The RS02, brand name Brockenhexe (English: BrockenWitch), is a tractor made by VEBSchlepperwerk Nordhausen alongside the larger tractor RS01. In total, 1935 units of the Brockenhexe were produced from 1949 to 1952. It was available with and without a cab.
Technical description
RS02 with mowing barRS02 with cabWell visible engineFront of an RS02, well visible front axle
The Brockenhexe utilises a frameless block construction, a dead front beam axle and a rear live axle. Due to the lack of a small DDR-made diesel engine, the Deutz licensed F2M 414 engine was used. The straight two-cylinder, four-stroke diesel engine with water-cooling and prechamer injection, produces 16,2 kW at 1500 min−1; the displacement is 2200 cm3. The engine has a decompression system and a hand crank for starting. The torque is transmitted to the gearbox with a clutch of the type Renak 16K. The gearbox was also built under licence. It is a ZF Friedrichshafen four-speed gearbox with a reverse gear. For braking, drum brakes are used, whereas the hand brake is a gearbox brake. For power take-off, the tractor has a belt-pulley and an engine speed dependent PTO. Some Brockenhexe units were equipped with a cab, some tractors also have a mower bar.
Technical data
Brockenhexe RS02/22
Engine
Name
Deutz F2M 414
Type
Straight two-cylinder, four stroke diesel engine
Cooling system
water-cooling
Injection system
Precombustion chamber injection
Injection pressure
98 bar
Bore × Stroke
100 × 140 mm
Displacement
2200 cm3
Compression ratio
22:1
Rated power
22 PS (16.2 kW) at 1500 min−1
Fuel consumption
299 g/kWh
Powertrain
Torque is transmitted to
Rear tyres
Standard tyres
front: 5,5 - 16 rear: 9 - 24
Clutch
Single disc dry clutch Renak 16K
Gearbox
Four-speed gearbox ZF F12 or ZF A12
Speed in 1st gear
4.68 km/h
Speed in 2nd gear
6.4 km/h
Speed in 3rd gear
10 km/h
Speed in 4th gear
16.85 km/h
Speed in reverse gear
3,8 km/h
Drawbar pull in 1st gear
980 kp (9.61 kN)
Drawbar pull in 2nd gear
700 kp (6.86 kN)
Drawbar pull in 3rd gear
440 kp (4.31 kN)
Drawbar pull in 4th gear
240 kp (2.35 kN)
Dimensions and weight
Length
2980 mm
Width
1560 mm
Height
2160 mm
Weight
1775 kg
Max. weight on the front axle
700 kg
Max. weight on the rear axle
1700 kg
Max. weight
2400 kg
Wheelbase
1750 mm
Turning radius
3650 mm
Track width
1270 mm
Ground clearance
310 mm
Auxiliary drives
PTO
clutch independent, 540 min−1, max. power 11.03 kW
belty-pulley
Diameter: 250 mm, Speed: 1340 min−1
Generator
6V, 80 W
Bibliography
Achim Bischof: Traktoren in der DDR - Podszun-Verlag, 2004, ISBN978-3861333487.
