Liebherr L550-456 Wheel Loader Service Repair Manual SN：FROM 16978 by 163110338

Service Manual (20

Wheel loader (10 points)

L550 - L580 2plus2 (10

Service Manual (20

Wheel loader (10 points)

L550 - L580 2plus2 (10

Address Address:

LIEBHERR-WERK BISCHOFSHOFEN GMBH Dr. Hans Liebherr – Straße 4 A – 5500 BISCHOFSHOFEN

Product ID Manufacturer: Product group: Type: Production number: Serial number:

LIEBHERR-WERK BISCHOFSHOFEN GMBH Wheel loader L550 L556 L566 L576 L580 456 454 460 457 459 16978 15653 14171 14171 14171

Document ID Order number: Author: Document version: Manual number: Owner:

1035 3357 LBH / Technical Documentation Department 02

General information

Product description

Maintenance

Diesel engine and pump distributor gear

Cooling system

Travel hydraulics

Working hydraulics

Steering system

Brake system

Electrical system

Transfer gear

Axles and cardan shaft

Machine frame and ballast weight

Central lubrication system

Coverings and access

Cab, heating and air-conditioning

Lift arms and quick-change device

Equipment and accessories

Service codes and diagnosis

Options

1 General Informations 1.0 Chapter contents 1

General Informations........................................................... 1.0-1 1.1

Safety regulations ...........................................................................1.1-1 1.1.1

Introduction...........................................................................1.1-1

1.1.2

Overview of the safety regulations .......................................1.1-2

1.2

Special tools for maintenance and repair work...............................1.2-1 1.2.1

Special tools in general ........................................................1.2-1

1.2.2

Special tools for Liebherr diesel engines..............................1.2-1

1.2.3

Special tools for hydraulic cylinders .....................................1.2-1

1.2.4

Special tools for electronics..................................................1.2-1

1.2.5

Special tools for axles...........................................................1.2-1

1.2.6

Special tools for the transmission.........................................1.2-1

1.2.7

Central lubrication system ....................................................1.2-1

1.2.8

Special tools for the air conditioning system ........................1.2-1

1.2.9

Special tools for cab windows ..............................................1.2-1

1.3

Standard .........................................................................................1.3-1 1.3.1

L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

Tightening torques for screws ..............................................1.3-1

L576 - 457 / from 14171 L580 - 459 / from 14171

MJFCIFSS

1.0-1 o f 2

Service Manual

General Informations Safety regulations

1.1 Safety regulations Working on the machine poses safety risks to the operator, driver or maintenance engineers. You can prevent risks and accidents by regularly reading and observing the various safety instructions. This is especially important for personnel who only occasionally work on the machine, for example, carrying out rigging or maintenance work. The safety regulations listed below, if conscientiously followed, will ensure your own safety and that of others, and will prevent the machine from being damaged. All work must be carried out only by qualified expert personnel or under the guidance and responsibility of such personnel. Qualified personnel are people, who: – on the basis of their education, experience and training have sufficient knowledge of earth moving machinery and the technology, – have in-depth knowledge of the regulations concerning the prevention of industrial accidents and of national regulations and guidelines, – can assess the safe operating condition of earth moving machinery, – can carry out the required work without putting those carrying out the work, or other parties, into danger. Whenever tasks which could cause danger to personnel or damage to the machine are described, the necessary safety precautions are explained in this manual. These are indicated by the headings Danger, Warning, Caution or Notice.

1.1.1

Introduction 1. The symbols below have the following meanings: DANGER Denotes an urgent, dangerous situation. Will result in death or serious injury. Actions to avert the danger.

WARNING Denotes a dangerous situation. Can result in death or serious injury. Actions to avert the danger.

CAUTION Denotes a dangerous situation. Can result in slight or moderate injury. Actions to avert the danger.

NOTICE Denotes a dangerous situation. Can cause material damage. Actions to avert the danger.

L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

L576 - 457 / from 14171 L580 - 459 / from 14171

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1.1-1 o f 2

General Informations

Service Manual

Safety regulations

Note Useful tips and instructions Possible benefits Actions to implement

2. Observance of these instructions does not exempt you from following any additional rules and guidelines that may apply The following should also be observed: – The safety rules in force at the operating site – Legally enforceable road traffic regulations – Guidelines issued by trade associations

1.1.2

Overview of the safety regulations For further information please see the safety regulations in the current edition of the operating instructions. You will find the latest edition of the operating instructions in your Liebherr Service documentation. The following sections are included in the operating manual:

1.1-2 o f 2

General safety regulations

Instructions on preventing crushing injuries and burns

Instructions on preventing fires and explosions

Safety instructions for start-up

Safety precautions during start-up

Instructions for safe working

Safety instructions for driving on slopes

Parking safely

Transporting the machine safely

Towing the machine safely

Measures for ensuring safe maintenance

Safety instructions for working on machines with hydro accumulators

Safety instructions for welding work on the machine

Instructions for working safely on the working attachment

Safety instructions for transporting the machine by crane

Safe maintenance of hydraulic hoses and hose lines

Attachments and accessories

Protection against vibrations

MJFCIFSS

L550 - 456 / from 16978 L556 - 454 / from 15653

L566 - 460 / from 14171 L576 - 457 / from 14171 L580 - 459 / from 14171

Service Manual

General Informations Special tools for maintenance and repair work

1.2 Special tools for maintenance and repair work 1.2.1 Description

Special tools in general

Anti-freeze and battery tester

7408922

All wheel loaders

24 volt vacuum pump Filling and testing device with case Manometer 0 - 40 bar Manometer 0 - 250 bar Manometer 0 - 600 bar Manometer connection High pressure hose 1500 mm High pressure hose 4000 mm Screw connection M 10 x 1 Draining hose Drain piece

7408148

All wheel loaders

Remarks For checking the acid concentration (battery charging state) and anti-freeze For preventing oil loss

8145359

All wheel loaders

For checking the hydro accumulator

7361288 5002932 5002866 7002436 7002475 7009134 5005180 7005660 7402657

All wheel loaders All wheel loaders All wheel loaders All wheel loaders All wheel loaders All wheel loaders All wheel loaders All wheel loaders All wheel loaders

Safety cap 10 mm

7009315

All wheel loaders

Safety cap 13 mm Safety cap 17 mm Safety cap 19 mm

7615515 7615589 7009317

All wheel loaders All wheel loaders All wheel loaders

Safety cap 17 mm

7622068

All wheel loaders

USB dongle Diagnostic data cable (RS-232) Diagnostic data cable 1,5 m (ETHERNET) Diagnostic data cable 3,0 m (ETHERNET)

10333608

L550 - L586

10035410

L550 - L586

10225579

L550 - L586

10513200

L550 - L586

Adapter cable RS232<>USB

693190714 All wheel loaders

SDCF-03 memory card adapter

10223098

L550 - L586

Compact flash card

10223095

L550 - L586

For checking the hydraulic pressure For checking the hydraulic pressure For checking the hydraulic pressure Connection for the manometer High pressure hose for manometer High pressure hose for manometer For checking the hydraulic pressure For draining oil via a drain valve For the drain hose For securing the valves on the variable adjustment motor For securing the valves on the pumps For securing the valves on the pumps For securing the valves on the pumps For securing the valves on the control block With SERVICE authorisation For adjusting the travel hydraulics, and testing the electrical system and options For adjusting the travel hydraulics, and testing the electrical system and options For adjusting the travel hydraulics, and testing the electrical system and options For communicating with the wheel loader electronics if there is an error with the RS232 interface on the notebook. For writing to the compact flash card Blank compact flash card. Data medium for application software.

L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

ID no.

Use

L576 - 457 / from 14171 L580 - 459 / from 14171

MJFCIFSS

1.2-1 o f 6

General Informations

Service Manual

Special tools for maintenance and repair work

1.2.2 Description

Special tools for Liebherr diesel engines ID no.

Use

Mandrel

9078118

L550 - L556 engine

Mandrel

9078119

L550 - L556 engine

Rotary angle device

0524062

L550 - L586 engine

Holder

0528464

L550 - L586 engine

Dial gauge holder

10023885

L550 - L586 engine

Compression tester Compression tester insert Adapter Claw

8008782 10012817 10297211 10117612

L550 - L586 engine L550 - L586 engine L550 - L586 engine L550 - L586 engine

Engine turner

0524045

L550 - L586 engine

Holder

0528464

L550 - L586 engine

Piston strap

8000592

L550 - L586 engine

Rotary angle device

0524062

L550 - L586 engine

Piston ring tongs

7009319

L550 - L586 engine

Extractor tool

0526855

L550 - L586 engine

Extractor tool

0528462

L550 - L586 engine

Mounting pin

0528470

L550 - L586 engine

Hook and lever

7019858

L550 - L586 engine

Inserter

10116249

L550 - L586 engine

Mounting pin

0528470

L550 - L586 engine

Inserter

10116250

L550 - L586 engine

Special spanner

10020852

L550 - L586 engine

Adapter

0524029

L550 - L586 engine

Adapter

10220689

L550 - L586 engine

Hammer puller

0524072

L550 - L586 engine

Pusher tube

10289319

L550 - L586 engine

Pusher tube

10289320

L550 - L586 engine

Mounting pin

0528472

L550 - L586 engine

1.2-2 o f 6

MJFCIFSS

Remarks For installing the mass equalisation shafts (D 934) For installing the mass equalisation shafts (D 934) For installing and removing the cylinder head For checking projection of the cylinder bushings For checking projection of the cylinder bushings For checking the compression For checking the compression For checking the compression For checking the compression For installing and removing the pistons and rods For installing and removing the pistons and rods For installing and removing the pistons and rods For installing and removing the pistons and rods For installing and removing the piston rings For installing and removing the cylinder bushing For installing and removing the cylinder bushing For installing and removing crankshaft attachments For installing and removing the front crankshaft seal For installing and removing the front crankshaft seal For installing and removing the flywheel For installing and removing the rear crankshaft seal For installing and removing the injection line For installing and removing the pressure pipe port and injection nozzles For installing and removing the pressure pipe port and injection nozzles For installing and removing the pressure pipe port and injection nozzles For installing and removing the injection pump and roller tappet For installing and removing the injection pump and roller tappet For installing and removing the exhaust pipe

L550 - 456 / from 16978 L556 - 454 / from 15653

L566 - 460 / from 14171 L576 - 457 / from 14171 L580 - 459 / from 14171

Service Manual

General Informations Special tools for maintenance and repair work

1.2.3

Special tools for hydraulic cylinders

Description Assembly sleeve 80 mm

ID no. 9227165

Assembly sleeve 90 mm

9227161

Assembly sleeve 130 mm

9998624

Assembly sleeve 150 mm

9998622

Assembly sleeve 170 mm Expansion sleeve 80 mm

9107931 9227166

Expansion sleeve 90 mm

9227162

Expansion sleeve 130 mm

9110408

Expansion sleeve 150 mm

9110410

Expansion sleeve 170 mm Bearing head assembly spanner 70/8 mm Bearing head assembly spanner 75/12 mm

9110412

Use L550, L556 steering cylinder L566, L576, L580 steering cylinder L550, L556 lift cylinder L550, L556 tilt cylinder L566, L576, L580 lift cylinder L566, L576, L580 tilt cylinder L550, L556 steering cylinder L566, L576, L580 steering cylinder L550, L556 lift cylinder L550, L556 tilt cylinder L566, L576, L580 lift cylinder L566, L576, L580 tilt cylinder

9210219

L550, L556 steering cylinder

For fitting the piston rod bearing

9239572

L566, L576, L580 steering cylinder

For fitting the piston rod bearing

1.2.4 Description

8502956

Test probe, red Test probe, black Magnet tester Stripping and crimping pliers 0.5 â&#x20AC;&#x201C; 6.0 mm2 Crimping pliers Wedge extractor tool Extraction tool size 12 for pin and bushing Extraction tool size 16 for pin and bushing Extraction tool size 20 for pin and bushing

Use

For fitting the seals For fitting the seals For fitting the seals For fitting the seals For fitting the seals For fitting the seals For fitting the seals For fitting the seals

Remarks For measuring voltage, current, resistance and frequency For testing DEUTSCH connectors For testing DEUTSCH connectors For checking solenoid valves

All wheel loaders

884191214 All wheel loaders 884191114 All wheel loaders 8145743 All wheel loaders 8460263

All wheel loaders

For MATE-N-LOK connectors

8503647 7026267

All wheel loaders All wheel loaders

For DEUTSCH connectors For DEUTSCH connectors

8145674

All wheel loaders

For DEUTSCH connectors

8145673

All wheel loaders

For DEUTSCH connectors

8503630

All wheel loaders

For DEUTSCH connectors

1.2.5

Special tools for axles

Description

ID no.

Hand pump

8145835

L550 - L586 axles

Collet

7009536

L550 - L576 axles

Spring hook

8145767

L550 - L576 axles

Slip bushing 260 mm

7017559

Slip bushing 315 mm

7017556

L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

For fitting the seals

Special tools for electronics

ID no.

Digital multimeter

Remarks For fitting the seals

Use

Remarks For finding leaks on disc brakes For installing and removing the snap ring in the planetary drive For attaching and detaching the return springs

L556 front axle L556 rear axle L566, L576 front axle L566, L576 rear axle

L576 - 457 / from 14171 L580 - 459 / from 14171

For fitting the brake piston For fitting the brake piston

MJFCIFSS

1.2-3 o f 6

General Informations

Service Manual

Special tools for maintenance and repair work

Description Slip bushing M 90 x 1.5 mm Slip bushing M 110 x 1.5 mm Slip bushing M 130 x 1.5 mm Handle Handle Mounting tool

ID no.

Use

Remarks

7017558

L556 rear axle

For fitting ring gear carriers

7017557

L556 front axle L566, L576 rear axle

For fitting ring gear carriers

7017555

L566, L576 front axle

For fitting ring gear carriers

7017566 7011518 7017563

Handle for mounting tool Handle for various mounting tools For fitting cartridge seal ring

7011522 7013922

L550 - L576 axles L550 - L576 axles L556 rear axle L556, L566, L576 front axle; L566, L576 rear axle L556 - L576 axles L556 rear axle L556 front axle L566, L576 rear axle L566, L576 front axle L556 front axle L556, L566, L576 rear axle L566, L576, L580 front axle; L580 rear axle L556 - L580 axles L556 - L580 axles

10017840

L550 - L576 axles

7624271

L550 axles, MT-L 3085

Mounting tool

7624272

L550 axles, MT-L 3085

Centring bracket

10008138

Centring bracket

10493498

Socket wrench

10493499

Socket wrench

10008139

Socket wrench

10218794

Clamp fork

10008140

L550 MT-L 3085 axles

10286181

L580 Hercules axles

10286183

L580 Hercules axles

10286186

L580 Hercules axles

Grip for seal driver and shell

10286188

L580 Hercules axles

Driver for inner lip seal

10286189

L580 Hercules axles

Driver for wear bushing with guide

10286190

L580 Hercules axles

Mounting tool

7017560

Centring bracket Groove nut spanner 111 mm

7013775 7009537

Groove nut spanner 140 mm

7011251

Groove nut spanner 169 mm Measuring screw M 16 x 1.5 Measuring screw M 16 x 1.5 Clamp fork Mounting tool Slotted nut spanner 81 mm Mounting tool (used with grip 7011518)

7013774

Special tool kit for Hercules axles Driver for lubrication and oil seal 3â&#x20AC;&#x153; bushing driver with guide and grip

1.2-4 o f 6

7019556 8145771

L550 - L576 axles MT-L 3085-3105 L550 - L576 axles MT-L 3095-3105 L550 - L576 axles MT-L 3095-3105 L550 MT-L 3085 axles L556 rear axle L550 MT-L 3085 front axle L556 - L576 axles

MJFCIFSS

For fitting cartridge seal ring For groove nut spanner For fitting the grooved nuts For fitting the grooved nuts For fitting the grooved nuts For measuring wear on the brake discs For measuring wear on the brake discs For fitting the drive flange For fitting the shaft seal ring For fitting the grooved nuts on the axle shaft For fitting the dust protection axle insert For fitting the shaft seal ring axle insert For detaching the output For detaching the output For detaching the output For detaching the output For detaching the output For removing and fitting the drive pinion Contains the following items: 10286183 - 10286198 For fitting the lubrication and oil seal, to be used with grip 10286788 For installing bushing, including grip 10286788 For fitting the outer lip seal, to be used with appropriate driver For fitting the inner lip seal, to be used with grip 10286788 For installing the wear bushing

L550 - 456 / from 16978 L556 - 454 / from 15653

L566 - 460 / from 14171 L576 - 457 / from 14171 L580 - 459 / from 14171

Service Manual

General Informations Special tools for maintenance and repair work

Description

ID no.

Grooved nut socket

10286192

L580 Hercules axles

Seal holder installation tool Driver for oil bearing casings, bevel gear Driver for grease seal and disc

10286193

L580 Hercules axles

10286194

L580 Hercules axles

10286195

L580 Hercules axles

Rolling apparatus

10286196

L580 Hercules axles

Lifting tackle Installation tool for Lifetime seal

10286197

L580 Hercules axles

Remarks For removing and fitting the grooved nuts For fitting the seal holder For installing the bearing casings, bevel gear For fitting the grease seal and disc, to be used with grip 10286788 For testing the rolling torque of the wheel hubs For removing the wheel hub

10286198

L580 Hercules axles

For fitting the Lifetime seal

1.2.6 Description

Use

Special tools for the transmission ID no.

Use

Fixing spanner

10016179

L550 - L586

Special socket

10016180

L550 - L586

Mounting tool

10016181

L550 - L586

1.2.7 Description

Remarks For loosening and tightening the grooved nut on the coupling 1 For loosening and tightening the grooved nut on the coupling 1 For removing and attaching the snap ring on the couplings

Central lubrication system ID no.

Use

BEKA Max filling press

10009239

All wheel loaders

Groeneveld filling press

10333342

All wheel loaders

7029283

All wheel loaders

7624289

All wheel loaders

7624290

All wheel loaders

Filling connection Grรถneveld central lubrication data cable Grรถneveld central lubrication plug adapter

1.2.8 Description

Remarks For quickly filling the BEKA Max reservoir For quickly filling the Groeneveld reservoir For filling the reservoir For inspecting the central lubrication system For inspecting the central lubrication system

Special tools for the air conditioning system ID no.

Use

Remarks

Vacuum pump

7027552

All wheel loaders

For evacuating the air conditioning system

4-valve test fitting

7027558

All wheel loaders

For testing, evacuating and filling the air conditioning system

Filling hose, blue 1500 mm

7027553

All wheel loaders

For the test fitting

Filling hose, yellow 1500 mm

7027554

All wheel loaders

For the test fitting

Filling hose, red 1500 mm

7027555

All wheel loaders

For the test fitting

Car coupling 253a

7027556

All wheel loaders

For the test fitting

Car coupling 254a

7027557

All wheel loaders

For the test fitting

L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

L576 - 457 / from 14171 L580 - 459 / from 14171

MJFCIFSS

1.2-5 o f 6

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General Informations

Service Manual

Special tools for maintenance and repair work

1.2.9 Description Complete tool box with suction pads

1.2-6 o f 6

Special tools for cab windows ID no.

10021147

Use

Remarks

All wheel loaders

For installing and removing windows

MJFCIFSS

L550 - 456 / from 16978 L556 - 454 / from 15653

L566 - 460 / from 14171 L576 - 457 / from 14171 L580 - 459 / from 14171

Service Manual

General Informations Standard

1.3 Standard 1.3.1

Tightening torques for screws Pre-loading forces and tightening torques for screws with standard and fine metric threads.

Standard and fine metric threads All figures are for bolted connections with at least one Dacromet 500 coated element (screws, washers, nuts…) Surface: - DACROMET 500

Thread

Assembly preloading forces FM in N

Class

Tightening torques MA in Nm

Standard and fine metric threads. All figures are for bolted connections without any Dacromet 500 coated elements (screws, washers, nuts…) Surface: - black finish or phosphated - zinc-plated Thread

Class

for avg. coefficient of friction µG= 0.10

M8x1

M9x1

M10

M10x1

M10x1,25

M12

M12x1,25

M12x1,5

M14

M14x1,5

Date 15.10.2008

Works LBH

4 200 6 200 7 300 6 900 10 100 11 900 9 700 14 300 16 700 14 200 20 900 24 500 17 900 26 000 30 500 19 600 28 500 33 500 25 500 38 000 44 000 28 500 42 000 49 000 32 500 48 000 56 000 30 500 45 000 53 000 41 500 61 000 71 000 46 500 68 000 80 000 44 000 65 000 76 000 57 000 84 000 98 000 63 000 92 000 108 000

2,5 3,7 4,3 4,9 7,3 8,5 8,5 12,5 14,5 14,0 20,5 24,0 20,5 30 35 22 32 38 32 46 54 41 60 71 45 67 78 43 64 74 71 104 121 77 112 130 74 108 125 113 165 195 121 175 205

Issued Roland Weber

L576 - 457 / from 14171 L580 - 459 / from 14171

Tightening torques MA in Nm

for avg. coefficient of friction µG= 0.12

M8x1

M9x1

M10

M10x1

M10x1,25

M12

M12x1,25

M12x1,5

M14

M14x1,5

Reviewed Dr. Herbert Pfab

This document must not be copied or reproduced without prior permission. This document has been electronically prepared and is valid without requiring a signature. L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

Assembly preloading forces FM in N

MJFCIFSS

4 050 6 000 7 000 6 600 9 700 11 400 9 400 13 700 16 100 13 700 20 100 23 500 17 200 25 000 29 500 18 800 27 500 32 500 24 800 36 500 42 500 27 500 40 000 47 000 31 500 46 500 54 000 29 500 43 000 51 000 40 000 59 000 69 000 45 000 66 000 77 000 42 500 62 000 73 000 55 000 80 000 94 000 61 000 89 000 104 000

2,8 4,1 4,8 5,5 8,1 9,5 9,5 14,0 16,5 15,5 23,0 27 23 34 40 24,5 36 43 36 53 62 46 68 79 52 76 89 49 72 84 79 117 135 87 125 150 83 122 145 125 185 215 135 200 235

Approved Dr. Herbert Pfab Liebherr-Norm_DE_V001.dot

1.3-1 o f 4

General Informations

Service Manual

Standard

Thread

Class

Assembly preloading forces FM in N

Tightening torques MA in Nm

Thread

for avg. coefficient of friction ÂľG= 0.10

M16

M16x1,5

M18

M18x1,5

M18x2

M20

M20x1,5

M22

M22x1,5

M24

M24x1,5

M24x2

M27

M27x1,5

M27x2

M30

M30x1,5

M30x2

M33

M33x1,5

M33x2

M36

M36x1,5

8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9

78 000 115 000 134 000 85 000 125 000 147 000 98 000 140 000 164 000 114 000 163 000 191 000 106 000 151 000 177 000 126 000 180 000 210 000 144 000 206 000 240 000 157 000 224 000 260 000 177 000 255 000 295 000 182 000 260 000 305 000 215 000 306 000 358 000 203 000 290 000 340 000 239 000 340 000 400 000 276 000 394 000 461 000 265 000 375 000 440 000 290 000 415 000 485 000 346 000 493 000 576 000 332 000 472 000 553 000 360 000 520 000 600 000 423 000 603 000 705 000 410 000 580 000 680 000 425 000 600 000 710 000 508 000 724 000 847 000

170 250 300 180 270 310 245 350 410 270 390 450 260 370 430 350 490 580 380 540 630 470 670 780 510 720 840 600 850 1000 700 990 1170 640 920 1070 880 1250 1450 1010 1440 1690 940 1350 1550 1190 1700 2000 1410 2000 2340 1370 1940 2270 1600 2300 2700 1880 2670 3130 1750 2500 2900 2100 3000 3500 2450 3490 4090

Assembly preloading forces FM in N

Class

for avg. coefficient of friction ÂľG= 0.12

M16

M16x1,5

M18

M18x1,5

M18x2

M20

M20x1,5

M22

M22x1,5

M24

M24x1,5

M24x2

M27

M27x1,5

M27x2

M30

M30x1,5

M30x2

M33

M33x1,5

M33x2

M36

M36x1,5

This document must not be copied or reproduced without prior permission. This document has been electronically prepared and is valid without requiring a signature.

1.3-2 o f 4

MJFCIFSS

Tightening torques MA in Nm

L550 - 456 / from 16978 L556 - 454 / from 15653

75 000 111 000 130 000 82 000 121 000 141 000 94 000 135 000 157 000 110 000 157 000 184 000 102 000 146 000 170 000 121 000 173 000 202 000 139 000 199 000 232 000 152 000 216 000 250 000 171 000 245 000 285 000 175 000 249 000 290 000 207 000 295 000 346 000 196 000 280 000 325 000 230 000 330 000 385 000 267 000 381 000 445 000 255 000 365 000 425 000 280 000 400 000 465 000 335 000 477 000 558 000 321 000 457 000 534 000 350 000 495 000 580 000 410 000 584 000 683 000 395 000 560 000 660 000 410 000 580 000 680 000 492 000 701 000 820 000

195 280 330 205 300 360 280 390 460 310 440 520 290 420 490 390 560 650 430 620 720 530 750 880 580 820 960 670 960 1 120 760 1 090 1 270 730 1 040 1 220 1 000 1 400 1 650 1 110 1 580 1 850 1 070 1 500 1 800 1 350 1 900 2250 1 540 2 190 2 560 1 490 2 120 2 480 1 850 2 600 3 000 2 050 2 920 3 420 2 000 2 800 3 300 2 350 3 300 3 900 2 680 3 820 4 470

Liebherr-Norm_DE_V001.dot L566 - 460 / from 14171 L576 - 457 / from 14171 L580 - 459 / from 14171

Service Manual

General Informations Standard

Thread

Class

Assembly preloading forces FM in N

Tightening torques MA in Nm

Thread

Class

for avg. coefficient of friction ÂľG= 0.10

M36x3

M39

M39x1,5

M39x3

8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9

455 000 650 000 760 000 510 000 730 000 850 000 601 000 857 000 1 002 000 550 000 780 000 910 000

2200 3100 3600 2700 3800 4500 3140 4470 5230 2800 4000 4700

Assembly preloading forces FM in N

Tightening torques MA in Nm

for avg. coefficient of friction ÂľG= 0.12

M36x3

M39

M39x1,5

M39x3

8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9 8.8 10.9 12.9

440 000 630 000 740 000 490 000 700 000 820 000 582 000 830 000 971 000 530 000 750 000 880 000

2 500 3 500 4 100 3 000 4 300 5 100 3 430 4 890 5 720 3 200 4 600 5 300

Comments concerning this standard: The tightening torques indicated on the drawings supersede the standard works values. These must be observed and adhered to. This standard only applies to Liebherr wheel loaders.

L576 - 457 / from 14171 L580 - 459 / from 14171

MJFCIFSS

Liebherr-Norm_DE_V001.dot

1.3-3 o f 6

2 Production description 2.0 Chapter contents 2

Production description......................................................... 2.0-1 2.1

L550 - 456 / from 16978 L556 - 454 / from 15653 L566 - 460 / from 14171

Technical data ................................................................................2.1-1 2.1.1

Complete machine................................................................2.1-1

2.1.2

Diesel engine and pump distributor gear..............................2.1-8

2.1.3

Cooling system ...................................................................2.1-12

2.1.4

Travel hydraulics ................................................................2.1-13

2.1.5

Working hydraulics .............................................................2.1-16

2.1.6

Steering system..................................................................2.1-20

2.1.7

Brake system......................................................................2.1-23

2.1.8

Electrical system.................................................................2.1-25

2.1.9

Transmission ......................................................................2.1-26

2.1.10

Axles and cardan shaft .......................................................2.1-27

2.1.11

Machine frame and ballast weight......................................2.1-31

2.1.12

Automatic central lubrication system..................................2.1-31

2.1.13

Cab, heating and air-conditioning.......................................2.1-33

2.1.14

Lift arms and quick-change device.....................................2.1-35

2.1.15

Equipment and accessories ...............................................2.1-38

L576 - 457 / from 14171 L580 - 459 / from 14171

MJFCIFSS

2.0-1 o f 2