Stoll uses a simple “drive in, drive out” coupling system. Of course, we have to try it. To fit the loader, the tractor is driven into the loader arms. The coupling sections slip smoothly into the arresting hooks. Then we connect the hydraulics and electrics. Finally the locking levers are applied on either side and the parking legs folded up. Reversing this procedure uncouples the loader. There are no tools and no nuts and bolts, and the tension wedges ensure a tight and secure connection.
An impressive feature of the Stoll is the parking mechanism. The supports are self-locking and automatically adjust to the right height to provide stability when the loader is parked.
Everything that can be simplified has been simplified on this loader. In the standard version, hydraulic connection of the tractor and front loader is by means of four flat-plug couplings. Colour coding should mean there’s no confusion about what goes where. Easier still is the Hydro-Fix option. This allows all four connections to be coupled or uncoupled in one swift movement and should prove a valuable time-saving feature for those who change tools frequently. In all cases, hydraulic lines are fitted tightly to the loader arm for an optimal view to the front.
Although hydraulic parallel motion is available in the Robust F series, the model we look at features mechanical parallel motion by control rods. The rods are guided by large bearings that are easy to grease, via nipples, from the outside. The Robust F8 is offered with a single-lever controller or proportional- control lever with joystick operation for improved comfort when a good deal of loader work is anticipated.
Visibility of the operation from the cab of the Deutz Fahr Agroplus 70 tractor used in the test is excellent. The loader has flat struts and flat, oval transverse tube. The latter is positioned well in front so there should be no collisions with the front weights and the headlights are not obstructed when the loader arm is lowered. The tester enjoys using this loader. “It’s got good tipping and crowding angles and the lift height is excellent,” he says. “The Stoll and Agroplus make a good combination.”
The strength of build and quality of construction of the Stoll front-end loader also impressed us. A large range of tools, including earth buckets, manure forks and pallet forks, is available.
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