Liebherr LTM 1250-6.1 - Manual (Page 3)

Mounting of counterweight –
just a matter of minutes
• Counterweight variants 0 t, 10 t, 22.5 t, 35 t, 47.5 t,
60 t, 72.5 t, 85 t and 97.5 t
• Ballasting controlled from the crane cab
• Quick ballasting due to the keyhole system
• Ballast rams fix-mounted to the superstructure
• Compact counterweight dimensions, e.g. 47.5 t counterweight
of 3 m width only
• 72 m long, 6-section telescopic boom
• Features of the new boom technology:
- optimimized, oviform boom profile – patented internal
interlocking system of the telescopes
- automatic telescopic system “Telematic”
• Telescopic boom with electronically controlled
telescoping system
• Boom bearings of low maintenance polyamide slide blocks
• Outstanding lifting capacities, e.g.
84 t at 10 m radius
38 t at 20 m radius
15.4 t at 40 m radius
8.4 t at 60 m radius
2.1 t at 80 m radius
1.1 t at 92 m radius
• 8-cylinder Liebherr turbo-charged Diesel engine type
D9508 A7, 450 kW/612 h.p., exhaust emissions acc. to
97/68/EG stage 3 and EPA/CARB Tier 3, energy-saving,
robust and reliable, electronic engine management
• Automated gear system ZF-TC-TRONIC with converter and
retarder; 12 forward and 2 reversed speeds, automated
control
• Robust transfer case with transfer differential
• Robust crane axles, welded design
• Max. driving speed 76 km/h, max. gradability 43 %
• Steel-fabricated, corrosion resistant cab, cataphoretic dip-
primed, front section on rubber shock absorbers, rear section
on hydraulic dampers, internal sound and heat absorbing
panelling, modern interior design of outstanding functionality
• Safety glass all-round, green-tinted heat-isolating front and
side window panes, electric window lifters
• Standardised digital operating and control elements arranged
in an operator-friendly halfround shape
• Additional heater with engine preheating
• Weight-optimized and low maintenance axles of high-tensile
steel, perfect track-keeping and lateral stability due to special
control linkage arrangement
• The low maintenance steering nuckles are steel and rubber
mounted, thus bearing failures are practically ruled out
• The perfected and robust axles are manufactured in large
series and are part of the trouble-free components of a
mobile crane
• The cardan shafts are maintenance-free. The 70° diagonal
toothing and 4 fixing bolts enable easy and fast fitting of the
cardan shafts
Ultramodern boom technology Powerful carrier drive
Modern and comfortable
driver’s cab
Outstanding carrier technology
for road and off-road operation
• Steel-fabricated and corrosion-resistant crane cab, powder-
coated, with internal sound and heat absorbing panelling,
modern interior design, tinted panes all-round, front knockout
window with large windscreen wiper and washer, skylight
of bullet-proof glass with large windscreen wiper and washer,
roller blinds on front window and skylight, space saving
sliding door
• Additional heater
with engine preheating
• Pneumatic operated footboard for safe access to the carrier
• Crane cab tiltable by 20° to the rear
• Crane engine: 4-cylinder Liebherr turbo-charged Diesel
engine type D934L A6 of 180 KW/245 h.p., robust and
reliable,exhaust emissions acc. to 97/68/EG stage 3 and
EPA/CARB Tier 3, electronic engine management, optimized
fuel consumption, exhaust gas system of stainless steel,
very efficient noise abatment of the dieselhydraulic crane
drive
• Slewing rim, slewing gear and the winches are self-
manufactured components specially matched for the
application on mobile cranes
• The centralized lubricating system for slewing rim, boom
bearing application, luffing rams and winch bearings is a
standard feature
Crane cab of modern design Crane drive with
field-proven components
• Maintenance-free suspension rams, free from lateral forces
and protected against damage by synthetic tubes
• Level adjustment (suspension set to “travel mode”) can be
performed automatically from any position by push-button
control
• Stable cornering ability of the crane due to cross mounting
of the hydropneumatic suspension
• Axle locking system (blocking of the suspension for travelling
with equipment) integrated into the suspension rams and
controllable from the driver’s cab
• Carrier, superstructure and telescopic boom in light-gauge
design, calculated by the F.E.M. method, thus weight-
optimized and particularly torsonally rigid
• Tensile property of the material with high safety factors
through the application of STE 960 (960 N/mm 2 ) for all
supporting members. Telescopic boom bottom shell of ultra-
high tensile steel S 1100 QL (1100 N/mm 2 )
• Weldment joints of oustanding quality are performed by
computer-aided welding machines
• The weld quality is documented by ultrasonic test
Crane- and road-preserving
Niveaumatik suspension
Weight-optimized steel structure
6.56
2.45
R = 5.6
12.5 t
12.5 t
12.5 t
12.5 t
47.5 t
12.5 t
12.5 t
12.5 t
10 t
47.5 t
3 4 12 LTM 1250-6.1 LTM 1250-6.1 LTM 1250-6.1
Mounting of counterweight –
just a matter of minutes
• Counterweight variants 0 t, 10 t, 22.5 t, 35 t, 47.5 t,
60 t, 72.5 t, 85 t and 97.5 t
• Ballasting controlled from the crane cab
• Quick ballasting due to the keyhole system
• Ballast rams fix-mounted to the superstructure
• Compact counterweight dimensions, e.g. 47.5 t counterweight
of 3 m width only
• 72 m long, 6-section telescopic boom
• Features of the new boom technology:
- optimimized, oviform boom profile – patented internal
interlocking system of the telescopes
- automatic telescopic system “Telematic”
• Telescopic boom with electronically controlled
telescoping system
• Boom bearings of low maintenance polyamide slide blocks
• Outstanding lifting capacities, e.g.
84 t at 10 m radius
38 t at 20 m radius
15.4 t at 40 m radius
8.4 t at 60 m radius
2.1 t at 80 m radius
1.1 t at 92 m radius
• 8-cylinder Liebherr turbo-charged Diesel engine type
D9508 A7, 450 kW/612 h.p., exhaust emissions acc. to
97/68/EG stage 3 and EPA/CARB Tier 3, energy-saving,
robust and reliable, electronic engine management
• Automated gear system ZF-TC-TRONIC with converter and
retarder; 12 forward and 2 reversed speeds, automated
control
• Robust transfer case with transfer differential
• Robust crane axles, welded design
• Max. driving speed 76 km/h, max. gradability 43 %
• Steel-fabricated, corrosion resistant cab, cataphoretic dip-
primed, front section on rubber shock absorbers, rear section
on hydraulic dampers, internal sound and heat absorbing
panelling, modern interior design of outstanding functionality
• Safety glass all-round, green-tinted heat-isolating front and
side window panes, electric window lifters
• Standardised digital operating and control elements arranged
in an operator-friendly halfround shape
• Additional heater with engine preheating
• Weight-optimized and low maintenance axles of high-tensile
steel, perfect track-keeping and lateral stability due to special
control linkage arrangement
• The low maintenance steering nuckles are steel and rubber
mounted, thus bearing failures are practically ruled out
• The perfected and robust axles are manufactured in large
series and are part of the trouble-free components of a
mobile crane
• The cardan shafts are maintenance-free. The 70° diagonal
toothing and 4 fixing bolts enable easy and fast fitting of the
cardan shafts
Ultramodern boom technology Powerful carrier drive
Modern and comfortable
driver’s cab
Outstanding carrier technology
for road and off-road operation
• Steel-fabricated and corrosion-resistant crane cab, powder-
coated, with internal sound and heat absorbing panelling,
modern interior design, tinted panes all-round, front knockout
window with large windscreen wiper and washer, skylight
of bullet-proof glass with large windscreen wiper and washer,
roller blinds on front window and skylight, space saving
sliding door
• Additional heater
with engine preheating
• Pneumatic operated footboard for safe access to the carrier
• Crane cab tiltable by 20° to the rear
• Crane engine: 4-cylinder Liebherr turbo-charged Diesel
engine type D934L A6 of 180 KW/245 h.p., robust and
reliable,exhaust emissions acc. to 97/68/EG stage 3 and
EPA/CARB Tier 3, electronic engine management, optimized
fuel consumption, exhaust gas system of stainless steel,
very efficient noise abatment of the dieselhydraulic crane
drive
• Slewing rim, slewing gear and the winches are self-
manufactured components specially matched for the
application on mobile cranes
• The centralized lubricating system for slewing rim, boom
bearing application, luffing rams and winch bearings is a
standard feature
Crane cab of modern design Crane drive with
field-proven components
• Maintenance-free suspension rams, free from lateral forces
and protected against damage by synthetic tubes
• Level adjustment (suspension set to “travel mode”) can be
performed automatically from any position by push-button
control
• Stable cornering ability of the crane due to cross mounting
of the hydropneumatic suspension
• Axle locking system (blocking of the suspension for travelling
with equipment) integrated into the suspension rams and
controllable from the driver’s cab
• Carrier, superstructure and telescopic boom in light-gauge
design, calculated by the F.E.M. method, thus weight-
optimized and particularly torsonally rigid
• Tensile property of the material with high safety factors
through the application of STE 960 (960 N/mm 2 ) for all
supporting members. Telescopic boom bottom shell of ultra-
high tensile steel S 1100 QL (1100 N/mm 2 )
• Weldment joints of oustanding quality are performed by
computer-aided welding machines
• The weld quality is documented by ultrasonic test
Crane- and road-preserving
Niveaumatik suspension
Weight-optimized steel structure
6.56
2.45
R = 5.6
12.5 t
12.5 t
12.5 t
12.5 t
47.5 t
12.5 t
12.5 t
12.5 t
10 t
47.5 t
3 4 12 LTM 1250-6.1 LTM 1250-6.1 LTM 1250-6.1