1. The maintenance cycle of air filter of diesel generator set is once every 50 hours.
2. The battery shall be maintained every 50 hours.
3. The maintenance cycle of the belt is once every 100 hours of operation.
4. The radiator shall be maintained every 200 hours of operation.
5. The lubricating oil system shall be maintained every 200 hours.
6. The maintenance of diesel filter shall be carried out every 200 hours. Remove the diesel filter, replace it with a new filter, fill it with new diesel, and then replace it.
7. The maintenance of charging generator and starting motor shall be carried out every 600 hours.
8. The maintenance of generator set control panel shall be carried out every six months. Remove the dust inside with compressed air, tighten each connector, and handle and tighten the rusted or overheated connector.
1、 Daily inspection
During the daily inspection, it is necessary to check the external of the generator set and whether the battery has the return phenomenon of electric leakage and solution, and check and record the voltage value of the unit battery and the temperature of cylinder liner water. In addition, check whether the cylinder liner water heater, battery charger and dehumidification heater maintain normal operation.
To be checked:
1. Unit starting battery
The battery has not been maintained for a long time, the electrolyte cannot be replenished in time after water volatilization, the battery charger is not configured to start, the battery power decreases after natural discharge for a long time, or the charger used needs to be manually and regularly switched between uniform charge and floating charge. Due to negligence, the battery power cannot meet the requirements. In addition to configuring a high-quality charger to solve this problem, Necessary inspection and maintenance are necessary.
2. Water enters the diesel engine
As the water vapor in the air condenses when the temperature changes, it forms water droplets and hangs on the inner wall of the oil tank and flows into the diesel, resulting in the water content of the diesel exceeding the standard. When such diesel enters the engine high-pressure oil pump, it will rust the plunger of the precision coupling and seriously damage the unit. Regular maintenance can be effectively avoided.
3. Lubrication system, seals
Due to the chemical characteristics of the lubricating oil and the iron filings produced after mechanical wear, these not only reduce its lubrication effect, but also accelerate the damage of parts. At the same time, because the lubricating oil has a certain corrosion effect on the rubber sealing ring, in addition, the oil seal itself is aging at any time, which reduces its sealing effect.
4. Fuel and gas distribution system
The output of engine power is mainly the work done by the fuel burning in the cylinder, and the fuel is sprayed through the fuel injection nozzle, which makes the carbon deposit after combustion deposited in the fuel injection nozzle. With the increase of deposition, the fuel injection quantity of the fuel injection nozzle will be affected to a certain extent, resulting in inaccurate ignition advance angle time of the fuel injection nozzle, uneven fuel injection quantity of each cylinder of the engine and unstable working state, Therefore, the fuel system shall be cleaned regularly, the filter components shall be replaced, the fuel supply shall be unblocked, and the valve distribution system shall be adjusted to make the ignition uniform.
5. Control part of the unit
The control part of the unit is also an important part of the unit maintenance. The unit is used too long, the line connector is loose, and whether the AVR module works normally.
2、 Monthly inspection
During the monthly inspection, it is necessary to switch the generator set to the mains power, and conduct in-depth inspection for the generator set startup and load test.
3、 Quarterly inspection
During the quarterly inspection, the generator set needs to be at more than 70% load before it can operate for 1 hour to burn out the mixture of diesel and engine oil in the cylinder.
4、 Annual inspection
Annual inspection is an important part of the maintenance cycle of standby diesel generator set. It not only needs quarterly and monthly inspection, but also needs to carry out more maintenance items.
The service life and power of diesel generator set are not only the seasonal maintenance, but also the daily maintenance of diesel generator set. Only by starting with details can we make better use of diesel generator sets.
Contents to be replaced during maintenance:
1. Oil
The engine oil acts as mechanical lubrication, and the engine oil also has a certain retention period. If it is stored for a long time, the physical and chemical properties of the engine oil will change, resulting in the deterioration of the lubrication condition of the unit during operation, which is easy to cause damage to the unit parts. Therefore, it needs to be replaced once a year.
2. Filter
Filter refers to diesel filter, engine filter, air filter and water filter. It is used to filter diesel, oil or water to prevent impurities from entering the engine. Oil and impurities in diesel are also inevitable. Therefore, during the operation of the unit, the filter plays an important role, but at the same time, these oil or impurities are deposited on the filter screen wall, which reduces the filtering capacity of the filter, If there is too much deposition, the oil circuit will not be unblocked, so the oil engine will be shocked due to the lack of oil supply (such as hypoxia). Therefore, during the use of normal generator units, we recommend that the three filters of common units be replaced every 500 hours; The three filters of the standby unit shall be replaced every year.
3. Antifreeze
Antifreeze is an indispensable heat dissipation medium for the normal operation of diesel generator set. First, antifreeze the water tank of the unit, which will not freeze, expand and burst in winter; The second is to cool the engine. When the engine is running, the effect of using antifreeze as circulating cooling liquid is obvious. The antifreeze that has not been used for a long time is easy to oxidize in contact with the air and affect the antifreeze performance, so it needs to be replaced once a year.