Liebherr LTM 1220-5.2 - Manual (Page 7)

100 m
90 m
80 m
70 m
60 m
50 m
40 m
30 m
20 m
10 m
110 m
5630
10 t
R = 4850
3600
10 t
12 t
54 t
10 t
10 t
10 t
12 t
22,5°
45°
7 6 LTM 1220-5.2 LTM 1220-5.2
• Crane engine: 4-cylinder Liebherr turbo-charged diesel
engine type D934L A6 with 180 kW/245 hp, exhaust gas
emissions in accordance with the directives 97/68/EC Stage
3 and EPA/CARB Tier 3, robust and reliable, located opposite
the crane cab, thus lower noise emissions, electronic engine
management, optimized fuel consumption, stainless steel
exhaust gas system
• Hydraulic system with 5 axial-piston variable displacement
pumps with servo control and capacity regulation,
electronically-controlled oil cooler as standard
• Highly-efficient noise abatement of the diesel-hydraulic crane
drive as standard
Crane drive with
field-proven components
oviform boom profile
• Liebherr-built winches (hoist gear 1 and 2) with special
grooving, with integrated planetary gears and spring-mounted
multi-disc brakes as static brakes
• Liebherr-built axial-piston constant-output engine, specially
designed for crane operation, exposed successfully to tough
fatigue tests
• Display of the winch rotation on the LICCON screen
• Non-rotating hoist rope
Liebherr winch technology
• Counterweight variants 12 t, 22 t, 34 t, 44 t, 54 t and 74 t
• Control of ballasting from the crane cab
• Quick ballasting by “key-hole” method
• Ballasting cylinder permanently mounted to superstructure
• Compact counterweight dimensions, e.g. 54-t counterweight
of only 3.6-m width
Ballasting –
in a matter of minutes
• 6-section, 60-m-long telescopic boom with rounded, oviform
bottom shell for high lateral stability
• Optimal utilisation of the telescopic boom due to a multitude
of telescoping variants
• 12.2-m – 22-m-long biparted swing-away jib extendable to
29 m and 36 m
• Swing-away jib mountable at 0°, 22.5° and 45°, hydraulic
fitting aid, hydraulic ram for continuous variation of the
swing-away jib from 0° – 45° (optional)
• Telescopic boom extension 7 m, resulting in a 7-m higher
attachment point for the swing-away jib
• Quick and easy re-reeving of the hoist rope by rope dead
end connection
• Load hook with rope dead end connection, cylindrical load
hook shape for easy displacement by rolling on the ground
Lifting of loads -
precise and safe
K 29 m
K 36 m
60 m
7 m
56 m
52 m
47.7 m
43.4 m
39.1 m
34.8 m
30.5 m
26.2 m
21.9 m
17.6 m
13.3 m