1 (also labelled "L"): Restricts the transmission to 1st equipment only, also called a "very low gear". This is beneficial when a large torque is necessary on the wheels (such as, when accelerating up a steep incline); nonetheless use at bigger speeds can run the motor at an extreme velocity, https://gearbox-auto75285.blogrelation.com/40382796/the-basic-principles-of-gearbox-auto