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一台ZL30B装载机的发动机经过维修重新装回车架后，在启动试车时发现：t①发动机启动时，两根低压油管（一根是连接油箱的进油管，一根是柴油滤清器至高压油泵的油管，两根油管外面均是钢丝网皮）碰在一起的部位发生“打火”现象；t②发电机与调节器连接的搭铁线发热“冒烟”（
After the engine of a ZL30B loader has been repaired to reload the frame, when starting the test, it is found that when the engine is started, two low pressure pipes (one is a fuel inlet pipe connected to the fuel tank and the other one is a diesel fuel filter High pressure pump tubing, two tubing are outside the steel mesh skin) touch the site of “ignition” phenomenon; t ② generator and adjuster connected to the hot wire “smoke” (