ENSURING THE CLEANLINESS OF THE DIESEL ENGINE FUEL SYSTEM CAN IMPROVE THE SERVICE LIFE OF PRECISION COMPONENTS IN THE SYSTEM, AND EVERYONE UNDERSTANDS THIS PRINCIPLE. HOWEVER, IN THE PROCESS OF USE, THE FUEL IS OFTEN NOT CLEAN ENOUGH DUE TO VARIOUS REASONS. IN ORDER TO ENABLE USERS TO BETTER USE DIESEL ENGINES, THE AUTHOR WILL DISCUSS THIS ISSUE FROM THE FOLLOWING ASPECTS.1、 DEVELOP THE HABIT OF REGULARLY CLEANING THE FUEL TANKTHE FUEL TANK IS WHERE DIESEL IS STORED, AND IF THE TANK IS NOT CLEAN, IT IS DIFFICULT TO ENSURE THE CLEANLINESS OF THE DIESEL PROVIDED.1. PAY ATTENTION TO THE FUEL FILLER FILTER IN DAILY LIFE. IF SEDIMENT PARTICLES ARE FOUND, THEY SHOULD BE CLEANED. ONCE THE FILTER IS DAMAGED, IT SHOULD BE REPLACED IMMEDIATELY; THE FUEL TANK CAP SHOULD BE SECURELY CLOSED AND REPLACED IF LOST, AND CANNOT BE TIED WITH CLOTH BLOCKS.2. THE DIESEL ENGINE NEEDS TO CLEAN THE FUEL TANK EVERY 100 HOURS OF OPERATION. THE CLEANING METHOD IS TO REMOVE THE FUEL TANK WITH A SMALL AMOUNT OF OIL LEFT, SHAKE THE TANK BACK AND FORTH, AND THEN RELEASE THE DIESEL. IF THE RELEASED DIESEL IS NOT CLEAN, IT CAN BE REPEATED SEVERAL TIMES. WHEN CLEANING THE FUEL TANK, IT IS FORBIDDEN TO USE COTTON CLOTH OR COTTON THREAD TO SCRUB, IN ORDER TO AVOID RESIDUAL FIBER SUBSTANCES BLOCKING THE OIL PASSAGE.2、 REGULARLY CLEAN THE FILTER ELEMENT OF THE DIESEL FILTERTHE DIESEL FILTER IS AN IMPORTANT COMPONENT FOR FILTERING DIESEL AND ENSURING ITS CLEANLINESS. AS THE USAGE TIME INCREASES, ITS FILTERING ABILITY WILL DECREASE, AND THE DIESEL ENGINE NEEDS TO BE MAINTAINED EVERY 100 HOURS OF OPERATION. HERE ARE SEVERAL MAINTENANCE METHODS INTRODUCED.1. BRUSH WASHING METHOD. REMOVE THE FILTER ELEMENT, BLOCK THE CENTER HOLES AT BOTH ENDS WITH SELF-MADE PLUGS, THEN GENTLY BRUSH FROM TOP TO BOTTOM WITH A BRUSH DIPPED IN OIL IN THE OIL PAN, AND FINALLY RINSE WITH CLEAN OIL.2. REVERSE BLOWING METHOD. PLACE THE FILTER ELEMENT IN THE OIL TANK, USE COMPRESSED AIR OR AN AIR PUMP TO BLOW OUT DIRT FROM THE INSIDE OF THE FILTER ELEMENT, AND FINALLY RINSE IT WITH CLEAN OIL.3. REPLACEMENT METHOD. NOWADAYS, MOST PAPER FILTER CARTRIDGES ARE DISPOSABLE AND CAN BE REPLACED REGULARLY.WHEN MAINTAINING THE FILTER, IT IS IMPORTANT TO ENSURE THAT THE RUBBER GASKETS AT BOTH ENDS OF THE FILTER ELEMENT ARE INTACT, OTHERWISE DIESEL WILL FLOW DIRECTLY THROUGH WITHOUT PASSING THROUGH THE FILTER ELEMENT.3、 CLEAN THE SYSTEM COMPONENTS THOROUGHLY DURING MAINTENANCETHE FUEL INJECTION PUMP AND INJECTOR IN THE FUEL SYSTEM ARE KEY COMPONENTS, AND THEIR CLEANLINESS MUST BE ENSURED DURING MAINTENANCE.1. FOR FUEL INJECTORS AND MULTI CYLINDER DIESEL ENGINES, THE FUEL INJECTION PUMP CAN ONLY BE OPERATED BY PROFESSIONAL PUMP ADJUSTERS, AND THE QUALITY IS GUARANTEED BY THEM.2. FOR THE UNIT FUEL INJECTION PUMP ON A SINGLE CYLINDER DIESEL ENGINE, USERS CAN ALSO INDEPENDENTLY INSPECT AND REPAIR IT THEMSELVES. BUT WHILE PAYING ATTENTION TO ASSEMBLY QUALITY, IT IS ALSO NECESSARY TO ENSURE THE CLEANLINESS OF THE SITE, PARTS CLEANING, TOOLS, AND OIL.4、 ENSURE THAT THE DIESEL FUEL ADDED TO THE FUEL TANK IS CLEANTO ENSURE THAT THE DIESEL FUEL ADDED TO THE FUEL TANK IS CLEAN, THE FOLLOWING STEPS NEED TO BE NOTED.1. TRY TO REFUEL AT REPUTABLE GAS STATIONS WITH GUARANTEED QUALITY AS MUCH AS POSSIBLE.2. BEFORE REFUELING THE FUEL TANK, PURIFY THE DIESEL AS MUCH AS POSSIBLE. THE COMMONLY USED PURIFICATION METHOD IS THE PRECIPITATION FILTRATION METHOD, WHICH FIRST USES A CERTAIN AMOUNT OF TIME TO PRECIPITATE AND REMOVE MOST OF THE WATER AND IMPURITIES WITH LARGER PARTICLES IN THE OIL, AND THEN FILTERS THE DIESEL THROUGH COARSE AND FINE FILTERS. PRACTICE HAS PROVEN THAT DIESEL TREATED WITH THIS METHOD CAN INCREASE THE SERVICE LIFE OF PRECISION COMPONENTS IN THE SYSTEM BY 2-3 TIMES.3. PAY ATTENTION TO THE CORRECT OPERATION OF REFUELING, THAT IS, THE REFUELING PIPE AND FUEL TANK PORT SHOULD BE WIPED CLEAN, AND WIND AND SAND SHOULD BE AVOIDED; WHEN REFUELING, DO NOT SHAKE THE OIL DRUM, AND THE SUCTION PIPE SHOULD NOT BE INSERTED INTO THE BOTTOM OF THE DRUM; AFTER REFUELING, IMMEDIATELY COVER THE FUEL TANK CAP.