Furthermore, the loader now has a load stabiliser, with an automatic function for vibration damping. In automatic mode, the load stabiliser is activated when the ground speed reaches 7kph or above, and deactivated when it falls below 7kph.
Operating the loader
On the six new models the right dashboard and the joystick have been redesigned, as has the rotary switch on the dashboard which selects the three steering types: front-wheel, all-wheel and crab steering. The steering type can be switched with a press of a button. The new models achieve a steering radius of 3.75m.
The joystick, located in the right armrest of the driver's seat on the three larger models and built into the right side console in the smaller series, is used to select a total of 13 functions.
A new feature is the choice between three driving ranges: 'Snail' 0-7kph; 'Tortoise' 0-15 kph; and 'Hare' 0-40kph. If the driver limits the maximum speed, they can drive with a slightly increased engine speed making full use of the hydraulic power.
At the same time, the sensitivity of the accelerator pedal changes. On the new telehandlers, the three driving ranges can be changed while driving and under full load by pressing a button. All models are available as 20, 30 and 40kph versions.
Four operating modes are set out on the new Scorpion: bucket mode, stack mode, vertical lift and manual mode. In all operating modes, the loader's drop rate adjusts automatically to the weight and angle of the load. The higher and heavier the carried load, the lower the maximum drop rate. When the telescopic arm is fully retracted, the overload protection is always deactivated to allow bucket filling and pushing operations to be carried out at full power.
In certain situations, the driver can actively bypass the overload protection system for up to 60 seconds via a two-handed operation.
A new automatic function is the bucket return positioner. One press of a button moves the bucket or grab to a particular position which can be stored whilst carrying out the work. This means that during quick-loading processes, the equipment can be precisely aligned at any time and as often as required.
The new telehandlers are equipped with load-sensing working hydraulics with impressive performance. The Scorpion models 9055 and 7055 now have a conveying capacity of 187l/min, while the Scorpion 7044 conveys 140l/min. The three smaller models offer a choice between a 100l/min gear pump or 140l/min load- sensing hydraulics.
The increased loading capacity and hydraulic power of the new telehandler required a worthy power plant, and here Claas has opted for new-generation Deutz engines. These engines are characterised by an increased torque and meet the standard stage IIIb exhaust emission requirements.
The two largest models, the 9055 and 7055, are fitted with 4.1-litre 4-cylinder engines with an output of 156 hp. Meanwhile, the 7044 and the small series (Scorpion 7035, 7030 and 6030) are fitted with 3.6-litre 4-cylinder engines with an output of 122hp. The 4.1-litre engines contribute to emission control with a combination of a self-cleaning diesel particulate filter and maintenance-free diesel oxidation catalyst (DOC). With the 3.6-litre engine, the exhaust gas after-treatment consists only of a DOC system.
The air ducting concept for the engine is unusual. The cooling air is sucked in from the upper section of the engine bonnet. It flows through the cooler, is channelled past the engine block and exits the engine compartment at the top, in the rear section of the engine bonnet. Claas engineers claim this air ducting concept prevents dust and dirt from being stirred up and sucked in.
An important aspect of the new telehandler is the hydrostatic drive, which constantly co-ordinates speed and thrust up to a maximum speed of 40kph. On the Scorpion 9055, 7055 and 7044 models, when the top speed is reached in the all-wheel steering and front-wheel steering modes, the speed can be reduced to 1800rpm. This reduces diesel consumption during transport work. The reduced engine speed also lowers noise level during work.
The 'smart roading' function is controlled automatically. The driver sets the speed using the accelerator pedal, and the engine speed is reduced automatically once the top speed is reached. In order to achieve maximum traction during pushing operations, the limited slip differential in the front axle can be actuated by pressing a button on the joystick.
Inside the cab
All new models are equipped with a cab which has more space (5pc more volume, 9pc more interior width) and improved 360° all-round visibility due to a continuous windscreen (8.5pc more glass surface).
Creature comforts seem to be well catered for. For example, the additional refrigerated 23l-capacity storage compartment, and the optional seat with dynamic damping, should help minimise driver fatigue during long days.
The main operating modes of the machine are displayed in the right-hand A-frame member of the new models.
There are also now two large storage compartments at the rear of the machine on the low-lying ballast weights. Together, they have a capacity of 44l and are lockable. For night work, all switches in the cab are back-lit and the machines can be fitted with up to nine work lights.
The three Scorpion 9055, 7055 and 7044 large series models will be available from October. The smaller Scorpion 7035, 7030 and 6030 models, which are more likely to prove popular in Ireland, will be supplied from February 2014. Prices are yet to be set.