An alternate model for 42108 Mobile Crane:
Inspired by DAF CF trucks:
But first, what is a roll-off?
Roll-off truck at first glance looks like a hook loader or dump truck. The difference is how the whole loading/unloading of container works: the roll-off truck raises its hydraulically operated bed, the roll-off container rolls off the bed. A cable is used to slowly lower the container. After the waste container is loaded, the roll-off truck pulls the filled container onto the roll-off truck with the cable and winch system.
Comes with three manual functions, which are HoG steering, bed elevation and winch.
Model usues almost all parts from the set, which allowed to make detailed interior and exterior, with working steering wheel, openable doors, dashboard, air filter on the roof etc:
Let’s start with the container:
It almost does not have any gaps, so it can hold almost anything, starting from 1×1 plates, up to large chunks of “scrap” (here made from remaining parts):
Rear door of the container can be locked:
Underside of the container have added self-guiding rails, making loading of the container easier, if it’s not perfeclty aligned. Presented here by Rudolf:
This model can work as a regular dump truck:
Or as a roll-off system truck:
Both functions are operated by knobs located on either sides of the frame. Basically, whole middle section of the chassis is built around the XL actuator.
Here’s the video showing how it works:
Model comes with instructions, available at Sellfy and Rebrickable:
Here are few sample pages:
Few comparison shots with test model (yellow door on the container looks better, don’t you think?)
Available in European and Australian specification:
And with my MAN TGS:
More pictures can be found here:
This model could be also built (after few colour swaps) in Red: