Liebherr LTM1400, Van Seumeren
Scale 1:15
Built by Ron Jansen, Netherlands

Of LEGO Technic I built a model of the Liebherr LTM1400 of Van Seumeren. 
The model is built as functional as possible.
For the hoist mechanism I used three LEGO-motors of 9V, for the swinging 
mechanism I used three 12V motors. Due to the weight of the superstructure 
(the weight of the whole machine is 17 kg!!) some gears of the turntable 
broke for several times. Some times later I made a new turntable.
The truck chassis is 1.35 metres in length. From the eight axles are six 
steered. In the truck chassis houses a V12 diesel engine with moving 
pistons. The doors can open and I made three flashing lights.
The telescopic boom has a maximum length of 3.3 metres, but I have to do 
it by hand. The boom cylinders are made of aluminium, the ballast is made 
of lead. The rest of this model is LEGOs.

This crane needs a ballast truck to haul the ballast, pad jackets etc. 
I've chosen for a six axle Nooteboom ballast trailer with a five axle 
Black Cat truck. The truck has a heavy loading crane with pneumatics. The 
four last axles of the trailer are steered.

I needed about 320 hours to built both models.