Liebherr LTM 1055-3-1 User Manual

The Mobile Crane
LTM 1055-3.1 for
military operations

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The standard mobile crane type LTM 1055-3.1
with optional equipment for special requirements

High load capacities, an extraordinary mobility, comprehen­sive convenience and safety equipment as well as a prac­tice-oriented transport concept for crane accessories and
optional equipment characterize the standard mobile crane
LTM 1055-3.1 from Liebherr, modied for the army.

The 3-axle, 55-tonner, positioned on outriggers or free on
wheels, offers outstanding load capacities. The 32,5 m long,
torsion-resistant telescopic boom lifts loads to 32 m height
under hook at radii of up to 28 m. Supporting basis and
counterweights are variable for a comprehensive applica­tion spectrum. High working speeds even permit the quick
handling of loads. The safe load indicator LICCON guaran­tees fully automatic control of the crane performance in all
operative ranges.

Outstanding
performance

The LTM 1055-3.1 is compact and maneuverable, its opera­tive weight is 36 tons with equal axle load distribution of 12 t
per axle and the control of relocating and setting on outrig­gers is even possible from the crane cab. The modern LIAS­DRIVE provides a crane-specic, intelligent travel strategy
for a smooth driving quality at economic fuel consumption.

High mobility and
efficiency

Driver’s cab and crane operator’s cab are modern, ergo­nomically designed working places. The standard cabs can
be interchanged with armoured versions within a few hours
if required. And instead of the standard tyre equipment, spe­cial tyres with emergency running capabilities provide for an
increased mobility.

Comprehensive
equipment for con­venience and safety

Containers are provided for the transport of the crane ac­cessories and the optional equipment. All accessories and
the optional equipment, required for everyday operation, are
stowed in containers, loaded on lorries by the crane and are
available for crane operation if required.

Practice-oriented
transport concept
for the optional
equipment

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The Liebherr standard mobile crane LTM 1055-3.1 is de­signed for high performance. The in-house fabricated and
eld-proven components such as Diesel engine, winch,
slewing gear and slewing ring are especially laid out for the
application on a mobile crane.

High load capacities, quick working cycles and sensitive op­erating motions permit perfect load handling. The telescopic
boom of inherent stability is extended by the convenient sin­gle-ram telescoping system Telematik to the desired boom
length. A multitude of telescoping variants permit optimal
utilization of the telescopic boom’s capacity.

Thanks to the high output of the Diesel engine and the pump
as well as to the regulated load-sensing control, four working
motions can be performed independently of one another.

The LTM 1055-3.1 offers a variable supporting basis and is
leveled automatically. The „key-hole method“ permits con­venient control of ballasting the crane from the crane cab.
4,7 t or 7 t partial ballast and 12 t maximum ballast allow vari­able and economic performance of the crane interventions.

Even at a failure of the Diesel engine or of the hydraulic
pump, the interrupted crane operation can be nalized by
means of the hydraulic emergency set and the crane can be
derigged into driving position.

Extraordinary
performance

Telescopic boom of high-tensile
grain rened steel S 1100

Control elements for the hydraulic
emergency actuation

Loading of a container

Displacement with a container

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Large overhang angle
at the carrier front

Maneuverable with
all-wheel steering

High propulsion forces
on difcult terrain

Compact dimensions, high driving speeds of up 80 km/h and
sensitive maneuvering as well as outstanding off-road mobil­ity characterize the all-terrain mobile crane LTM 1055-3.1.

A modern and robust displacement drive technology in
conjunction with an intelligent crane control warrants maxi­mum mobility for very varied requirements. For the vehicle
drive, the 50-tonner avails of a modern drive management.
Liebherr Diesel engine, ZF transmission, eddy-current brake
as well as the clutch and anti-lock device/automatic track
control are interconnected by an intelligent data bus technol­ogy. A very high computer performance ensures a reliable
co-ordination of the functional units and permits smooth
road travel at economic fuel consumption.

The crane and road preserving suspension “Niveaumatik”
guarantees stable cornering during fast driving on the road
and offers excellent off-road capabilities.

High mobility and
efficiency

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The LTM 1055-3.1 provides for comprehensive convenience.
During driving on the road, the spacious, silenced driver’s
cab offers an excellent view. Driver’s and co-driver’s seats
are pneumatically suspended, the steering wheel adjustable,
the rear mirrors heatable and electrically adjustable.

As safety of the crane personnel comes rst during military
interventions, the standard driver’s cab can be interchanged
with an armoured version with integrated emergency roof
exits. Rapid action couplings enable the easy interchange of
the cabs within a few hours. Even with armoured cabs, the
crane travels with a 12 t max. axle load.

In order to increase the mobility of the 55-tonner, the air pres­sure of all tyres can be reduced from 9 bar to 4 bar when not
in motion. This increases the tyre contact surface by up to
60 % and the driving on soft and less bearing soil is safe­guarded. The compressor of the braking system enables the
re-pressurizing of the tyre to 9 bar. Instead of the standard
tyre equipment, it is also possible to t tyres with emergency
running capabilities. In case of a tyre puncture, a fabric-rein­forced solid-rubber ring attached to the rim prevents the tyre
from slipping off, so that a distance of 10 kilometres can still
be covered at speeds of up to 25 km/h.

Comprehensive
equipment for con­venience and safety

Armoured driver’s cab according to
STANAG 4569, level 1

Comprehensive offer of convenience
for driver and co-driver

Roof exits in the armoured
driver’s cab

Semi-automatic tyre pressure
control device

Tyre ination by the airbox Special tyres with emer-

gency running inset

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Transport of armoured cabs Transport of the hydraulic emergency set Transport of the special tyres with Hutchinson

emergency running system

Accessory container with weather­protecting tarpaulins

For the various crane operations in the military arena, com­prehensive accessories for load handling and an optional
equipment for the protection of the crane personnel on criti­cal territory is available for the LTM 1055-3.1.

The transport of these accessories takes place in special
containers, the dimensions of which are adapted to the
transport vehicles. The 20’ standard container for crane ac­cessories carries the hook block, ballast, spare wheel, spac­ers, chain suspension tackle in light-gauge and heavy-gauge
version, various hooks and expanding struts as well as the
20’ spreader with automatic positioning device for loads of
up to 30.5 tons. By means of the adapter for the expanding
struts and the heavy-gauge chain tackle, loaded 20’, 30’ and
40’ containers can be handled.

For the transport of a driver’s cab or a crane cab each in
standard of armoured version another 20’ container is avail­able.

Equally, the hydraulic emergency set and 6 special tyres with
Hutchinson emergency running system are transported in
containers of special dimension.

All transport containers are equipped with weather-protect­ing tarpaulins.

Practice-oriented transport concept
for the optional equipment

Armoured crane operator‘s cab

20‘ standard container
for crane accessories

Liebherr-Werk Ehingen GmbH

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

Subject to modications. P 353.E08.2004

The Liebherr company Grues Mobiles SAS was awarded the
order for the delivery of 50 mobile cranes type LTM 1055/1 AF
from the procurement ofce D.G.A. / S.P.A.R.T. of the French
Ministry of Defence in December 2002. These are standard
cranes of the 55 t load capacity category which are modied
for military purposes with, e.g. armoured driver’s and crane
operator’s cabs. The execution of the order will extend until

2005.

Liebherr delivers 50 mobile cranes LTM 1055-3.1

to the French Ministry of Defence