某型叉车启动后点火开关由Start位置回到ON位置时,启动机又开始转动,由此导致发动机带动启动机旋转,最终造成启动机损坏。这台叉车的启动电路包括点火开关、启动继电器和控制器3个部分,如图1所示。正常情况下,只有将点火开关旋到Start位置时,启动继电器才得电控制启动机工作。 When a type of forklift starts and the ignition switch is turned back to the ON position from the start position, the starter starts to rotate again. As a result, the engine drives the starter to rotate, eventually causing the starter to be damaged. The starting circuit of this forklift includes ignition switch, start relay and controller 3 parts, as shown in Figure 1. Under normal circumstances, only the ignition switch to the Start position, the start of the electrical control of the starter before they have to work.