1.电路总开关导电不良的处理方法 拖拉机和农用运输车等,电路总开关经长期使用后,总开关中与钥匙接触的触点臂,由于自然靡损,因而间隙变大。在行车中插入钥匙开通电路后,往往出现时通时断,接触不良或有断路的故障现象。出现这种异常情况,可作如下方法处理。 把电路总开关拆下,拨出各线路接头。将总开关板上的铜导电片撬开,取出圆胶木垫圈,用尖嘴钳将总开关的两触点臂夹紧,使其向中心钥 1. Main circuit switch is poor Conductive treatment tractors and agricultural vehicles, the main circuit switch after long-term use, the main contact with the key contacts of the contact arm, due to natural damage, so the gap becomes larger. In the driving insert the key to open the circuit, often appear when off, poor contact or open circuit fault phenomenon. This anomaly occurs and can be handled as follows. Remove the main circuit switch, dial each line connector. Pry open the copper conductive plate on the main switch board, remove the round wood washers, clamp the two contact arms of the main switch with needle-nose pliers,