Air Cooled Diesel Engine From low speed
Air-cooled diesel engine should pay attention to those matters?
1, the use of the product specifications should be described in accordance with the maintenance methods and the provisions of the adjustment, maintenance.
2, not allowed to start immediately after the high-speed full load work, must be from the low-speed no-load transition to high-speed full load.
3, air-cooled diesel engine fuel must be clean, should be standing for more than 72 hours precipitation.
4, with radiator-type air-cooled diesel engine should maintain a normal water temperature (75 ℃ ~ 95 ℃). Release the cooling water must first open the radiator cover (to be reduced after the water temperature and then open, so as not to burn), and then unscrew the cylinder block on the water switch.
5, is for the oil pressure should be 0.2 ~ 0.4MPa.
6, must strictly control the load, do not allow overload, otherwise it will affect the reliability of air-cooled diesel engine and life.
7, the new or replace the injector should be in the low-speed running, the running time should not be less than 30 minutes. Before installation must be even with clean kerosene or light diesel oil cleaning, anti-rust oil.
8, in the course of running, such as the discovery of abnormal phenomena, to timely parking. Air-cooled diesel engine after the turn off the cooling of the water to stop the water, the cooling capacity of a sharp reduction in the loss of cooling parts, easy to cause cylinder head, cylinder liner, cylinder block and other parts overheating, resulting in cracks, or excessive expansion of the piston stuck in the cylinder Inside. Air-cooled diesel engine idling, the oil pressure is low, the piston top of the fuel injection cooling effect is poor, resulting in a sharp increase in wear and tear, easy to pull the cylinder; can also cause poor atomization, combustion is not complete, coking severe, and sometimes even lead to valve and piston ring Stuck, cylinder liner. Therefore, the air-cooled diesel engine temperature is too high should first remove the load, a slight increase in speed, until the water temperature drops after the air-cooled diesel engine flame, the water radiator cover loose, remove the water vapor. High-speed operation of the air-cooled diesel engine if the sudden operation, its huge inertia will make the crank link and valve parts of the body damage, shorten the service life. To this end, some air-cooled diesel engine using imitation clearly defined, air-cooled diesel engine idle time should not exceed 15 ~ 20min. 1, the reasons for chimneys
1) The spark formed by the burning of the oil mist
This spark is not easy to find during the day, in the dark days can see small and short light pink spark from the chimney emerge.
Occurs in the air-cooled diesel engine overload, part of the cylinder fuel atomization or poor cylinder air supply, etc., so that the fuel injected into the cylinder can not be completely burned, the cylinder of excessive oil mist or fine oil is high temperature exhaust Direct out of the chimney when the oxygen and burning.
2) the burning of the residual oil formed by the spark
This spark shape is slightly longer than the above, the color is also deep, by the chimney into the sky and drift away after the wind.
Often in the air-cooled diesel engine part of the injector drip or low load operation in the case of poor combustion, especially when the exhaust system temperature, pressure is low, the unburned oil is often accumulated in the flue, even if Was brought out of the chimney, it is difficult to be ignited by low temperature gas.