机车制动机操纵手柄的操作主要有旋转和推拉方式。旋转式手柄基本规定为逆时针旋转为制动操作;推拉式手柄的规定则有所不同:UIC(国际铁路联盟)规定手柄拉近操作者为制动操作,AAR(北美铁道协会)的规定正好相反,即手柄推离操作者为制动操作。由于机车的设计一般是司机面向列车的 Locomotive brake lever handle the operation of the main rotation and push and pull. Rotary handles are basically prescribed for anticlockwise rotation as a braking operation; push-pull handles are different: UIC (International Union of Union Rail) requires the handle to be closer to the operator for braking operation and AAR (North American Railway Association) Instead, the handle is pushed away from the operator for a braking operation. As the locomotive design is generally the driver for the train