Probably HYDRO-TG is one of the very rare in the world to repair this type of hydraulic gearbox VARIO.
There are 2 large family of split vario gearboxes, with double body ML160 for tractors with less than 250 hp.
the triple bodies, for the low and high power ML200 and ML260, which are for 300 horsepower tractors.
have worked with direct farmer, agricultural contractor, farm mechanic and all dealers John Deere, New Holland, Fendt, Massey Ferguson, Case IH, Class, Deutz Fahr, Valtra, Steyr, Ford, valmet.
This type of hydromechanical transmissions is very complex and specific, thanks to 40 years of experience and passion in hydraulic pumps, have easily risen to the challenge.
The VARIO hydraulic continuously variable transmission was invented by the tractor brand FENDT in the 1980s, this innovative hydro-mechanical transmission was introduced by Fendt in 1996.
At low speed the transmission is 100% hydrostatic, i. e. an enormous torque and maximum speed at 100% mechanical maximum speed, which allows an excellent efficiency, the hydraulics allows an absolutely perfect progressivity and without any kinks.
this VARIO hydraulic gearbox combines the advantages of both technologies and allows infinitely variable and continuous variations in tractor speed.
The trick is the use of an epicyclic gearbox coupled to the hydraulic system, it is the very clever basis for the operation of the transmission.
Another innovation on this hydromechanical transmission is the hydraulic pump tilt from 0° to 45° for the forward drive and from 0° to 30° for the reverse drive.
the engine also has an angle of 45°, which gives the cylinder's hydraulic pistons a shape that is unlike any other, before the larger angles of 40°, which further improves the power-to-weight ratio.
for very high power, there is a double hydraulic motor
around that there is a very perforating electronics to manage all this in total automation and adapt the diesel engine speed for less fuel consumption.
there's the road and work speed and lots of other important little details.