When the supply of modern R215-7 excavator heavy duty engine automatically turn off.

When the supply of modern R215-7 excavator heavy duty automatic engine flameout Troubleshooting: 139 9639 -------- ------- 3931, shortly before flying Master Meng excavator engine maintenance master rushed Beibei maintenance of the case, excavator engine failure [Symptom]: excavator, walking excavator were normal engine operation, when the heavy duty engine can automatically turn off to work does not work [maintenance through]: Liu boss quickly contact a garage, and after detecting determined as excavator engine needs overhauling, takes seven days. Modern excavators boss Liu Beibei a site all actions are normal, but when the heavy duty engine automatically turn off. Liu boss immediately called the detecting of a local repair shop mechanics, carefully view after the determination is "do not come into the pipeline oil Well, how can the name of the car it! You see pump have leaked. need to replace the pump," Liu So let site owners who purchase fuel pump material back loaded. Surprisingly for less than half an hour after the emergence of self-extinguishing and difficult with the car. The site only two this Kobelco excavator is one of the larger one, if not run properly five truck suspension bridge, the duration will be greatly delayed. After this time the site project manager heard the case, urged Liu boss quickly to solve this problem. Can not be resolved locally, it can only "; far away"; the Liu boss rushed to a nearby cafe. Search "; professional excavator maintenance";, several comparative chose to call "; fly"; After receiving the boss Liu repair the phone, asked in detail about the process of assigning fault has over ten years experience in the maintenance of Master Liu rushed. rushed to Chengdu, Liu master to the site after the first excavator operator to a detailed understanding of the recent machine situation. Liu master looked at each fuel line, and still start checking the oil pump, and then they look at the other diesel continuous tube Road and relevant parts of the filter, through the car wash installation commissioning less than five minutes the engine stalled, everyone's eyes are on the master, then the maintenance of the master deep smoking a cigarette thoughtfully did not say a word, oil circuit again comprehensive view, the last will be targeted in the diesel tank, his entire diesel tank of diesel fuel all put out into the barrel of diesel. Then stood watching people loudly asked: "Master, you have put out a diesel why this expensive diesel fuel." Master Liu did not answer the next unloaded at the inlet strainer on the tank, remove a disc full of sediment inside like something to see after two cleaning before it is made with a thin copper wire mesh. . Due to the use of time is too long tank never cleaned, so there's corrosion all adsorbed on the filter, causing the oil does not flow. When the excavator engine low load or no load, the engine speed is generally normal in 850r / min, then it requires less oil flow to meet the needs of oil engine power, so whatever test engine can work properly. When the throttle heavy-duty work, due to engine speed increased from 850r / min suddenly elevated 1500r / min or so until, at a time when the fuel pump speed is also increased corresponding multiples higher speed or requires a lot of fuel flow When, at this time, but the entire supply line clogging, for diesel flow tubing smaller or no oil supply diesel pump, causing the engine combustion chamber does not have enough fuel ratio, at which point the work is heavy state, Only excavator engine flameout. After two hours before and after the installation of all the clean, view test, everything is working properly, the engine power output strong. Before he left, when modern R215-7 excavator heavy duty engine automatically turn off. The preferred fly excavator plant maintenance more professional.