MB Trac
WF Trac tractors are the manufacturer Werner Forst - und Industrietechnik in Trier, which were originally developed by Mercedes -Benz MB -Trac, based on Unimog aggregates.
History
Until 1991 41.365 MB Trac were sold. Today is about 30,000 such vehicles in use.
Since 1993, the vehicles are still sold as WF Trac by Werner. The Werner made earlier the special forest structures for the MB trac.
The WF trac trac technically has been strongly modified compared to the MB. It only four-cylinder engines from Mercedes- Benz have been installed from the Unimog. The technical highlight from 1993 to 2004, a 270 ° hydraulic swivel driver's seat, which allowed the driver to his seating position optimally adapt to the working conditions.
With the newer models from 2005 even the whole cab is pivoted by 270 °. The new models provide otherwise a completely new development based on the variable - power-split S -Matic transmission by ZF Passau and the Mercedes -Benz OM 904 LA engine represents the force can be transmitted mechanically or hydraulically to the wheels. The lead frame is replaced by a self-supporting tray with a central Verwindungsgelenk which allows interconnection of 15 °. For more stability during crane operation, the joint and the hydro-pneumatic suspension on the front axle can be locked.
The WF trac is used primarily as a special-purpose vehicle in the forestry and forest work.
The distribution of vehicles still occurs despite the takeover by Unimog dealer.
Models
The series includes the following models (sales designation)
Werner
Werner 's vehicles with model name on the cab. Two different basic engine types are installed:
- WF trac 900 (95 hp)
- WF trac 1100 (105 hp)
- WF trac 1300 (136 hp)
- WF trac 1500 (150 hp)
- WF trac 1700 (177 hp)
The external appearance is the first time uniform. In the light and medium series, there are only a bulge in the bonnet up. Under it is the Kühlmitteleinfüllstutzen. The bonnet of the heavy series is adapted in the light styling. The advantage of uniform appearance: Through the salaried and fine mesh radiator grille can be omitted frequently used with the predecessors of the heavy series radiator protection mat ( chopper grid).
The rise in the major types are consistent with three stages. The left ascent can be opened for maintenance of battery and brake system. On the right side is located at the rise of the new plastic tank with a capacity of 240 liters of diesel. The new engines from the OM 364 A and OM 904 LA series are characterized by more power with lower fuel consumption, rated speed of 2400 rpm and high torque. Light switchable is the revised gearbox.
The light and medium series is equipped with the " Pneumo Power " circuit. A synchronized planetary gear set with the same forward and reverse gears comes in for heavy duty used. The middle series the first time receives a transmission oil cooler. In addition to the standard power lift system is available as optional equipment for the medium and heavy series one EHR ( electronic hitch ).
In the comfort of the tractor safety cab meter is new. The instrument cluster for the first time in tractor design a digital speedometer in transmitted light technique.
Current Models
- WF trac 2040 4 × 4 (204 hp)
- WF trac 2040 6 × 6 (204 hp)
- WF trac 2460 4 × 4 ( 238 hp )
- WF trac 2460 6 × 6 ( 238 hp )
The new generation of the WF Trac received a revised and enlarged cabin. In addition, the design was revised and the WF Trac received new engines. Currently comes in weaker model, a Mercedes -Benz 4- cylinder engine with 4.8 liter displacement and 800 Nm of torque and in the stronger model of a Mercedes -Benz 6- cylinder engine with 7.2 liter displacement and 850 Nm of torque to the deployment. Both engines use a SCR catalytic converter with AdBlue technology and thus keep the exhaust stage Euromot 3B. The WF Trac have a hydro-pneumatic front axle suspension with Ackermann steering ( the 6 × 6 additionally with steered Boogie axis) and are up to 50 km / h. The new cab is rotated by 270 ° and ROPS and FOPS tested.