$ 0
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Format: PDF (Printable Document)
File Language: English
File Pages: 192
File Size: 32.77 MB (Speed Download Link)
Brand: Liebherr
Model: LTM 1250-5.1 Mobile Crane
Components: Carrier + Superstructure
Serial No: SN 088555
Date: 2023
Type of Document: Technical Information & BMK Components Manual
$ 80
The Liebherr LTM 1250-5.1 mobile crane works hard in the field lifting heavy loads with its carrier and superstructure as one system, so knowing where each component sits is half the battle in any diagnosis. The Technical Information & BMK Components Manual for SN 088555 is what techs reach for when a wiring diagram says “K15” or “X45” and they need to find it on the actual machine. In most shops, that’s the step students miss: they can read the schematic but get lost on the crane. This BMK fills that gap by tying the paper diagrams to real hardware locations.
What this manual helps you do
Who this is for
This is aimed at workshop technicians, field service techs, electrical diagnostic engineers, fleet mechanics, and training instructors who already use wiring or hydraulic diagrams. If you need repair steps, torque specs, or part numbers, you want a service manual or parts catalogue instead, not this BMK.
FAQ
Q: Is this a clear, searchable PDF with readable diagrams?
A: Yes, it’s a PDF BMK/Technical Information document with clear component layout diagrams suitable for zooming and on-screen searching.
Q: Does it cover just the upper crane or the whole machine?
A: It covers both carrier and superstructure BMK layouts together, so you see the full machine from chassis to boom.
Q: Does it tie in with other Liebherr manuals?
A: Yes, the BMK reference designators are made to match Liebherr wiring diagrams, hydraulic schematics, service information, and parts catalogues.
Bottom line: If your main question is “Where is this component on my LTM 1250-5.1, and what does Liebherr call it?”, this is the right manual. If you’re looking for how to fix it or order it, this is not the one you need.
Overview of components with identification (BMK)
Produced by: lwedoh3 / Issue: 14.09.2017
►►Chassis:………………………………………………………………………………………….. 4
Lighting front and mirrors…………………………………………………………………..4
Lighting rear…………………………………………………………………………………….5
Side marker lights right………………………………………………………………………6
Side marker lights left………………………………………………………………………..7
Sockets, warning signal sensor…………………………………………………………..8
►►Driver’s cab:…………………………………………………………………………………….. 9
Doors and windows, interior lighting……………………………………………………. 9
Screen wiper and washer…………………………………………………………………10
Heating valves………………………………………………………………………………..10
Ventilation and heat exchanger………………………………………………………… 11
Control elements…………………………………………………………………………….12
Control elements new………………………………………………………………………13
Bluetooth Basic unit – BTB, Bluetooth Terminal – BTT…………………………. 14
Control elements centre console……………………………………………………….15
Centre console – I / O- modules, BTB……………………………………………….. 16
Centre console – batteries, battery main switch, Fuses battery box……….. 17
Centre console – fuses…………………………………………………………………….18
Centre console – relay……………………………………………………………………..19
Centre console – voltage converter, heating flange – control…………………. 20
Center console – components, control units………………………………………..21
Centre console – ventilator, component carrier…………………………………….22
EMERGENCY STOP……………………………………………………………………….22
Centre console – diagnosis plug………………………………………………………..23
Telemetry FMS-interface………………………………………………………………….24
►►Pneumatic system:………………………………………………………………………….25
Air compressor and air dryer…………………………………………………………….25
Pressurised air reservoir Trailer control valve*…………………………………….26
Pneumatic valves in the driver cab……………………………………………………. 27
Brake relay- / overload protection valve…………………………………………….. 28
Filter and overflow valve in circuit IV A,
measuring points compressed air circuits………………………………………….. 29
Pressure sensor and pressure switch for axle suspension and brake system……30
Solenoid valves auxiliary consumer………………………………………………….. 31
Overview disk brake system……………………………………………………………..32
Overview brake pad monitoring…………………………………………………………33
Brake pad monitoring indicator………………………………………………………….34
ABV – control valve………………………………………………………………………….35
ABV – wheel speed sensors……………………………………………………………..36
►►Drive assembly:………………………………………………………………………………37
Complete unit Installation view………………………………………………………….37
View from right……………………………………………………………………………….38
View from left………………………………………………………………………………….39
Copyright by
liebherr
LTM 1250-5.1 088500 (KD-series 1000) UW-02 • BMK – Component overview 2 of 117
Customer Service-Technical Documentation LWE
Produced by: lwedoh3 / Issue: 14.09.2017
►►Diesel engine D946 A7 -04 (Stage IV SCR) / -03 (Powerband H)……….. 40
Engine control unit…………………………………………………………………………..40
Fuel pumps…………………………………………………………………………………….42
Fuel low pressure sensors……………………………………………………………….43
Liebherr Daisy-Chain diesel injection system………………………………………44
Injectors LCR-I S2…………………………………………………………………………..45
Overview exhaust side……………………………………………………………………46
Charge air sensors and preheating…………………………………………………… 47
Exhaust gas flap……………………………………………………………………………..48
Exhaust gas turbo charger with wastegate………………………………………… 49
Overview flywheel side and generator………………………………………………. 50
Speed sensors……………………………………………………………………………….51
Overview fan side……………………………………………………………………………52
Cooling agent…………………………………………………………………………………53
Oil circuit………………………………………………………………………………………..54
Ambient temperature diesel engine…………………………………………………… 55
Terminal resistor CAN-LIDEC (ECU-CAN2)………………………………………..56
Terminal resistor engine-CAN (ECU-CAN2)………………………………………..57
Only Powerband H engines:
External exhaust gas return eAGR……………………………………………………. 58
Intercooler temperature sensor…………………………………………………………59
►►Exhaust gas aftertreatment SCR……………………………………………………..60
Overview exhaust gas system…………………………………………………………..60
Urea tank and tank sensor……………………………………………………………….61
Pump module and AdBlue-lines………………………………………………………..62
AdBlue-injector and upstream-sensors……………………………………………… 63
Downstream sensors……………………………………………………………………….64
Ambient air sensor and exhaust gas flap…………………………………………… 65
►►Air filter unit at engine -03 (Powerband H)………………………………………..66
►►Diesel fuel device, prefilter unit and tank…………………………………………67
►►Cooling system:……………………………………………………………………………..68
Overview……………………………………………………………………………………….68
►►Automated shift gearbox ZF 12 AS 2531 SO:……………………………………69
Clutche and gearbox actuator…………………………………………………………..69
Intarder………………………………………………………………………………………….70
►►Hydraulic supply:……………………………………………………………………………71
Overview hydraulic pumps……………………………………………………………….71
Support and axle suspension……………………………………………………………72
Temperature sensor hydraulic oil, hydraulic oil tank……………………………..73
►►Drive train:…………………………………………………………………………………….. 74
Overview……………………………………………………………………………………….74
Distribution gear – Kessler VG 2700 (2-stage)…………………………………….75
Road/off-road switchover…………………………………………………………………76
Switch over travel drive / crane drive (PTO)………………………………………..77
Transversal differential lock axle 2 and 3*………………………………………….. 80
Transversal differential lock axle 4, axle 5………………………………………….. 81
Longitudinal differential lock distribution gear and axle 4,
activation* axle 3 (drive 10×8)…………………………………………………………..82
►►Steering:………………………………………………………………………………………… 83
Steering gear ZF-SERVOCOM, Deficiency monitoring……………………….. 83
Oil supply steering circuit 1, deficiency monitoring……………………………….84
Oil supply steering circuit 2………………………………………………………………85
►►Active rear axle steering:…………………………………………………………………86
Flow and pressure monitoring…………………………………………………………..86
CAN-Valves (HAWE)……………………………………………………………………….87
Control block………………………………………………………………………………….88
Measuring points…………………………………………………………………………….89
Angle sensor………………………………………………………………………………….90
Steering- and centering cylinder, safety valves……………………………………91
►►Support………………………………………………………………………………………….. 92
Inclination sensor……………………………………………………………………………92
Support valves – right………………………………………………………………………93
Support valves – left…………………………………………………………………………94
Sliding beam sliding beam……………………………………………………………….95
Support cylinder……………………………………………………………………………..97
Sliding beam monitoring…………………………………………………………………..98
►►Axle suspension:…………………………………………………………………………….99
Level sensor- axle suspension………………………………………………………….99
Control valve – blocked / sprung………………………………………………………100
Valve block – axle suspension right…………………………………………………. 101
Valve block – axle suspension left……………………………………………………102
Axle suspensions cylinder………………………………………………………………103
►►Special equipment:……………………………………………………………………….104
Eddy currant brake Telma Focal 2200*……………………………………………. 104
Variable support*…………………………………………………………………………..105
Supporting force sensor – plug connections*……………………………………..106
Vario Base with pressure sensor*……………………………………………………107
Air condition*………………………………………………………………………………..108
External power supply 24 V*, socket 110 / 230 V*……………………………..109
Back-up camera*…………………………………………………………………………..109
Additional heating Thermo PRO 90*……………………………………………….. 110
Additional heating Airtop 2000 ST*……………………………………………………111
External power supply*………………………………………………………………….. 112
Battery charger*…………………………………………………………………………… 113
Emergency control cran hydraulic* – vehicle…………………………………….. 114
►► Index……………………………………………………………………………………………. 115
