When the silent diesel engine is cold-started, the inability to reach the diesel compression ignition temperature is an important factor affecting start-up performance. For this purpose, hot water can be added to the engine cooling system to warm up. This is an effective way to improve the start-up performance. : Continuously heat the water (let water flows out of the cylinder), and gradually increase the water temperature to perform preheating. When the temperature of the outflowing water is high, close the water release switch. In addition, use an open flame torch or other open flame to heat the oil pan to increase the oil. Flow performance to reduce the movement resistance of the machine.
Improve the sealing performance of the cylinder.
One of the differences between diesel engine and gasoline engine is the compression ignition type, so the cylinder should have high sealing performance. When the engine is cold-started in winter, there are few oils on the piston ring and cylinder wall, and the sealing effect is not good. It will appear repeatedly. The phenomenon of not being able to catch fire, sometimes due to heavy cylinder wear and severely affect the sealing performance of the cylinder, making it more difficult to start, to this, the injector can be removed, add 30-40ml of oil per cylinder to enhance the cylinder Sealing performance, increase the pressure during compression.
Exclude the air in the oil circuit.
Loosen the bleeder screw on the high-pressure pump, pump the oil by hand to drain the air in the oil circuit of the low-pressure diesel generator set. Then, the air in the high-pressure oil line is drained. The specific method is to loosen the injectors. On the tubing connection, the throttle is at the maximum fuel supply position, and the crankshaft is rotated until the oil from the fuel injector tubing connection of each cylinder is pushed out.
Of course, the selection of diesel fuel should ensure the flow performance at the lowest temperature in the area where the vehicle is driving. Otherwise, Changchun generators will have difficulties in starting due to improper use of diesel oil and affect its flow performance. In addition, sufficient capacity and good storage capacity of the battery should be ensured in winter. The performance, which also helps to improve the starting performance of the diesel engine.
The winter start of the engine, pay attention to quite a lot, usually should first insist on shaking the crankshaft to make it easier to start after the start, the above methods, should be based on the specific circumstances of a single selection, but also a number of simultaneous selection, the owner may wish to try their own friends This will definitely make it easier for diesel generators that were originally difficult to start.
Re-clean and inspect the equipment room to ensure that no inflammable and explosive materials are around the unit and ensure that the room's air flow is smooth and unobstructed.
Fully inspect and ensure that the electrical and control parts are connected correctly, reliably and without aging.
Do not short-circuit the battery output electrode.
Check the reliability of the fasteners and the throttle adjustment system, and confirm that each control mechanism is flexible, lightweight, reliable, and check the preload conditions of the water pump belt, charger belt, and fan belt.
Clean the surface of the unit and check to make sure there are no coolant, fuel, or oil leaks.
2, check the oil level.
Check to make sure that the oil level is between the highest and lowest marks as close to the upper limit as possible and not exceeded.
3, check the fuel level.
Check the amount of fuel in the fuel tank and add if necessary.
Warning, under no circumstances should non-filtered oil be injected into the diesel engine.
Check to make sure there is no air in the fuel. If there is air, loosen the bleeder screw on the diesel filter. Use a hand pump to pump the oil to the bleeder screw, and then tighten the bleeder screw.
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