Hydraulic Control

Hydraulic Control

The hydraulic switching device performs the following tasks:
- Controls the system and reducing pressure
- Supplies oil to the actuators, clutches, actuating cylinders, cooling system and lubrication system
- Activates the clutches and actuating cylinders
- Provides emergency hold functions during mechanical transmission emergency operation
- Controls the parking lock hydraulically







The hydraulic system is installed in the oil pan area in the transmission.
















Oil cooler

The oil cooler (1) is fitted on the outside of the transmission. It cools the clutch fluid and hydraulic oil, which is heated up significantly more than gear-wheel oil as a result of operating the clutch (frictional heat).







The top pipeline (2) is the cooler supply line, while the bottom pipeline (3) is the cooler return line.







The gear-wheel oil is cooled sufficiently by the transmission housing.