1 (also labelled "L"): Restricts the transmission to 1st equipment only, generally known as a "reduced gear". This is useful when a significant torque is necessary on the wheels (such as, when accelerating up a steep incline); however use at increased speeds can operate the motor at an excessive velocity, https://gearbox-auto07395.bloggactivo.com/33417122/not-known-facts-about-gearbox-auto