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LIEBHERR MK 73-3.1

BASIC CONFIGURATION
Basic configuration – Outreach 38.5 m –
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Hook height with horizontal jib 26.5 m
Comprising:

Crane Chassis
Liebherr 3-axle front-steer chassis,
front shunting coupling, tool kit, storage box
for outrigger pads

Engine
Cummins inline 6-cylinder diesel engine,
power output 243 kW (326 HP), exhaust system with
integrated spark arrester, exhaust emissions in accordance with Regulation (EU) 2016/1628 and EPA/CARB

Transmission
Automated ZF Traxon transmission,
12 forward and 2 reverse gears, two-stage
transfer gearbox, axle drive 6 x 4,
axles 2 and 3 driven,
level-controlled suspension, spring travel -100/+100 mm

Hydraulic Outriggers
Operation via portable control console with
Bluetooth (BTT), automatic leveling,
electronic tilt indicator,
support pressure indicator

Tyres
6 pcs, 385/95 R25 (14.00 R25)

Steering
All axles steered, dual-circuit system,
active rear axle steering with 5 driving modes:
1. Road drive (all axles steered)
2. All-wheel steering (tightest turning radius)
3. Crab steering
4. Reduced sweep
5. Independent steering

Brakes
Dual-circuit pneumatic disc brake system on all wheels

Driver’s Cab
Heated exterior mirrors, main mirrors electrically adjustable, electric
window regulators, air-conditioned, pneumatically suspended driver’s seat with lumbar support and seat heating, infinitely adjustable steering wheel in height and inclination, air conditioning, Bluetooth radio, reversing camera, 12V, 24V, and 230V sockets, USB charging port, auxiliary heater independent of engine incl. timer, 6 kg fire extinguisher

Electrical Generator
The electrical generator is connected via a cardan shaft to the PTO
of the transfer gearbox. In PTO mode, the three-phase generator is driven to generate electricity. Generator output is 40 kVA (400/230 V).

Electrical System
24 V DC, 2 batteries (340 Ah), 4 revolving beacons (yellow),
outtrigger lighting, 1 socket at rear of vehicle (15-pole – 24 V),
external power supply connection for crane
400V/50Hz, electrical distribution 1 x 32 A CEE, 2 x 16 A CEE, 3 x safety sockets (Schuko) with RCD for external consumer connection, battery charger to recharge chassis battery during generator and mains operation, acoustic reverse warning

Slewing Platform
Liebherr slewing ring with central lubrication system, power slip ring to vehicle chassis

Tower
Telescopic tower lattice mast construction, single telescopic,
standard intermediate hook height 15.3 m

Jib
3-section lattice jib structure,
various mounting curves for the jib,
15°/30°/45° jib luffing positions,
site lighting equipment with 5 x floodlights on tower and jib,
aviation warning system switchable between flashing or permanent light

Drives
Hoist mechanism, trolley travel, luffing winch, and slewing drive continuously variable drive with frequency converter

Crane Control
Programmable logic controller (PLC),
work area limitation (WAL),
load sway damping and wind load control,
wind gauge

Modem
Liebherr telematics unit (pre-installed hardware)
for optional LIDAT functionality,
compatible with mobile standards 2G/3G/4G (for all countries except North and South America)

Radio Remote Control
Radio remote control with display

Trolley Winch
Trolley Plus: additional load curves in 15° and 45° luffing positions

Hoist Mechanism
Hoist mechanism 18.0 kW

Signs
Warning and information signs in German, English, French

Slewing System
Hydraulic jib slewing system

Operator’s Lift Cabin
Infinitely height-adjustable operator station
with it

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