Liebherr LTR 1100 - Manual (Page 13)

LTR 1100 13
The central greasing
• Standard central greasing device
for slewing bearing, boom bearing,
luffing cylinder and winch bearing
• Even supply of grease
• Filling quantity visible at any time
in transparent reservoir
With proven components
The drive components for the crane operation are designed for high perform-
ance and provide for sensitive and precise handling of the load. They are spe-
cially tuned for the crane operation and proved in severe long-term tests.
• Crane engine: 4-cylinder Liebherr turbo diesel engine, 129 kW/175 HP
at 1800 rpm, max. torque 815 Nm at 1100 – 1500 rpm, optimized fuel
consumption by electronic engine management
• Diesel-hydraulic crane drive, open hydraulic circuits with electric
„LOAD SENSING“-control, 4 working motions simultaneously possible.
• Electric/electronic SPS-crane control via the LICCON-computer system
• Slewing gear reversible from open to hydraulically locked, so the slewing
motion can be optimal adapted for the different operation conditions, e. g.
sensitive for installation work or fast for cycle work
• In-house fabricated Liebherr winches, 88 kN rope pull at the outer layer,
less reeving necessary due to high line pull
Powerful crane drive
Single stage
telescoping
cylinder with
hydraulic
locking
Luffing cylinder
Liebherr
hoist winch
Liebherr
slewing gear
Gear type pump
Double variable axial
piston pump
Liebherr
diesel engine
Sensors
LICCON
control
Control block
Control
sensor
LICCON-
monitor
The slewing gear
• Liebherr planetary gearbox,
spring loaded multi disk brake
• Reversible open or hydraulically
locked as standard
• Slewing speed from 0 – 1.8 min -1
infinitively variable
• 5 stages between 10 % and
100 % preselectable