Liebherr LR 1130 - Manual (Page 6)

Engine
Power rating according to ISO 9249, 270 kW (362 hp) at 2000 rpm
Engine type Liebherr D 936 L A6
Fuel tank 830 l capacity with continuous level indicator
and reserve warning
Engine complies with NRMM exhaust certification EPA / CARB Tier 3
and 97/68 EC Stage III
Hydraulic system
A double axial displacement pump supplies the open loop hydraulic system,
allowing all functions to be operated simultaneously. To minimize peak
pressure an automatic working pressure cut–off is integrated in the pump.
All filters are electronically monitored.
The use of synthetic environmentally friendly (biodegradable) oils is possible.
Working pressure max. 350 bar
Oil tank capacity 650 l
Main winches
Line pull (1 st layer) max. 175 kN
Line pull (7 th layer) 120 kN
Rope diameter 26 mm
Drum diameter 580 mm
Rope speed m/min 0 – 136
Rope capacity in 7 layers 489 m
The winches are outstanding in their compact design and easy assembly.
Propulsion is via a planetary gearbox in an oil bath.
Load support by the hydraulic system; additional safety factor provided by a
spring loaded, multi–disc holding brake.
The main winches use pressure controlled, variable flow hydraulic motors.
This system features sensors that automatically adjust oil flow to provide max.
winch speed depending on load.
Option – winch with freefall system:
Clutch and braking functions on the freefall system are provided by a compact
designed, low wear and maintenance free multi–disc brake.
Luffing jib winch
Line pull max. 105 kN
Rope diameter 20 mm
Jib luffing 46 sec. from 15º to 78º
Boom winch
Line pull max. 217 kN
Rope diameter 24 mm
Boom up 96 sec. from 15º to 86º
Crawlers
Propulsion through axial piston motor, hydraulically released spring loaded
multi–disc brake, crawler tracks, hydraulic chain tensioning device.
Flat track shoes 1000 mm
Drive speed 0 – 2.1 km/h
Noise emission
Noise emissions correspond with 2000/14/EC directive on noise emission
by equipment used outdoors.
6 LR 1130
Technical description
Swing
Consists of rollerbearing with external teeth, swing drive with fixed axial
piston hydraulic motor, spring loaded and hydraulically released
multi–disc holding brake, planetary gearbox and pinion.
Both swing modes are possible – speed control or free swing.
A multi–disc holding brake acts automatically at zero swing motion.
Swing speed from 0 – 3 rpm continuously variable.
Control
The control system – developed and manufactured by Liebherr – is
designed to withstand extreme environmental conditions such as
temperature, vibration and electromagnetic interference and to meet all
requirements that are needed in heavy duty crane operation.
Complete machine operating data are shown on a high resolution display.
Standard operational information is displayed by means of graphical
symbols, fault indications are displayed in plain text (more than 15
languages available).
The cranes are equipped with proportional control for all main movements,
which can be carried out simultaneously.
The crane is operated with 2 multi–directional joysticks, the right for winch I
and boom, the left for winch II and swing control.
Option:
Bi–directional double T–levers for simultaneous boom and luffing jib
operation.
The crawlers are activated by the two central foot pedals. Additionally,
hand levers can be attached to the pedals.
Remote control for assembly of counterweight.