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我公司生产的ZL40／50型装载机的电气系统，改进后以继电传感式操作代替原机械直感式操作，使整机的性能有较大提高。（1）电源总开关的改进如图1所示，该机采用JK406型启动开关和DK238型蓄电池继电器，取代原装载机使用的手柄式单刀总开关，克服了易碰掉外凸手柄、步骤繁琐、
The electrical system of the ZL40 / 50 loader produced by our company has been improved to use the relay-sensing operation instead of the direct mechanical operation of the original machine so as to greatly improve the performance of the whole machine. (1) The improvement of the main power switch As shown in Fig. 1, the machine adopts JK406 type start switch and DK238 type battery relay to replace the handle-type single-pole master switch used by the original carrier, which overcomes the problem of easily touching the protruding handle and the tedious steps ,