Liebherr LR 1300 - Manual (Page 7)

LR 1300 7
Technical description
Engine
Power rating according to ISO 9249, 390 kW (523 hp) at 1900 rpm
Engine type
Liebherr D 856 A7 SCR
Fuel tank 900 l capacity with continuous level
indicator and reserve warning
Engine complies with NRMM exhaust certification EPA/CARB Tier 4i
or 97/68 EC Stage IIIB.
Hydraulic system
An axial displacement pump supplies the open loop hydraulic
system for boom luffing, jib luffing and travel. The main hoist winches
and swing are operated in a closed loop system. All functions
can be operated simultaneously. To minimize peak pressure an
automatic working pressure cut–off has been installed. All filters are
electronically monitored.
The use of synthetic environmentally friendly (biodegradable) oils is
possible.
Working pressure
max. 350 bar
Oil tank capacity 900 l
Luffing jib winch
Line pull max. 105 kN
Rope diameter 20 mm
Jib luffing 69 sec. from 15° to 78°
Boom winch
Line pull max. 217 kN
Rope diameter 24 mm
Boom up 127 sec. from 15° to 86°
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 – 1.8 rpm continuously variable.
Main winches
Line pull (1st layer) max. 215 kN
Line pull (7th layer) 150 kN
Rope diameter 28 mm
Drum diameter 730 mm
Rope speed m/min 0 – 138
Rope capacity in 7 layers 570 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.
Crawlers
Propulsion through axial piston motor, hydraulically released spring
loaded multi–disc brake, crawler tracks, hydraulic chain tensioning
device.
Flat track shoes
1200 mm (optional 1500 mm)
Drive speed 0 – 1.3 km/h
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 foot pedals. Additionally, hand
levers can be attached to the pedals.
Remote control for assembly of counterweight and boom hinge pins.
Noise emission
Noise emissions correspond with 2000/14/EC directive on noise
emission by equipment used outdoors.