A manual transmission used in a heavy-duty truck is typically connected to the truck engine through a friction clutch while its engagement and disengagement are determined by the manual movement of a clutch pedal. This is typically controlled by the truck drivers with their feet. Generally speaking, truck drivers may feel quite tired by frequently applying the clutch pedal to the situation of heavy traffic or manually holding the clutch pedal down during a long time waiting at traffic lights.
In this circumstance, a clutch booster cylinder is needed to reduce the effort required to operate the clutch. With the hydraulic assistance from the clutch booster cylinder, the disengagement of the truck’s transmission can be easily fulfilled.
