Hydraulic Diagram For Liebherr 544

Technical Data Piling and drilling rig

LRB 255

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Sheave head Rope crowd system (RDS) Auxiliary winch Tool with quick connection Lateral inclination device Leader Leader support arm Longitudinal inclination device Vertical travel device Support arm brace Leader swing device Radius adjustment device Basic machine

F High engine output with automatic engine speed control F Controlled entirely from cab F Sturdy and solid rig design F Wide longitudinal and lateral supporting system on the basic machine through triangles F High push and pull forces F High torque F Fast and easy assembly of leader extensions without auxiliary devices F Completely self - rigging (no auxiliary machines required) F Large range of working tools (all piling and drilling works can be performed) F Leader swing range +/- 90º

F Stepless inclination 1:6 forward 1:3 backward depending on type of equipment F Increase of effective leader length (3m) via vertical travel device F Adjustment of lateral inclination independent of longitudinal inclination F Automatic vertical alignment F High alignment forces F Simultaneous control of several movements via Load-sensing multi-circuit hydraulics F Quick change of equipment possible through quick connection (e.g. mounting of boom for lifting purposes) F Equipment design according to latest European regulations and norms F High manufacturing quality through quality control by PDE-system

Concept and caracteristics

Transport complete

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The transport weight includes the basic machine (ready for operation), 27.800 lbs counterweight and leader without working tools (such as drilling drive and torque support). Leader length (ft) 70 80 90 100

Weight of leader (lbs) 171.500 173.900 176.400 179.000

Transport in parts

Ñ The transport weight includes the leader without working tools (such as drilling drive and torque support). Leader length (ft) 70 80 90 100

Weight complete (lbs) 58.900 61.300 63.700 66.400

The transport weight includes the basic machine (ready for operation). Basic machine LRB 255 Counterweight (lbs) (lbs) 84.900 27.800

Transport dimensions and weights

Counterweight 27.800 lbs

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Leader lengths 70 / 80 / 90 / 100 Max. capacity: hammer including cap 66.100 plus pile 33.100 Max. hammer weight 33.100 Max. pile weight 88.200 Max. pull, leader on ground 217.000 Max. torque Working radius machine 13.1 - 18.7 center of rotation - center pile Stepless rig inclination adjustment +/-1:20 Lateral inclination 1:6 Forward inclination 1:3 Backward inclination Vertical travel Leader adjustment above ground level 10 (depending on leader length) Leader adjustment below ground level 16 (depending on leader length) +/-90º Leader swing range

ft lbs lbs lbs lbs ft.lbs. ft

ft ft

basic machine LRB 255

Operating weight and ground pressure: The operating weight includes the basic machine LRB 255 (leader length 70 ft, without working tools) and 27.800 lbs counterweight. Total weight with 32" triple grouser track shoes Ground bearing pressure

172.000 lbs 14.5 psi

Total weight with 35" triple grouser track shoes Ground bearing pressure

173.100 lbs 12.9 psi

Engine

Water-cooled, V 8 cylinder Liebherr diesel engine, model D 9408 TI-E, turbocharged with intercooler, power rating according to ISO 9249: 544 HP at 1900 rpm. Option: Water-cooled, V 12 Daimler Chrysler diesel engine, model LOM 444 LA, turbocharged with intercooler, power rating according to ISO 3046 IFN: 811 hp at 1900 rpm. The automatic limiting load control adapts perfectly the power of the main users to the present engine speed. Fuel Tank: 214 gal capacity with continuous level indicator and reserve warning.

Hydraulic system

The main pumps are operated by a distributor gearbox. Axial piston displacement pumps work in open circuits supplying oil only when needed (flow control on demand). The hydraulic pressure peaks are absorbed by the integrated automatic pressure compensation, which relieves the pump and saves fuel. Pump for working tools: 2x 79 gal/min and 1x 106 gal/min 18 gal/min Separate Pump for kinematic: 82 gal/min Separate Pump for crowd system: 264 gal Hydraulic oil tank: 5076 psi Max. working pressure: Specific hydraulics supply power to all components dependent on the type of application. No auxiliary power packs are required. The cleaning of the hydraulic oils occurs via an electronically monitored pressure and return filter. Any clogging is shown on the display in the cab. The use of synthetic environmentally friendly oils is also possible.

Rope Crowd System (RDS)

Crowd force push/pull: 99.200 lbs 33.100 lbs Line pull (nominal load): 24 mm Rope diameter: 19 inch Drum diameter: 0 - 285 Max. line speed ft/min: The winches are noted for their compact, easily mounted design. Propulsion is via a maintenance free planetary gearbox in oil bath. Load support by the hydraulic system; additional safety factor by a spring-loaded, multi-disc holding brake.

Auxiliary winch

Line pull (nominal load): 17.600 lbs 20 mm Rope diameter: 13 inch Drum diameter: 0 - 200 Max. line speed ft/min: The winches are noted for their compact, easily mounted design. Propulsion is via a maintenance free planetary gearbox in oil bath. Load support by the hydraulic system; additional safety factor by a spring-loaded, multi-disc holding brake. Other winches on request!

Technical Data

Swing drive

Consists of single row ballbearing, fixed axial piston hydraulic motor, spring loaded and hydraulically released multi-disc holding brake, planetary gearbox and pinion. Free swing with hydraulic moment control reduces wear to a minimum, because rotation moment is sustained through the hydraulic system by the diesel engine. Swing speed from 0 - 4.5 rpm is continuously variable.

Crawler

The undercarriage can be adjusted automatically from transport to operation width via hydraulic cylinders. Propulsion through axial piston motor, hydraulically released spring loaded multi-disc brake, maintenance free crawler tracks, hydraulic chain tensioning device. Triple grouser track shoes. 0 - 0.9 mph. Drive speed: 139.000 lbs Track force:

Litronic-Control

The control system - developed and manufactured by Liebherr - is designed to withstand extreme temperatures and the many heavy-duty construction tasks for which this machine has been designed. Complete machine operating data are displayed on a high resolution monitor screen. To ensure clarity of the information on display, different levels of data are shown in enlarged lettering and symbols. Control and monitoring of the sensors are also handled by this high technology system. Error indications are automatically displayed on the monitor in clear text. The crane is equipped with proportional control for all movements, which can be carried out simultaneously. The Redundant" control system allows restricted operation of the machine in the event of a failure on the electronic base control or its sensors. Two joysticks are required for operation. Pedal control can be changed to hand control. Options : F PDE : Process data recording F GSM modem

Noise emission

108 dB (A) at 50 ft. 77 dB (A) inside the cab.

Double rotary drilling

Continuous flight auger drilling

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Technical Data: Drilling drive I torque Drilling drive I speed Drilling drive II torque Drilling drive II speed

Option 1:

1st gear 130.000 ft.lbs 2nd gear 65.000 ft.lbs 1st gear 2nd gear 1st gear 2nd gear

1st gear 2nd gear Max. drilling diameter

Option 2: 181.000 ft.lbs 90.400 ft.lbs

8 rpm 16 rpm 60.000 ft.lbs 30.000 ft.lbs

20 rpm 40 rpm 181.000 ft.lbs 90.400 ft.lbs

16 rpm 32 rpm 35 inch

Drilling equipment

20 rpm 40 rpm 48 inch

Technical Data: Drilling drive - torque

1st gear 181.000 ft.lbs 2nd gear 90.400 ft.lbs

Drilling drive - speed

1st gear 2nd gear

Max. drilling diameter

20 rpm 40 rpm 39 inch

Technical data:

Kelly drilling 1st gear 181.000 ft.lbs 2nd gear 90.400 ft.lbs 1st gear 210.000 ft.lbs

Drilling drive - torque for casing installation

1st gear 2nd gear

Drilling drive speed

20 rpm 40 rpm

Max. drilling diameter with adapter

10 ft

Max. drilling diameter without casing oscillator

7.2 ft

Max. drilling diameter with casing oscillator

6 ft

Line pull kelly winch Line speed kelly winch

44.100 lbs 0-245 ft/min

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Transport dimensions Kelly-Type 3/28 3/32 3/36 4/65

L ft 36 41 44 57

Weight lbs 11.700 14.600 15.900 19.900

Alternative kellybars upon request

Drilling equipment

L1 ft 92 105 118 213

Working dimensions R ft 32.8 27.9 24.6 11.5

Drilling depth ft 85 98 111 207

Vibrator variable moment

Hydraulic hammer double acting

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Technical Data:

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Option I Option II

Static moment 0 - 174 Max. speed 2390 Max. centrifugal force 308.700 Weight without clamp 11.900 Dyn. weight incl. turn plate, guides and double clamp 8.400 Max. amplitude 0 - 0.55 Length 55 Width 28 Height (without clamp) 10.1 Min. width 28

ft.lbs 0 - 290 ft.lbs rpm 2000 rpm lbs 385.800 lbs lbs 13.700 lbs lbs inch inch inch ft inch

15.200 0 - 0.75 103 30 8.9 13

lbs inch inch inch ft inch

Pile driving equipment

Technical Data: Ram weight 10.300 lbs 47.000 ft.lbs Max. energy output 18.100 ft.lbs Min. energy output Blow rate varies with energy output 80 - 120 blows/min 17.6 ft Length Total weight 23.000 lbs

Push - pull equipment

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Technical Data: Max. pressing force per cylinder 441.000 lbs 4 Number of cylinders 26.500 lbs Total weight Suitable for: a) Silent sheet pile driving b) Silent foundation pile driving

Push - pull equipment

Hook / Slurry wall grab / Casing oscillator

See technical datasheet HS 843 HD

Foundation crane equipment

Set value, digital display Y direction

Freefall HW 1 and HW 2

Vibrator

Vibrator frequency display

Swing speed (1-2-3)

Vibrator pump pressure

Analog inclination display Cylinder for support arm brace

Additional pump 2 pressure

Blocking carriage locked

Engine speed

Adjustment carriage locked

Acoustic alarm deactivation

Set value, digital display X direction Inclination digital display

Drive limit

Cable length measurement

Clamping head pressure

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Rig inclination display

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Automatic rig alignment

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Automatic parallel adjustment of rig

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Working depth indicator

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Vibrator control

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Interface for PDE

Drilling operation preselection

Adjustment page symbol

Page forward/back symbol

The rig inclination in x- and y- direction is shown on the cab screen in large letters and in crosshair.

A push button automatically adjusts the rig to vertical position, independent of the current inclination.

A push button increases or reduces the rig radius, without modifying the adjusted inclination.

The length of the unreeled rope is measured on the crowd winch and displayed in large letters on the cab screen.

The vibrator control consists of stepless adjustment of the vibrator frequency, automatic clamping head system and stepless adjustment of eccentrics.

An interface transmits the data of the control system, e.g. working depth to the connected PDE system.

Litronic control system

PDE = Process data recording (additional equipment)

PDE - diagram

This module constantly calculates and stores the current working processes.

Measurements:

Measurements are constantly calculated during the working process. No special measuring process is required. External systems can also be connected to the system.

Display of measurement data:

Measurement data relevant to the working process are displayed on the monitor in the cab. The operator can then control the process and, if necessary, correct it.

Ñ Example of a protocol (in required language):

Working process interruption:

The working process and the measurement can be interrupted at any time. The measurements are automatically continued upon resumption of work.

Storage of measurement and machine data:

All data are stored on a memory card. This can be read via a PC. Thereby an evaluation and processing of data can also be performed at a later time. For example, for:

8900 572 14 06/2002 Subject to change without notice.

l client certifications l conveying daily production data, down time, etc. l Soil condition report.

Printing data:

A protocol can be printed out from the cab printer after each working process.

Data transmission:

A GSM modem can be connected to the PDE making long distance data transmission possible.

MANUFACTURER: LIEBHERR-WERK NENZING GMBH, P.O. Box 10, A-6710 Nenzing / Austria / Europe Tel. (01143) 5525 - 606 - 473, Fax (01143) 5525 - 606 - 499 [email protected] www.liebherr.com

US SALES: LIEBHERR NENZING CRANE CO. 1400 East North Belt, Suite 160 77032 Houston, Texas Tel. (281) 219-7129 / Fax: (281) 219-7134 [email protected]

LOCAL DEALER: