As mentioned, the model has a pneumatic system for loading/unloading the silo (5 cylinders, 24 pneumatic tubes), including a pneumatic pump driven by a Power Functions M-motor. That same M-motor drives the tilting of the cabin (2x mini Linear Actuator) or the extension of the rear outriggers (2x mini Linear Actuator) depending on the switch box selection. Manual functions are driving & steering, as well extending the rear bumper, necessary due to the overhaul of the silo.
Both rear twin-wheels have differentials that drives a 8 cylinder fake motor, a large fan in the bumper and 2 mini fans (tan gears) behind the cabin grille.
Fun part is that both seats in the cabin can be pushed down to be able to unfold the driver's sleeping bed. To be honest, I never saw a sleeping bed in such a truck, but found it nice to make :-)
Last but not least: the silo bucket can be open/closed (mini Linear Actuaror). It is really fun to have small LEGO® 1x1 plates popping around by opening the bucket.
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Building Instructions For Sale
This is a Premium MOC, and the instructions to build it are being sold by the designer (Designer-Han) for €12.50
You will receive building instructions of type PDF - Computer Images from the designer once you have organised payment with them.