There are usually four kinds of filters for diesel engine groups: air filter, diesel filter, oil filter, and water filter, the following introduces diesel filter

Filter: The filter of the diesel generator set is a special pre-filtering equipment for diesel fuel used in internal combustion engines. It can filter out more than 90% of mechanical impurities, colloids, asphaltenes, etc. Improve engine life. Unclean diesel will cause abnormal wear and tear of the engine fuel injection system and cylinders, reduce engine power, increase fuel consumption rapidly, and greatly reduce the service life of the generator. The use of diesel filters can greatly improve the filtration accuracy and efficiency of engines using felt-type diesel filters, prolong the life of imported high-quality diesel filters several times, and have obvious fuel-saving effects. How to install the diesel filter: The diesel filter is ly easy to install, just connect it to the oil supply line in series according to the reserved oil inlet and outlet ports. Pay attention to the connection in the direction shown by the arrow, and the direction of the oil inlet and outlet cannot be reversed. When using and replacing the filter element for the time, the diesel filter should be filled with diesel oil, and attention should be paid to the exhaust. The exhaust valve is on the end cover of the barrel.

How to replace the filter element: Under normal use, if the differential pressure alarm of the pre-filter device alarms or the accumulative use exceeds 300 hours, the filter element should be replaced.

How to replace the filter element:
1. Replacing the filter element of the single-barrel pre-filtering device: a. Close the ball valve of the oil inlet and open the upper end cover. (The upper-end cover of the aluminum alloy type needs to be gently pryed from the side gap with a flat-blade screwdriver); b. Unscrew the plug wire of the sewage outlet to drain the sewage oil; c. Loosen the fastening nut on the upper end of the filter element, and the operator wears an oil-proof Hold the filter element tightly with gloves, and remove the old filter element vertically upwards; d. Replace the new filter element, pad the upper sealing ring (with its own sealing gasket at the lower end), and tighten the nut; f. Pay attention to pad the sealing ring), and fasten the bolts.

2. Replacement of the filter element of the double-barrel parallel pre-filtering device: a. First close the oil inlet valve of the filter on one side of the filter element that needs to be replaced, close the oil outlet valve after a few minutes, then unscrew the end cover bolts and open the end cover; b. Open the sewage valve to completely drain the dirty oil and prevent the dirty oil from entering the clean oil chamber when the filter element is replaced; c. Loosen the fastening nut on the upper end of the filter element, the operator wears oil-proof gloves to hold the filter element tightly, and remove the old filter element vertically upward; c. Replace the new filter element, pad the upper sealing ring (the lower end has its own sealing gasket), and tighten the nut; d. Close the drain valve, cover the upper-end cover (pay attention to pad the sealing ring), and fasten the bolts. E. Open the oil inlet valve , then open the exhaust valve, close the exhaust valve immediately when the oil comes out of the exhaust valve, and then open the oil outlet valve; then operate the filter on the other side in the same way.