13 Special control system of the joysticks ................................................................................. 3-111 3.6.14 Dozer blade .......................................................................................................................... 3-113 3.6.15 Cut off by end switches of attachment movements (Option) ................................................ 3-114 3.6.16 Overload warning device (Option) ........................................................................................ 3-119 Attaching and dismounting equipment parts...................................................................................... 3-121 3.7.1 Attaching and dismounting the bucket.................................................................................. 3-122 3.7.2 Attaching and dismounting the bucket with improved sealing .............................................. 3-125 3.7.3 Attaching and dismounting the grab on stick ........................................................................ 3-127 3.7.4 Attaching and dismounting the grab on stick ........................................................................ 3-130 3.7.5 Attaching and dismounting the grab on the industrial stanchion .......................................... 3-133 3.7.6 Attaching and dismounting the stick to the boom ................................................................. 3-135 3.7.7 Mechanical quick-change adapter (optional extra) ............................................................... 3-137 3.7.8 Hydraulic quick-change adapter (optional extra) .................................................................. 3-141 3.7.9 LIKUFIX – hydraulic coupling system (optional extra) .......................................................... 3-148 General working methods .................................................................................................................. 3-151 3.8.1 Minimum impact working methods for your machine............................................................ 3-151 3.8.2 Preparatory activities ............................................................................................................ 3-151 3.8.3 Using a backhoe bucket ....................................................................................................... 3-152 3.8.4 Loading a transport vehicle .................................................................................................. 3-154 3.8.5 Skimming .............................................................................................................................. 3-154 3.8.6 Using a clamshell bucket (earthmoving attachment) ............................................................ 3-155 3.8.7 Using a multiple tine grapple (industrial attachment)............................................................ 3-157 3.8.8 Using an hydraulic hammer .................................................................................................. 3-158 Transport............................................................................................................................................ 3-160 3.9.1 Transporting the machine on a low loader ........................................................................... 3-161 3.9.2 Loading the machine with a crane ........................................................................................ 3-165

Malfunctions ................................................................................................................................................... 4-1 4.1

4.2

0-2

Error code charts ................................................................................................................................... 4-2 4.1.1 Machine Control system (BST)................................................................................................. 4-2 4.1.2 Engine control system (PLD-CR).............................................................................................. 4-3 4.1.3 Keypad ..................................................................................................................................... 4-6 4.1.4 Display ...................................................................................................................................... 4-7 4.1.5 Coding error.............................................................................................................................. 4-7 4.1.6 Other errors .............................................................................................................................. 4-7 4.1.7 Error due to warning symbols in SY field.................................................................................. 4-8 Faults and remedies ............................................................................................................................ 4-10

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3.4

Operating manual

4.3

5

4.2.1 Diesel engine and fuel system ............................................................................................... 4-10 4.2.2 Hydraulic system .................................................................................................................... 4-11 4.2.3 Transmission .......................................................................................................................... 4-12 4.2.4 Electrical system .................................................................................................................... 4-12 4.2.5 Work equipment ..................................................................................................................... 4-13 4.2.6 Heating/air-conditioning system ............................................................................................. 4-13 4.2.7 LIEBHERR particles filter system ........................................................................................... 4-15 Fuses and relays ................................................................................................................................. 4-16 4.3.1 Fuse box E50 ......................................................................................................................... 4-16 4.3.2 A1010 Plate ............................................................................................................................ 4-18 4.3.3 A1001 Plate ............................................................................................................................ 4-20

Maintenance ................................................................................................................................................... 5-1

LFR/en/edition: 12 / 2010

5.1 5.2

Servicing the machine safely ................................................................................................................. 5-1 Maintenance access doors .................................................................................................................... 5-7 5.2.1 Overview of access doors ........................................................................................................ 5-7 5.2.2 Door lock .................................................................................................................................. 5-8 5.3 Lubricants and operating fluids.............................................................................................................. 5-9 5.3.1 General information on changing lubricants and operating fluids............................................. 5-9 5.3.2 Lubrication chart ..................................................................................................................... 5-10 5.3.3 Lubricant chart........................................................................................................................ 5-12 5.3.4 Operating material chart ......................................................................................................... 5-13 5.4 Lubricants and fluids specification ....................................................................................................... 5-13 5.4.1 Diesel fuel............................................................................................................................... 5-13 5.4.2 Lubricating oil for the Diesel engine ....................................................................................... 5-14 5.4.3 Coolant for the diesel engine.................................................................................................. 5-16 5.4.4 Hydraulic liquids ..................................................................................................................... 5-23 5.4.5 Lubricating grease and other lubricants ................................................................................. 5-27 5.5 Diesel engine ....................................................................................................................................... 5-28 5.5.1 Checking the oil level in the diesel engine ............................................................................. 5-28 5.5.2 Changing the diesel engine oil ............................................................................................... 5-29 5.5.3 Belt for the A/C compressor and alternator installation .......................................................... 5-30 5.5.4 Lubricating starter ring gear ................................................................................................... 5-31 5.5.5 Vibration damper .................................................................................................................... 5-32 5.5.6 Checking mounting screws .................................................................................................... 5-32 5.5.7 Oil separator ........................................................................................................................... 5-33 5.5.8 Heater flange .......................................................................................................................... 5-34 5.5.9 Checking and adjustment of valve clearance ......................................................................... 5-34 5.6 LIEBHERR particles filter (In option) ................................................................................................... 5-37 5.6.1 Drain the condensation water:................................................................................................ 5-37 5.6.2 Water separator maintenance: ............................................................................................... 5-37 5.7 Cooling system .................................................................................................................................... 5-38 5.7.1 Checking and cleaning the cooling system ............................................................................ 5-38 5.7.2 Checking the coolant level ..................................................................................................... 5-39 5.7.3 Coolant antifreeze and anti-corrosion fluid ............................................................................. 5-39 5.7.4 Changing the coolant ............................................................................................................. 5-39 5.8 Fuel system ......................................................................................................................................... 5-43 5.8.1 Refuelling ............................................................................................................................... 5-44 5.8.2 Draining the fuel tank ............................................................................................................. 5-46 5.8.3 Emptying and cleaning the fuel tank ...................................................................................... 5-47 5.8.4 Draining the fuel prefilter ........................................................................................................ 5-48 5.8.5 Changing fuel filter cartridges................................................................................................. 5-48 5.8.6 Bleeding the fuel system ........................................................................................................ 5-51 5.9 Dry air filter .......................................................................................................................................... 5-54 5.9.1 Changing the main element ................................................................................................... 5-55 5.9.2 Changing the safety element.................................................................................................. 5-56 5.9.3 Monitoring the filtered air line ................................................................................................. 5-57 5.10 Hydraulic system ................................................................................................................................. 5-57

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5.11

5.12

5.13

5.14

5.15

5.16

5.17 5.18

5.19

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5.10.1 Preparatory activities .............................................................................................................. 5-58 5.10.2 Checking the oil level in the hydraulic tank............................................................................. 5-58 5.10.3 Depressurizing the hydraulic system ...................................................................................... 5-59 5.10.4 Emptying and refilling the hydraulic tank ................................................................................ 5-60 5.10.5 Return-line filter ...................................................................................................................... 5-61 5.10.6 Leckage oil return filter ........................................................................................................... 5-62 5.10.7 Control oil filter........................................................................................................................ 5-64 5.10.8 Control circuit.......................................................................................................................... 5-64 5.10.9 Bleeding the hydraulic pump .................................................................................................. 5-65 5.10.10 Bleeding the hydraulic cylinders ............................................................................................. 5-65 5.10.11 Unscrew the intake hose to the pump .................................................................................... 5-66 5.10.12 Vent filter on the hydraulic tank .............................................................................................. 5-67 5.10.13 Bypass oil filter for hydraulic circuit (option) ........................................................................... 5-67 5.10.14 Bypass oil filter for hydraulic system (Special equipment)...................................................... 5-69 5.10.15 Return oil filter for hydraulic hammer (option)......................................................................... 5-70 5.10.16 Servicing the hydraulic cylinder .............................................................................................. 5-71 5.10.17 Replacing hydraulic hoses...................................................................................................... 5-72 Oil changes on components ................................................................................................................ 5-73 5.11.1 General information ................................................................................................................ 5-73 5.11.2 Swing gear - Oil level check and oil change ........................................................................... 5-74 5.11.3 Splitterbox - Oil change .......................................................................................................... 5-75 5.11.4 Travelling gear - changing the oil ........................................................................................... 5-76 The track components ......................................................................................................................... 5-77 5.12.1 Checking the mounting screws of the track components ....................................................... 5-77 5.12.2 Checking the track chains tension .......................................................................................... 5-77 5.12.3 Retensioning the track ............................................................................................................ 5-79 5.12.4 Releasing the track chain tension........................................................................................... 5-79 5.12.5 Cleaning the track components .............................................................................................. 5-80 Electrical system .................................................................................................................................. 5-81 5.13.1 Notes on the electrical system................................................................................................ 5-81 5.13.2 Main battery switch ................................................................................................................. 5-82 5.13.3 Battery care ............................................................................................................................ 5-82 5.13.4 Slip ring assembly (optional extra) ......................................................................................... 5-83 Heating/air-conditioning system........................................................................................................... 5-84 5.14.1 Recirculated and fresh air filters ............................................................................................. 5-84 5.14.2 Heating system ....................................................................................................................... 5-85 5.14.3 Air-conditioning system .......................................................................................................... 5-86 Greasing the machine.......................................................................................................................... 5-88 5.15.1 The centralized lubrication system ......................................................................................... 5-88 5.15.2 Semi automatic and full automatic systems............................................................................ 5-90 5.15.3 Operation of the semi automatic system ................................................................................ 5-90 5.15.4 Operation of the full automatic system ................................................................................... 5-91 5.15.5 Emergency lubrication with defective lubrication system........................................................ 5-93 5.15.6 To refill a grease container ..................................................................................................... 5-94 5.15.7 Changes in the lubrication circuit............................................................................................ 5-95 5.15.8 Greasing the grab (optional extra) .......................................................................................... 5-95 Quick-change systems......................................................................................................................... 5-96 5.16.1 Greasing the mechanical quick-change adapter (optional extra) ........................................... 5-96 5.16.2 Hydraulic quick-change adapter (optional extra) .................................................................... 5-97 5.16.3 LIKUFIX (optional extra) ......................................................................................................... 5-98 5.16.4 Checking and maintenance of quick change coupler ............................................................. 5-99 Drive unit brakes and swing gear brakes........................................................................................... 5-101 General maintenance points .............................................................................................................. 5-101 5.18.1 Replacing working parts ....................................................................................................... 5-101 5.18.2 Checking or replacing the teeth on the bucket ..................................................................... 5-101 5.18.3 Welding work on the machine .............................................................................................. 5-103 Control and maintenance chart.......................................................................................................... 5-104

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R 924 Compact Tier III / 10360022

LFR/en/edition: 12 / 2010

Operating manual

1 Product description 1.1 Assembly - overview This section comprises an overview of the machine and descriptions of the components shown.

LFR/en/edition: 12 / 2010

1.1.1

Machine and construction equipment

Fig. 1-1

Machine with construction equipment

100

Upper carriage

320

Adjusting cylinder

360

Tilt cylinder

200

Chassis

330

Boom

370

Bucket

300

Hydraulic jack

340

Stanchion cylinder

310

Slewing arm

350

Shovel arm

Product description

Operating manual

Assembly - overview

Fig. 1-2

Hydraulic jack

330

Booml

360

Tilt cylinder

310

Slewing arm

340

Stanchion cylinder

370

Bucket

320

Adjusting cylinder

350

Shovel arm

LFR/en/edition: 12 / 2010

300

Machine with construction equipment

1-2

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R 924 Compact Tier III / 10360022

Operating manual

Product description Assembly - overview

1.1.2

Machine for transferring material

Fig. 1-3

Machine for transferring material

Hydraulic jack

340

Stanchion cylinder

330

Industrial boom

350

Industrial stanchion

370

Grab

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300

R 924 Compact Tier III / 10360022

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Product description

Operating manual

Assembly - overview

1.1.3

Upper carriage

Fig. 1-4

Upper carriage

Diesel engine

800

Swing ring

520

Fuel tank

7100 Hydraulic fluid tank

530

Dry air filter

7300 Hydraulic pump

560

Radiator

7600 Distributing regulator

700

Slewing gear transmission

LFR/en/edition: 12 / 2010

500

1-4

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Operating manual

Product description Assembly - overview

Fig. 1-5

Upper carriage - cabine 6230 Control panel, right

6220 Control panel, left

8700 Cab

LFR/en/edition: 12 / 2010

6000 Operator’s standing position

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Product description

Operating manual

Vibration emissions

1.1.4

Undercarriage

Fig. 1-6

Undercarriage

208

Leading wheel

1000 Rotary connection

400

Crawlers

4500 Travelling mechanism with tumbler wheel

1.2 Vibration emissions

Hand-arm vibration If the machine is operated according to the manufacturer instructions, the weighted (frequency-rated) effective hand-arm vibration is below 2.5 m/s² according to ISO 5349-1:2001.

Whole-body vibration If the machine is operated according to the manufacturer instructions, the weighted (frequency-rated) effective vibration shown for specific machine applications in the table below apply. These values conform to the specifications in the technical report

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R 924 Compact Tier III / 10360022

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The operator seat built into the machine by the manufacturer conforms to ISO 7096:2000, EM 6. When replacing the seat, ensure that the new seat also conforms to this standard.

Operating manual

Product description Sound emission

ISO/TR 25398:2006 "Earth-moving machinery – Guidelines for assessment of exposure to whole-body vibration of ride-on machines – Use of harmonized data measured by international institutes, organizations and manufacturers". The method of assessment conforms to ISO 2631-1:1997. The effective values in the table for representable machines are shown with the applicable standard deviations. These deviations are classified according to the operating conditions in the classes "lightduty", "normal" and "heavy-duty". It is the responsibility of the machine owner to assess the operating conditions according to the classes, taking into account the terrain, site conditions, site organisation, material, machine equipment, working procedure and training of the operator.

As the quoted values are effective values for specific, common applications, the whole-body vibration to which the operator is exposed can only be estimated. For a more detailed assessment of the daily exposure of the operator across an 8-hour shift, please refer to the LIEBHERR brochure on whole-body vibration and the software designed for the assessment. This document and software are available from the LIEBHERR dealer and are included as standard on the documentation CD (Lipart) shipped with new machines.

For instructions how to reduce whole-body vibration during operation of mobile construction machinery, please refer to chapter "Control, operation / working with machine / safety instructions / vibration protection".

Weighted effective vibration in m/s² at operating conditions "light-duty" (1), "normal" (2) and "heavy-duty" (3) Machine type

Crawler excavator

Mobile excavator

Typical working cycles

x-axis

y-axis

z-axis

1

2

3

1

2

3

1

2

3

Excavator

0.14

0.31

0.49

0.08

0.19

0.31

0.13

0.30

0.47

with hydraulic hammer

0.16

0.38

0.59

0.09

0.22

0.35

0.27

0.55

0.83

Use for mining

0.31

0.46

0.61

0.19

0.30

0.41

0.29

0.61

0.93

Transfer travel

0.21

0.34

0.48

0.09

0.23

0.37

0.56

0.79

1.02

Excavator

0.19

0.37

0.56

0.09

0.25

0.41

0.16

0.29

0.42

Transfer travel

0.21

0.29

0.38

0.24

0.38

0.52

0.42

0.61

0.80

The measurement uncertainty is defined in standard EN 12096:1997.

1.3 Sound emission The sound values of the machine are specified in the technical data.

LFR/en/edition: 12 / 2010

The sound power level (Lwa) is determined according to Directive 2000/14/EG. The measurement uncertainty of the sound power level value corresponds to the difference between the guaranteed and the measured value.

The sound pressure level (Lpa) is determined according to ISO 6396. The measurement uncertainty is defined in the above standard.

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Product description

Operating manual

EC Declaration of Conformity

1.4 EC Declaration of Conformity

Sample EC Declaration of Conformity (from year of manufacture 2010)

1.5 Technical data This should be taken from the accompanying technical description.

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R 924 Compact Tier III / 10360022

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Fig. 1-7

Crawler Excavator

R 924 COMPACT Operating Weight: 55,445 - 64,043 lb Engine Output: 163 kW / 120 HP Bucket Capacity: 0.78 - 1.50 yd3

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R 924 COMPACT Operating Weight: Engine Output: Bucket Capacity:

2

55,445 - 64,043 lb 163 kW / 120 HP 0.78 - 1.50 yd3

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Performance

Comfort

The Liebherr R 924 Compact is the combination of the excellent performance characteristics of a standard excavator and the reduced dimensioning of a compact machine.

Even when operational in areas where space is limited the R 924 Compact copes with the highest demands in regard to excavation and load performance.

A concept focussed speciďŹ cally on operator comfort has resulted in the largest driver’s cab in its class as well as perfect accessibility of all service points.

Reliability The high demand for performance and quality is consequently converted into landmark solutions to achieve the highest level of dependability and availability. Liebherr has more than 50 years experience in the production of hydraulic excavators and has an unparalleled competence in design and know-how.

Economy The R 924 Compact is synonymous with multi-functionality, performance and maximum possible productivity. Innovative features such as the modular quick-change system and the central lubrication system, ďŹ tted as standard, shorten tooling and servicing times.

R 924 Compact

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3

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Multi-function tool carrier • For every material and application the correct digging tool • Change-over of mechanical and hydraulic tool in a matter of seconds due to a modular quick coupler system designed and manufactured

by Liebherr • Likufix for the change-over of all hydraulic and mechanical tools from the dash board in the operator station

4

R 924 Compact

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Performance The Liebherr R 924 Compact is the combination of the excellent performance characteristics of a standard excavator and the reduced dimensioning of a compact machine. It is synonymous with multi-functionality, performance and maximum possible productivity.

Innovative features such as the modular quick-change system and the central lubrication system, fitted as standard, shorten tooling and servicing times.

Outstanding Productivity Liebherr Positive Control Hydraulic System

Two independent hydraulic circuits ensure effective component actuation, particularly during simultaneous movements, quickly making the necessary flow rates available and providing optimal energy utilisation. The maximum movement speeds are achieved by switching the pump circuits to work in parallel. This means that the Liebherr Positive Control Hydraulic System offers improved performance during simultaneous movements, grading work and when driving both straight ahead and cornering.

High excavation and load performance

The R 924 Compact is ideally suitable for use under the most confined conditions due to a reduced tail swing of 5’7” ft-in and impresses with an outstanding stability.

Combined with a high hydraulic performance – typical for Liebherr hydraulic excavators – the results are short cycle times and high digging- and loading performances.

Liebherr diesel power

The four cylinder diesel engine designed and manufactured by Liebherr especially for construction machinery, guarantees huge capacity and long operational life as well as complying with the Level lllA / Tier 3 exhaust standard. At the same time, the R 924 Compact with this engine power is the most powerful excavator in its class. Unique for a compact excavator is the crafty solution for the longitudinal mounting of the powerpack.

Solid footing Stability

The weight concentration in the undercarriage contributes to an effective utilization of the digging forces and an excellent stability under all ground conditions.

Large ground clearance

The large ground clearance under the carbody assures an extensive protection of the undercarriage components as well as easy traveling even under difficult ground conditions.

Key technologies made by Liebherr

Sturdy Undercarriage

• Power train optimised perfectly to the construction of the short-tail excavator

• The combination of high tensile strength steel plates and steel castings in order to minimize stress tension

• Outstanding performance characteristics for productivity unique in its class • In-house production of engines, hydraulic pumps, transfer gears, traction drives and electronic components

• A dozer blade, e.g. for grading jobs, is optional available

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Robust equipment design • Unique hoist assembly positioning design: The R 924 Compact is the only machine in its class fitted with two separate bolts • High-strength design with cast sockets • Long-term benefit: Cast steel components at the pivot points

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Reliability The high demand for performance and quality is consequently converted into landmark solutions to achieve the highest level of dependability and availability. Liebherr has more than 50 years experience in the production of hydraulic excavators and has an unparalleled competence in design and know-how.

Technology with prospects Perfect optimisation

Individual components of the drive train, manufactured in-house, such as diesel engine, traction drive, rotary actuators, operating pump and hydraulic cylinder are perfectly optimised with one another. As components of a total system designed for long operational life, they guarantee maximum possible reliability.

Quality right down to the The clear lay out of hydraulic, lubrication and electrical last detail conduits ensures ideal operational reliability and maximum machine availability. Undercoating and surfacetreating of components provide ideal corrosion protection.

Safety of functionality Protected Operator

The cab complies with the ROPS (Roll-Over protective Structure) requirements, as laid out in ISO 12117-2. In addition, the R 924 Compact is fitted with protection for the roof window as standard.

Automatic control of functionality

The operator can entirely focus on his job, because the integrated on-board electronic continuously performs a comparison with pre-determined target data. Eventual deviations from the target parameters are shown on the display.

Data storage

The on-board computer stores eventual abnormalities from the rated data. The data can be readily recalled and transferred by radio transmission to a service center.

Liebherr hydraulic cylinders

Cleanly arranged upper

• Cylinder sizes matched to each model

• Clearly arranged hose routing is designed to achieve longevity

• High-quality coating of piston rod • Special gasket packages for piston rod and piston • Sealed special bushings for pin mountings

• Transverse-mounted control valve for optimal accessibility • Secure hose routing within the upper structure

• End-cushion at each end

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Intelligent detailed solutions • The radiators are well accessible from the ground level for cleaning • Easy cleaning of the foldable climate condenser • Laterally positioned intake slots to increase radiator longevity

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Comfort A concept focussed specifically on operator comfort has resulted in the largest driver’s cab in its class as well as perfect accessibility of all service points.

The operator takes centre stage Workspace with free room

In terms of the personal space requirements, the operator of the R 924 Compact has almost unlimited room. The spacious and comfortable cab provides all operators with generous room for climbing in, generous leg and elbow room and lots of storage space for cool box and other personal items.

Air-conditioning as standard

The air-conditioning sensors constantly monitor the temperature settings. The ventilation flaps can be open and closed electronically at the press of a button. The re-heat function dehumidifies the cab in seconds.

Ergonomics for an effective work effort Straightforward arrangements

Design and positioning of seat, consoles and information display are perfectly coordinated within an ergonomically total concept. The operator seat with shock absorber is adjustable to fit individual needs. The oversized cab windows provide optimal visibility to the entire working- and surrounding area.

Intelligent joystick controls

The ergonomically optimized joysticks provide relaxed working conditions. The travel function of the excavator is easy and precise due to hydraulically cushioned foot pedals.

Everything in its right place

Maintenance benefits as standard

• Comfortable climb with ergonomically positioned hand grips

• All service points are centrally integrated and easily accessible via service flap

• Large platform, treated with anti-slip coating • Optimal arrangement of mirrors for unobstructed view of the surrounding area

• All routine servicing work possible from ground • Routine cleaning of the most accessible coolers can easily be performed by opening out the individual cooling elements

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