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1.突然熄火后无法启动(1)故障现象1台小松WA500-6型装载机在全负荷作业过程中突然出现动力不足现象,随后熄火,故障报警装置出现E03报警信号(该报警信号表示动力不足)。(2)故障排查首先,打开该装载机故障诊断系统,查出故障代码为“CA559”和“CA2249”。故障代码“CA559”表示供油泵供油压力低,故障代码“CA2249”表示供油泵供油压力极低。这说明该发动机燃油供给系统出现故障。其次,通过按压手油泵测试低压油路,发现低压油路油压非常低,而正常
1. Unable to start after a sudden flameout (1) Symptom 1 Komatsu WA500-6 loader suddenly appears power shortage phenomenon during full load operation, and then flameout, fault alarm device E03 alarm signal (the alarm signal indicates lack of power ). (2) Troubleshooting First, turn on the loader troubleshooting system to find the error codes “CA559” and “CA2249”. Fault code “CA559 ” indicates that the fuel pump supply pressure is low, fault code “CA2249 ” said the fuel pump supply pressure is very low. This indicates that the engine fuel supply system has failed. Second, by pressing the hand pump to test the low-pressure circuit, it was found that the low-pressure circuit had a very low oil pressure and the normal