Liebherr LTM 1400-7.1 User Manual

Product advantages
mobile crane

Max. load capacity: 400 t
Max. height under hook: 130 m
Max. radius: 100 m

LTM 1400-7.1

4

11° 19°

14.00 R 25

1.9

R=13.1

R=14.05

12 t 12 t 12 t 12 t 12 t 12 t 12 t

R=11.4

16.56

18.45

R = 6.8

10

0,7

R = 5.6

R = 6.6

Compact, maneuverable and safe

• Overall length 18.45 m, carrier 16.56 m long

• Overhang angles, front up to 11°, rear up to 19°

• Smallest turning radius by active rear-axle steering, 13.6 m
over carrier

• Drive 14 x 6, axles 1, 3 and 5 are driven
Drive 14 x 8, axles 1, 3, 5 and 6 are driven; 6th axle activatable
for off-road displacement

• Driving axles with differential locks for lateral blocking to
increase the off-road quality

• Total weight 84 t, uniform axle load distribution (12 t) due to

3

6.8

6.23

hydropneumatic suspension "Niveaumatik"

9.5

• Telescopic boom guying system can technically carried along
by the crane

• For safe displacement, in addition to the service and parking
brakes, retarder in the TC-TRONIC gear and exhaust retarder
with Liebherr-additional braking system by valve control (ZBS)
as standard features; TELMA eddy-current brake on the 4th
axle (optional)

Modern drive concept

• Powerful, 8-cylinder Liebherr turbo-charged Diesel engine
D9508 A7 of 450 kW/612 hp, exhaust emissions acc. to
97/68/EG stage 3 and EPA/CARB Tier 3, robust and reliable,
modern electronic controlled engine management

• Automated gear system ZF-TC-TRONIC with converter and
retarder; 12 forward and 2 reversed speeds, automated
control

• Reduced fuel consumption due to a great number of speeds,
sensitive maneuvering due to converter

• 1-step, robust transfer case with transfer differential

• Weight-optimized, robust axles of minor maintenance, good
track keeping due to special drag-links and precise lateral
guidance; maintenance-free steering nuckles mounted on
steel-armoured rubber

• Maintenance-free cardan shaft; simple and quick fitting due
to 70° diagonal toothing

• Lateral force and maintenance free suspension rams, rams
protected against damage by plastic pipes

• Level regulation (suspension on "displacement mode") can
be performed automatically by pushbutton control from any
position

• Stable cornering ability of the crane due to cross-linkage of
the hydropneumatic suspension

• Max. displacement speed 80 km/h, max. gradability 39 %

LTM 1400-7.1 LTM 1400-7.1LTM 1400-7.1

Variable steering concept with "active
rear-axle steering"

Axles 4 – 7 provided for "active rear-axle steering”, 5 steering
methods are preselectable by fixed programs (P)

P1 Road displacement steering

Axles 1 – 3 are steered mechanically by means of the steering
wheel with hydraulic assistance. Axles 4 and 5 are steered
“actively”, speed-dependent up to 30 km/h in relation to the
degree of lock of the front axle, and set and blocked to straight
displacement at over 30 km/h. Axles 6 and 7 are steered
“actively”, speed-dependent up to 60 km/h, in relation to the
degree of lock of the front axles, and set electrohydraulically
to straight displacement up to 60 km/h. The modification of
the steering angle in dependance of the speed guarantees a
precise and stable displacement quality and reduces the
abrasion of the pneumatics.

P1

P2

P2 All-wheel steering

Axles 4 – 7 are locked in conformance with the steering angle
of the 1st axle by means of the steering wheel to realize the
smallest turning radii.

P3 Crab steering

Axles 4 – 7 are locked in the identical sense of axles 1 – 3 by
means of the steering wheel.
necessary for crab steering as all axles are steered.

P4 Steering without swerving out

Axles 4 – 7 are locked in relation to the steering angle of the
1st axle to prevent

P5 Manual crab steering

Axles 1 – 3 are steered by means of the steering wheel, axles
4 – 7 are steered independently from the steering lock of axles
1 – 3 by pushbuttons.

• In case of a failure of the active rear-axle steering, it is rendered
ineffective and the rear axles are set to straight travel by the
centering rams

• Two independent hydraulic circuits with wheel and engine
driven hydraulic pump, thus maximum safety standard

• Two independent steering processors
(by existing E/A modules) and divergent sensory system

• The entire know-how for the "active rear-axle steering"
by Liebherr

any swerving out of the rear of the carrier.

The raising of the axles is not

P3

P4

P5

LTM 1400-7.1LTM 1400-7.1

310

600

Setting crane on outriggers –
quick, convenient and safe

• Supporting basis: 10 m x 9.5 m or 10 m x 6.23 m

• Fixed suporting pads with lateral compensation

• Supporting rams with 600 mm travel

• Level control of the outriggers, all-automatic levelling of the
crane during the supporting procedure by "push-button
control"

• 2 x 9° lateral inclination of the carrier, thus simple underlay
of the supporting pads

• Inclinometer (electronic inclination indication), two displays
on the carrier and a display on the LICCON monitor in the
crane cab

• 2 supporting force indicators on the control panels on the
carrier and on the LICCON display screen to indicate the
supporting force on the supporting rams

• 4 projectors for the illumination of the supporting zone

• Axle locking (blocking of the suspension for the displacement
with equipment) controllable from the driver’s cab

• Operation of the outrigger system in accordance with the
rules for the prevention of accidents

Comfortable driver’s cab of
outstanding functionality

• Modern driver’s cab of outstanding functionality and
convincing design. Corrosion resistant sheet steel version,
cataphoretic dip-primed, front section mounted on shock
absorbers, rear damped hydraulically, internal sound and
heat absorbing panelling

• Safety glas all-round, greenish tinted front and side windows
for heat insulation, electric window lifters

• 3 automatic windscreen washers/wipers with intermittent
control

• Heated and electrically adjustable outer rear mirrors

• Air-cushioned driver’s and co-driver’s seat with headrests,
driver’s seat with pneumatic lumber support

• Safety belts for driver’s and co-driver’s seat

• Height and inclination adjustable steering wheel

• Standardized, digital operating and control instruments
arranged ergonomically for safe and convenient handling,
arranged operator-friendly in a half-round shape

• Digital display and keyboard units interconnected with the
functional blocks by data bus technology

• Additional heater with engine preheating

4 9

LTM 1400-7.1 LTM 1400-7.1