Liebherr MK 88 - Manual (Page 7)

7 MK 88
Crane carrier
Frame
Outriggers
Engine
Transmission
Axles
Suspension
Tyres 8 tyres. Tyre size: 14.00 R 25.
Steering
Brakes
Driver’s cab
Electrical system
FC hoist gear
Power supply
Slewing platform
Crane superstructure
Jib
Telescopic tower
Switchgear
Trolley travel gear
FC slewing gear
Trolley travel gear with frequency converter
and continuously variable speed.
Programmable logic control system (PLC).
Additional equipment
0°- 15° - 30° - 45°
jib position
Transport of crane
in erected position
Elevating cabin
Tensioning of trolley
and hoist ropes
Equipment Additional heating in the driver’s cab.
Equipment Equipment for construction site lighting:
5 x 1500 W halogen lights.
Liebherr designed and manufactured, box
type, torsion resistant design of high-tensile
fine grained structural steel.
4-point support, all-hydraulic horizontal and
vertical operation with remote control,
automatic outrigger levelling, electronic
inclination display.
6-cylinder Diesel engine, manufactured by
Liebherr, type D936L A6, water-cooled,
300 kW (408 HP) at 1900 min , max. torque
1872 Nm at - 1500 min .
Exhaust emissions acc. to 97/68/EC stage 3
and EPA/CARB Tier 3, electronic engine
management.
Fuel tank capacity: 350 l.
-1
-1
ZF 12-speed gear box with automatic control
system AS-TRONIC. Two-stage transfer case
with lockable transfer differential.
All axles steered. Axles 2, 3 and 4 driven, with
differential locks.
All axles with hydropneumatic suspension,
automatic levelling and hydraulic locking
facility.
ZF Servocom hydraulic power steering, dual
circuit system with hydraulic servo system
and auxiliary pump circuit, driven by the axle.
Active rear-axle steering with 5 electronic
travelling programmes. 1 and 2 axle
steered mechanically and 3 and 4 axle
steered electrohydraulically depending on
speed. Steering system acc. to EC directive
70/311/EEC.
st nd
rd th
Service brake: all-wheel servo-air brake, all
axles are equipped with disc brakes, dual
circuit. Hand brake: Spring-loaded, acting
on all wheels of axles 2, 3 and 4.
Sustained-action brake: Exhaust retarder with
additional Liebherr braking system.
Anti-lock device in conjunction with anti
skid control. Brakes acc. to EC directive
71/320 EEC.
Spacious, steel made, corrosion resistant
cab, cataphoretic dip-primed, on resilient
suspension with hydraulic shock absorbers,
sound and heat absorbing internal panelling
acc. to EC directive, safety glazing, opera-
ting and control instruments, comfortably
equipped with unobstructed view of the road.
Control of the electrical and electronical
components by modern data bus technique.
24 Volt DC, 2 batteries 170 Ah each, lighting
according to traffic regulations.
Steel-plate structure including tower pivot
bearing and connection to slewing ring.
Connection element to crane carrier is a
Liebherr slewing ring with internal toothing.
Slewing platform interlocking to undercarriage.
48.0 kVA diesel-powered generator, tank on
superstructure; alternatively power supply via
building site main cabinet (external current
connection 63 A / 400 V); power distributor
1 x 32 A, 2 x 16 A, 3 x earthed sockets 220 V.
Drives two drums, one for assembly and one
for hoisting. Frequency-converter control
provides continuously variable hoisting and
lowering speeds, with precision positioning
mode.
Continuously variable operating speed,
electronic wind load control and automatic
load oscillation damping. Counter-current
can be applied in absolute safety. Individually
adjustable rotational speed and torque control.
Telescopic tower of lattice construction with
tower lock to slewing platform.
Four-section jib, very high overhead assembly
curve so that only little space is needed for
erecting. Assembly takes place with a separate
winch and by engaging the jib assembly winch.
The jib is guyed by telescopic rods or cables.
Hydraulic jib slewing device.
During the assembly and disassembly
processes the hoist and trolley ropes are
tensioned automatically.
The elevating cabin with its 360 degree view
guarantees optimum visability.
Crane operator’s seat with the master
switches integrated into the armrests, ther-
mostat-controlled heating and ventilation,
lighting and a window wash/wipe system.
Electronic monitoring system EMS.
220 V socket.
A very favourable centre of gravity permits
transport of the crane in its erected position.
Standard jib positions achieved by shortening
the rear jib guying, possible when the crane
is in operating condition, via radio remote
control or from the elevating cabin.
For additional equipment such as 2 t
additional ballast for increase of lifting
capacity, TELMA, special paint finishes
etc., see price list or offer.