Liebherr LTM 1120-4.1 Mobile Crane Operating Instructions Manual

Description

Liebherr LTM 1120-4.1 Mobile Crane Operating Instructions Manual

This is the full English-language operating instructions manual for the Liebherr LTM 1120-4.1 mobile crane with telescopic boom, published by Liebherr-Werk Ehingen GmbH under BAL number 28400-05-02. It is the same document set that accompanies the crane in service, and it covers the entire machine from ground level up: 5-axle crane chassis, hydraulically extendable 4-point support, crane superstructure, telescopic boom, LICCON control system, safety equipment, and every supported attachment. The Liebherr LTM 1120-4.1 Mobile Crane Operating Instructions Manual runs to approximately 2013 pages and opens with a full hyperlinked table of contents, so a crane operator or workshop technician can move quickly to any chapter, sub-section, specification table, or safety note they need.

File Details

• Manual type: Original operating instructions
• Brand: Liebherr
• Model: LTM 1120-4.1 (crane reference LTM 1120-4-1-000)
• Publication number: BAL No. 28400-05-02
• LWE reference: LTM 1120-4-1-000 / 28400-05-02 / en
• Manufacturer: Liebherr-Werk Ehingen GmbH, D-89582 Ehingen/Donau, Germany
• Language: English
• Pages: Approx. 2013
• Format: PDF
• Copyright year shown: 2021

Chapters Covered

• 1 – Description of crane (terminology, crane chassis, crane superstructure, boom, product description, technical data)
• 2 – Safety (traffic regulations, break-in instructions, job planning, technical safety instructions, ladders, signs on the crane, fall protection equipment, accesses to the crane, working in low temperatures, crane on floating body)
• 3 – Operation of crane chassis (operating and monitoring instruments, before starting to travel, axle suspension system, travel operation, crane at the job site, towing the crane, trailer coupling, underride protection, crane and crane component transport)
• 4 – Operation of crane superstructure (operating instruments, touch display menus, LICCON computer system, start up and shut down, safety equipment, crane operation, rope reeving, counterweight, working with a load, driving from the crane cab, freestanding operation, two hook operation, procedure for shut-off of crane movement)
• 5 – Equipment (folding jib, hose drum, winch 2, boom nose, special folding jib, telescopic boom disassembly / assembly, sliding beam disassembly / assembly, hook blocks, telescopic boom extension, Bluetooth Terminal (BTT), camera, wind speed sensor, floodlight)
• 6 – Auxiliary equipment (driver’s cab heater, crane operator’s cab heater, emergency control of support, emergency control, variable support)
• 7 – Maintenance and service (general, service system, maintenance and inspection schedule, crane operator maintenance tasks, maintenance personnel maintenance activities, fill quantities, lubrication chart, operating fluids and lubricants)
• 8 – Inspections of cranes (periodic crane inspections, inspection plan, inspecting winches, crane wire ropes, load hooks, hydraulic hose lines, brake system, ladders, country-specific content, weighing procedure, inspection chart for cranes)
• 90 – Appendix (preface to the appendix, update confirmation)

What the Operating Instructions Cover in Practice

The Liebherr LTM 1120-4.1 Mobile Crane Operating Instructions Manual does more than list controls. It is built as a working reference for safe day-to-day operation and long-term ownership. Sections 2.04 and 2.04.10 alone contain the full technical safety framework: crane danger zones, work near overhead power lines with nominal-voltage safety-distance tables, hand signal conventions, ladders, fall protection equipment, emergency exits, and cold-weather operating limits. Section 3 handles the entire road and job-site side – travel conditions and permitted axle loads, hydro-pneumatic axle suspension, level control, support procedures with sliding beam extension and support cylinder operation, trailer coupling, underride protection, and transport rigging plans.

The superstructure section (4) walks through the LICCON computer system from set up program to crane operation screen, including overload protection quick tests, working range limitation, telescoping under load, hoist limit switch behaviour, and the procedure for resuming crane movement after a shut-off. Rope reeving plans, hook block handling, and counterweight ballasting procedures are also part of the same chapter, as is driving the crane from the crane cab.

Equipment chapters (5) cover the folding jib, special folding jib, telescopic boom extension, boom nose, hose drum, winch 2, and the Bluetooth Terminal (BTT) with its full menu map. Section 6 covers the driver’s cab heater and air conditioning circuits, plus emergency support control, the full emergency crane control through the master switches, and variable support charts. Maintenance and inspection (7 and 8) provide scheduled tasks for the crane operator and maintenance personnel, fill quantities, lubrication chart, operating fluid table with Liebherr part numbers and ambient-temperature ranges, wire rope removal criteria to DIN ISO 4309, load hook inspection values, brake pad and brake disc wear limits, and the annual inspection chart.

Why This Manual Matters in the Workshop

Mobile crane work does not leave room for guesswork. The Liebherr LTM 1120-4.1 carries counterweight up to 31.0 t, a telescopic boom that reaches 66 m, and a LICCON overload protection system that depends on the set up configuration being entered correctly. Getting it wrong is not a paperwork issue – it is a load capacity issue. This manual supplies the figures, the sequences, and the warning conditions that keep the crane inside its load chart: support base dimensions, boom extension conditions, permitted slewing speeds, hook block reevings, wind speed limits, minimum hook block weights, and minimum rope coils on the winch. When a fault appears, the error message and shut-off sections of 4.20 and 5.31 give a step-by-step route back to safe operation.

Get the Liebherr LTM 1120-4.1 Mobile Crane Operating Instructions Manual as a PDF

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With the Liebherr LTM 1120-4.1 Mobile Crane Operating Instructions Manual on hand, a technician can carry out load chart lookups, LICCON configuration changes, counterweight ballasting, telescoping and luffing moves, rope reeving, folding jib assembly, emergency support and crane control procedures, scheduled maintenance, and the annual inspection regime without hunting for paper. The procedures matter because they are the manufacturer’s own instructions for this exact crane – correct torque, correct pressure, correct sequence, correct safety distance. Delivery is instant: pay once and the PDF is available immediately for download, with no shipping and no waiting. Read it on a laptop, tablet or phone at the job site, print the pages you need for the workshop, and keep the rest as a searchable reference on file.