Liebherr LRT 1100-2.1 Rough Terrain Crane Technical Information and BMK Components Manual (Carrier + Superstructure) (SN 044843)

The Liebherr LRT 1100-2.1 Rough Terrain Crane spends its life in ugly ground conditions where you need to know exactly what’s mounted where, fast. When something trips a fault or a relay doesn’t pull in, the first person who reaches for the BMK / component identification manual is usually the tech with a multimeter in their hand. In the workshop, clear component ID is what stops you wasting half an hour just finding “K15” or “E34” on the actual machine. That’s exactly the kind of problem this Technical Information & BMK Components Manual for SN 044843 is built to solve.

What this manual helps you do

• Identify which physical box, valve, sensor, or relay corresponds to a schematic reference like E1, V12, K3, or X45 on the LRT 1100-2.1.
• Locate components on the carrier and superstructure using outline views and layout diagrams instead of guessing and pulling panels at random.
• Trace wiring or hydraulic references from Liebherr diagrams to their real-world mounting points on the crane.
• Cross-reference Liebherr component IDs with other documentation so fault codes and schematic symbols point you to an actual part on the machine.
• Pinpoint major assemblies on the carrier (chassis, outriggers, drive area) and superstructure (boom, winches, cab, slewing gear) for technician training.

Who this is for

This manual suits workshop technicians, field service techs, electrical diagnostic engineers, fleet mechanics, and training instructors who already have schematics or service info and now need to find the hardware. If you’re looking for repair steps, torque specs, fault trees, or part numbers, you’ll want the service manual and parts catalogue instead.

FAQ

Q: Are the diagrams clear and searchable in the PDF?

A: Yes, these BMK PDFs are normally clean scans or originals where you can zoom in on component callouts and text.

Q: Does it cover both carrier and superstructure on this crane?

A: Yes, this product combines the BMK / component identification for both the carrier and the superstructure into one manual.

Q: Does it work alongside other Liebherr documents?

A: Yes, the BMK is meant to be used with wiring diagrams, hydraulic schematics, and parts catalogues so reference designators lead you to the right spot on the machine.

Bottom line: If your main question is “Where is this component on the crane?” then this is the right manual. If your main question is “How do I fix it or order it?” then you need different books.

Table of Contents:

Chassis:……………………………………………………………………………….4
View from front, lighting…………………………………………………………….4
View from rear, lighting……………………………………………………………..5
Lighting support, EMERGENCY-STOP……………………………………….6
Battery, main fuse box………………………………………………………………7
I/O- modules, BTB, ECU……………………………………………………………8
Fuses, diagnostics- and emergency operation plug………………………9
Relay, distributor…………………………………………………………………….10
Diagnosis plug………………………………………………………………………. 11
► Diesel engine Cummins:……………………………………………………..12
Installation overview……………………………………………………………….12
Type plate on engine………………………………………………………………13
Overview fan side…………………………………………………………………..14
Overview injection side……………………………………………………………15
Overview exhaust side…………………………………………………………….16
Overview of exhaust side stage IV with eAGR……………………………17
Overview of exhaust side Power Band H w/o AGR……………………..17
Top view………………………………………………………………………………..18
Top view stage IV engine…………………………………………………………19
Top view Power Band H engine………………………………………………..19
Overview fly-wheel side…………………………………………………………..20
Overview fly-wheel side…………………………………………………………..21
Engine Control Module ECM……………………………………………………22
Engine control unit ECM………………………………………………………….23
Engine-CAN…………………………………………………………………………..24
Fuel scheme ( high- and low pressure)……………………………………..25
Common-Rail-System …………………………………………………………….26
Common-Rail-system Power Band H………………………………………..27
Common-Rail-system stage IV…………………………………………………28
Injectors………………………………………………………………………………..29
Injectors………………………………………………………………………………..30
Fuel prefilter…………………………………………………………………………..30
Air sensors…………………………………………………………………………….31
Air-sensors on stage IV devices……………………………………………….32
Air-sensors Power Band H engine…………………………………………….33
Speed sensors……………………………………………………………………….34
Speed sensors……………………………………………………………………….35
Cooling agent…………………………………………………………………………36
Oil circuit……………………………………………………………………………….37
Exhaust gas turbo charger……………………………………………………….38
Exhaust gas turbo charger for stage IV engines…………………………39
Exhaust gas turbo charger for Power Band H engines ……………….40
► Exhaust after treatment SCR……………………………………………….41
Copyright by
liebherr
Customer Service-Technical Documentation LWE
Originator: lwehap3 / Issue: 07.07.2021
UW-02 • BMK – Overview of components 2 from 86 LRT 1100-2.1 042600 (KD-series 1003)
LRT 1090-2.1 041200 (KD-series 1003)
Note:
All stated pressures according to state June 2021 !
Schematics Chassis Version
Electric 98023938 003
Hydraulic/
pneumatic system
98025944 005
* = Customer‘s spec.
Sensor technology on the diesel oxidation catalyst……………………..41
Sensor technology on the SCR-catalyst…………………………………….42
Mixing tube……………………………………………………………………………43
Exhaust after treatment system:……………………………………………….44
Overview……………………………………………………………………………….44
Exhaust system – module overview…………………………………………..45
Exhaust gas system – sensor technology…………………………………..46
AdBlue-pump module……………………………………………………………..47
AdBlue tank and tank gauge unit ……………………………………………..48
Dosing unit AdBlue…………………………………………………………………49
Cooling system:……………………………………………………………………50
Cooler installation…………………………………………………………………..50
Diesel fuel system:……………………………………………………………….51
Fuel prefilter and tank……………………………………………………………..51
► Shift gearbox:……………………………………………………………………..52
Dana TE14 RTE14662-1…………………………………………………………52
► Torque converter:……………………………………………………………….54
Dana CL 3300………………………………………………………………………..54
► Hydraulic:…………………………………………………………………………..55
Temperature sensor hydraulic oil, hydraulic oil tank…………………….55
Pumps – steering, support, axle suspension……………………………….56
Pumps – steering ……………………………………………………………………57
Crane hydraulic – pumps………………………………………………………….58
► Drive train:………………………………………………………………………….59
Overview……………………………………………………………………………….59
► Axle oscillation:………………………………………………………………….60
Oscillating axle……………………………………………………………………….60
Transversal differential lock……………………………………………………..61
► Steering:…………………………………………………………………………….62
Control block (change over block)…………………………………………….62
Switching emergency steering pump, deficiency monitoring, steering gear.
63
Turn sensor……………………………………………………………………………64
Steering cylinder…………………………………………………………………….65
► Brake:…………………………………………………………………………………66
Overview brake system…………………………………………………………..66
Activation………………………………………………………………………………67
Activation………………………………………………………………………………68
► Support:……………………………………………………………………………..69
Inclination sensor, support cylinder…………………………………………..69
Oil supply support…………………………………………………………………..70
Support valves – left………………………………………………………………..71
Support valves – right………………………………………………………………72
Monitoring support pressure with pressure sensor………………………75
Inductive sensor extending support…………………………………………..76
► Special equipment:……………………………………………………………..78
Ballast cylinder……………………………………………………………………….78
Eddy current brake Telma ……………………………………………………….79
Air-conditioner………………………………………………………………………..80
Cooling water preheating ………………………………………………………..81
Additional heating Airtop 2000 STC gearbox / converter ……………..82
Additional heating DBW 2016 ………………………………………………….83
► Index………………………………………………………………………………….84
► Haftungsbegrenzung / Disclaimer………………………………………..86

Overview of the components with resource identification (BMK)
Originator: lwehap3 / Issue: 07/21/2022
► Superstructure general:………………………………………………………..3
Lighting slewing platform / boom………………………………………………..3
LMB warning device (EN 13000)………………………………………………..4
Central greasing device…………………………………………………………….5
Boom direction…………………………………………………………………………6
► Crane cabin:…………………………………………………………………………7
Heating heat exchanger……………………………………………………………7
Heating – activation, temperature sensors……………………………………8
Wiper motors, washer pump, platform…………………………………………9
Interior furnishing……………………………………………………………………10
Controls cab:……………………………………………………………………….11
Liccon – monitor, pedals, ethernet……………………………………………. 11
Joystick right, key board LSB-CAB1………………………………………….12
Joystick left, support control unit LSB-AST3……………………………….13
Operation- and control unit………………………………………………………14
Switch cabinet crane cabin:………………………………………………….15
Fuses……………………………………………………………………………………15
Relay, resistor modules…………………………………………………………..16
Mounting plate – LSB-master, voltage converter…………………………17
Universal in/output module, data logger II………………………………….18
Diagnosis plug, remote diagnosis……………………………………………..19
Plug plate slewing platform / cab………………………………………………20
EMERGENCY OPERATION – XNOT – plug………………………………..21
EMERGENCY OPERATION resistors, air circulation…………………..22
► Crane hydraulic:…………………………………………………………………23
Temperature sensor and oil cooler……………………………………………24
Overview hydraulic components……………………………………………….25
Overview metering connector plate…………………………………………..26
Main control block (Bucher)……………………………………………………..27
Main control block (Bucher)……………………………………………………..28
Hoist gear 1…………………………………………………………………………..29
Hoist gear 2…………………………………………………………………………..30
Luffing…………………………………………………………………………………..31
Slewing gear – activation………………………………………………………….32
Slewing gear – brake, locking……………………………………………………33
Auxiliary consumer valves……………………………………………………….34
Cab tilting………………………………………………………………………………35
► Rope boom LRT 1090-2.1:……………………………………………………36
base section, “boom steep”……………………………………………………..36
Boom head……………………………………………………………………………37
Hydraulic……………………………………………………………………………….38► Telescopic boom LRT 1100-2.1:……………………………………………39
base section, “boom steep”……………………………………………………..39
Boom head……………………………………………………………………………40
Tele section pinning, position sensor…………………………………………41
Cylinder pinning, position sensor………………………………………………42
Hydraulic……………………………………………………………………………….43
► Ballasting……………………………………………………………………………44
► Special equipment:……………………………………………………………..45
Double swing away jib* – electric………………………………………………45
Double swing away jib* + swing away jib slewing……………………….46
Additional heating Airtop 2000ST……………………………………………..47
Camera monitoring (basic set up)……………………………………………..48
Emergency control crane hydraulic*………………………………………….49
► Index………………………………………………………………………………….

Liebherr Crane