Liebherr LTM 1050-3.1 User Manual

L T M 105 0 - 3 .1Mobile crane

Max. lifting capacity: 50 t
Max. lifting height: 54 m
Max. working radius: 44 m

Mobile crane LTM 1050-3.1
Innovative and economical

2

LTM 1050-3.1

The Liebherr LTM 1050-3.1 mobile crane is characterised by its long telescopic boom, strong lifting ca­pacities, exceptional mobility and comprehensive comfort and safety equipment. This 50-tonne crane
features top-of-the-range technology for more effectiveness in practical operation.

• 38-m telescopic boom

• 16-m double folding fly jib with integrated assembly jib

• 36 tonne overall weight, incl. 7 tonne counterweight at 12 tonne axle load

• Vehicle width: 2.55 m with 445/95 R 25 (16.00 R 25) tyres

• Great flexibility of use due to optimum lifting capacities with full and partial counterweight

• Active, speed-dependent rear-axle steering

• Pneumatic disc brakes

• Sensitive working due to electronic crane control

LTM 1050-3.1

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4

Drive train

• Six-cylinder Liebherr turbo-diesel
engine, 270 kW/367 hp, max. torque
172 0 Nm

• Automated ZF AS-TRONIC gearbox,
12 forward and 2 reverse speeds

• 2-stage transfer case, 0.73 km/h
crawling speed

• Axles two and three driven, axle one
as option

LTM 1050-3.1

1183 0

6400

State-of-the-art chassis and drive technology

High mobility and cost effectiveness

A powerful six-cylinder Liebherr turbo-diesel engine with 270 kW/367 hp ensures
swift driving performance. The 12-speed ZF gearbox with automated AS-TRONIC
control system provides a high level of cost effectiveness and excellent comfort.

• Reduced fuel consumption due to the large number of gears and the high
efficiency of the dry clutch

• Excellent manoeuvrability and minimum crawling speed due to two-stage
transfer case

• ABV automatic blocking prevention with ASR slippage control

• Telma eddy current brake optional, wear free and comfortable

Compact, agile and weight-optimised

Thanks to its extremely compact design, the LTM 1050-3.1 can operate on the
smallest of construction sites. At an axle load of 12 t, it can drive with up to 7 t
of counterweight, making it flexible and economical to use.

• Chassis length only 9.26 m

• Smallest turning radius only 7.40 m

• Vehicle width only 2.55 m, even with 445/95 R 25 (16.00 R 25) tyres

• Tail swing radius
only 3.53 m

3509

Hydro-pneumatic suspension
Niveaumatik

• Maintenance-free suspension cylin­ders

• Large dimensions to cope with high
axle loads

• Suspension travel: +100/-100 mm

• High lateral stability when cornering

• Choice of driving states using fixed
programmes

3835

21°

9255
11613

7151

R = 7400

R = 8510

R = 9000

4274

Pneumatic disc brakes

• High braking power, improved control

• Improved directional stability

• No reduction of braking force at high braking
temperatures (fading)

• Longer service life

• Shorter labour times for changing the braking
pads

• Brake pads with wear indicators

2895

19°

S2172. 04

2550

4500

LTM 1050-3.1

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5 steering programmes

• Selection of programme by simple
push button

• Clear layout of control elements and
displays

• Programmes changeable during
driving

• Crab steering comfortably con­trolled by steering wheel

LTM 1050-3.1

Variable steering concept

Active rear-axle steering

The rear axles are actively electro-hydraulically controlled in accordance with
the speed and steering angle of the front axle.

Five different steering programmes (P) can be selected by touch button.

• Remarkably reduced tyre wear

• Improved manoeuvrability

• Stable driving condition even at high speeds

• All three axles can be steered

High safety standards –
entire know-how from Liebherr

• Centring cylinder for automatic straightening of rear axles in case of failure

• Two independent hydraulic circuits with wheel and engine driven hydraulic pump

• Two independent control computers

Centring cylinder on the rear axles

• Automatic straightening of rear
axles in case of failure

P1 Road steering

The axle 1 is mechanically steered by the
steering wheel. The axle 3 is actively steered
depending on the speed and on the steering
angle of the front axle. Above 30 km/h it will
be adjusted to straight driving and fixed

P2 All-wheel steering

The axles 2 and 3 are turned by the steering
wheel depending on the steering angle of the
front axle to provide for the smallest turning
radius

P3 Crab steering

The axles 2 and 3 are turned by the steering
wheel to the same direction as the steering
position of axle 1

P4 Reduced swing out

The axles 2 and 3 are turned depending on
the wheel turn of the 1. axle to minimize the
back swing of the rear of the chassis

P5 Independent rear axle steering

The axle 1 is steered by the steering wheel,
the axles 2 and 3 are steered by push but­tons independently from the steering angle
of the axle 1

LTM 1050-3.1

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The driver’s cab

• Corrosion resistant

• Electric window lifters

• Safety glass on all sides

• Tinted glass

• Heated and electrically adjustable
outside mirrors

• Air-sprung driver’s seat with lumbar
support

LTM 1050-3.1

700

Comfort and functionality

Modern driver’s cab and crane cab

Both the modern driver’s cab and the crane cab offer a comfortable and func­tional working environment. The control elements and displays are ergonomi­cally arranged. Thus a safe and fatigue free working is assured. For the driver
cabin, the crane cabin, the ignition lock and tank cap a single key system is
provided.

Speedy and safe set-up

Setting of the outriggers, counterweight assembly and attachment of addition­al equipment have all been designed with speed, safety and comfort in mind.
Specific ascents, handholds and rails are provided to ensure the safety of the
operating staff.

Supporting crane on outriggers –
quick, comfortable and safe

• BTT blue tooth terminal, mobile control
and display unit

• Electronic inclination display

• Fully automatic levelling by push button

• Engine start/stop and speed control

• Support area lighting with four inte­grated lights

• Support cylinder stroke: 650 mm front,
700 mm rear

• One-stage outrigger beams,
fully hydraulic, low-mainte­nance extension system

The crane cab

• Large field of vision

• Safety glazing

• Tinted window panes

• Crane driver’s seat with lumbar support,
multiply adjustable

• Heat and noise insulated interior clad­ding

• Corrosion resistant

• Working floodlight

• Engine-independent heating

LTM 1050-3.1

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Proven hydro-mechanical telescoping system

• Reliable single step double acting hydraulic cylinder

• Low centre of gravity due to double sheave block for
telescopic section 2 and 3

• Section 1 extended/retracted by hydraulic cylinder,
sections 2 and 3 by ropes

• High telescopable loads

LTM 1050-3.1

High lifting capacities and flexible boom system

High-capacity, long telescopic boom and
functional lattice extensions

The telescopic boom comprises the base section and three telescopic sections
which can be extended comfortably by a hydro-mechanic extension system to
any requested length.

• 38-m telescopic boom

• 9.2-m to 16-m folding double fly jib, attachable at 0°, 20°, 40° and 60°

• 1.4-m assembly jib, consisting of the fly-jib adapter and an additional sheave
set or a hook beam

High lifting capacities both with full and partial
counterweight offer a wide operational range

• High lateral stability due to the oval boom profile

• Telescoping under load

• Lifting capacity: 7.5 t at 38 m lifting height

• Maximum hook height: 54 m

• Maximum radius: 44 m

The assembly jib

• Integrated in folding fly jib

• With sheave set or hook beam

• Attachable under 0°, 20°, 40° and 60°

LTM 1050-3.1

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12 t 12 t 12 t

Variable counterweight

Counterweight assembly – a matter of minutes

• Multiple counterweight variations from 4.4 t to 9 t

• Rapid ballasting with keyhole technology from within the crane cab

• Compact counterweight dimensions: with 9 t counterweight, the width is only 2.54 m

• Tail swing: only 3.5 m

• 36 t total weight incl. 7 t counterweight at 12-t axle load

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The hoist gear

• Hoist gear with integrated planetary
gear and spring loaded multi-disc
brake

• Line pull 45 kN at outer layer

• Maximum line speed 120 m/min

• 2. hoist gear optional

LTM 1050-3.1

High-power crane drive

With tried-and-tested components

The drive components for crane operation are designed for high performance and
ensure sensitive and precise load handling. They are specially designed to suit the
crane’s usage and have been subjected to hard endurance tests.

• Crane drive from chassis engine

• Optimized fuel consumption by electronic engine management

• Diesel-hydraulic crane drive, open hydraulic circuits with electronic “Load Sens­ing” control, 4 working movements simultaneously possible

• Electric/electronic SPS crane control through the LICCON computer system

• Comfort armrest control with 2 self-centering, 4-fold multifunctional joysticks,
stepless control of all crane movements, with vibration joysticks for slewing gear
and winch operation, electronic pilot control

• Slewing system changeable from open to hydraulically locked as standard, thus

0.4 t

0.3 t

the movement can be adjusted to the different operational conditions, e. g. sen­sitive control for assembly work or fast cycle work

Control sensor with touch sensitive displays

4.4 t

1.1 t

0.9 t

1.2 t

0.7 t

Basic counterweight 7 t
Additional counterweight 2 t

Total 9 t

The slewing gear

• Planetary gear, spring loaded multi-disc brake

• Slewing speed from 0 – 1.9 m/min step less
adjustable

• Slewing gear changeable from open to hydrau­lically locked

LICCON

screen

Sensors

Liebherr

diesel engine

Control block

Luffing

cylinder

Swivel connection

Variable displace­ment pump

Telescopic

cylinder

Gear pump

Hoist gear Slewing gear

Centralised lubrication

• Centralised lubrication system as
standard for slewing ring, boom bear­ings, luffing ram and winch bearings

• Uniform application of lubricant

• Lubricant level visible in transparent
container at all times

Control unit

LTM 1050-3.1

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The LICCON test system

• Rapid localisation of problems on­screen without any measuring instru­ments

• Display of error codes and descrip­tions

• Convenient interactive functions for
monitoring all inputs and outputs

• Displays of functions and allocation of
sensors and actuators

LTM 1050-3.1

Intelligent crane control

For functional and safe crane operation:
the LICCON computer system

The soft and hardware of the mobile crane control is developed by Liebherr in­house. The centre is the LICCON computer system (Liebherr Computed Control).

• Integrated LML load moment limiter

• Key components are in-house manufactured by Liebherr

• Guaranteed spare parts availability

• Worldwide proven under the most different climate conditions

• Operator friendly

The second control generation LICCON2 is the result of a continuous
development by the Liebherr specialists and enables the adaption to the con­stantly increasing demands of the markets due to its modern and future
oriented control.

The data bus technology

Liebherr mobile cranes are completely interlaced by the data bus system. All
important electric and electronic components are equipped with own micro­processors and communicate with each other by only limited data cables. For
the special demands of the mobile crane Liebherr has developed own data bus
systems (LSB – Liebherr-System-Bus). The data bus technology improves the
reliability, the comfort and the safety for road driving and crane operation:

• Higher reliability due to remarkable lesser electric cables and contacts

• Continuous self testing of the „intelligent sensors“

• Comprehensive diagnosis possibilities, fast fault finding

The LICCON working range
limiting system

• Relief for the crane operator’s job by auto­matically monitoring workspace restrictions
such as bridges, roofs, etc.

• Simple programming

• Four different limitation functions:

- Pulley-head height limitation

- Radius limitation

- Slewing angle limitation

- Edge limitation

The LICCON work planner

• Computer programme for planning,
simulating and documenting crane op­erations on a PC

• Representation of all the crane’s load
charts

• Automatic search for suitable crane
based on entry of load, radius and lifting
height parameters

• Simulation of crane operations with
outline functions and supporting force
display

LTM 1050-3.1

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LICCON2 – safe and comfortable

Attaching and detaching of the
hook block

The BTT – Bluetooth Terminal offers the crane driver the
possibility to attach or detach the hook block at the front
of the vehicle within sight, as the hoist winch and the luff­ing cylinder of the telescopic boom are remote controlled.

Wireless remote control
(option)

All crane motions can be controlled
outside of the cab.

• Higher efficiency

• Free view and closeness to the load

• Prevention of communication errors

Wireless remote control

between the crane driver and the
job site personnel

Colour monitor

The readability of the
data on the monitor of the
LICCON2 control system in
the crane cab is enhanced
by the colour display. Warn­ings and crane utilization are
considerably better recog­nized.

Crane support

By use of the BTT the mobile crane will
be setup comfortably and safely. En­gine start/stop and speed regulation,
electronic inclination display and auto­matic levelling are standard. Optionally
the BTT can also display the outrigger
forces.

Touch displays

Below the joy sticks integrat­ed in the armrests the touch
displays are installed, with
which the various operational
functions can be selected.
These are beside others the
drive and steering programs
of the chassis, the axle sus­pension, the supporting of
the crane, the adjustment of
the working floodlights as
well as heater and air condi­tion controls.

PN 18 5.01.E02. 2014

Liebherr-Werk Ehingen GmbH

Postfach 1361, 89582 Ehingen, Germany
 [phone], Fax [phone]
www.liebherr.com, E-Mail: [e-mail]
www.facebook.com / LiebherrConstruction

The pictures contain also acces sorie s and special equipment not included in the st andard s cope of de livery. Subject to modification