Liebherr LTR 1220 - Manual (Page 15)

LTR 1220 15
With tried-and-tested components
The drive components for crane operation are constructed for high performance
and ensure sensitive and precise load handling. They are specially designed to
suit the crane’s usage and have been subjected to hard endurance tests.
• Crane engine: 6-cylinder turbo diesel engine, emission stage 3b acc. to
97 / 68 / EG, Tier 4i EPA / CARB. 230 kW / 312 HP, max. torque 1,300 Nm,
optimised fuel consumption by electronic engine management
• Sensitive motions of the hoist gears in closed hydraulic circuits
• Electric / electronic SPS-crane control via the LICCON-computer system
• In-house fabricated Liebherr winches, 105 kN rope pull at the outer layer,
less reeving necessary due to high line pull
Powerful crane drive
The slewing gear
• Liebherr planetary gearbox, spring
loaded multi disk brake
• Sensitive motions in closed hydraulic
circuit
• Slewing speed from 0 – 1.5 rpm
infinitively variable
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
LICCON
monitor
Control lever with touch displays
Control
unit
Telescoping
cylinder
Luffing
cylinder
Control block
Hoist gear I
Slewing gear
Diesel engine
Sensor
Hoist gear II
Control
unit
Control
unit
Control
unit
Engine control