introduction
According to statistics, generator failures caused by incorrect maintenance in Weifang account for 43% of the annual repair volume, with particularly prominent issues such as control module moisture, oil emulsification, and severe carbon deposition. This article summarizes 5 common maintenance misconceptions and provides solutions based on the climate characteristics of Weifang (high temperature and humidity, concentrated rainy season) to help you scientifically maintain equipment.
1、 Misconception 1: "Frequent oil changes=good maintenance"
Truth: Overchanging engine oil actually exacerbates engine wear.
Incorrect operation: Some users change the oil every 50 hours (far exceeding the recommended 250-300 hours in the manual).
Consequence: Insufficient running in of engine oil is replaced in advance, resulting in decreased lubrication effect and increased risk of piston ring wear.
The correct approach:
Replace according to the original factory manual cycle. It is recommended to use CF-4 grade high-temperature resistant engine oil in Weifang summer;
Record the mileage/time after each replacement and use oil test strips to detect changes in oil quality.
2、 Misconception 2: "Tap water replaces coolant"
Truth: Weifang water has high hardness and is prone to forming scale that can clog the cooling system.
Incorrect operation: Directly add tap water or inferior coolant.
Consequence: The accumulation of scale on the cylinder block leads to a decrease in heat dissipation efficiency, and in extreme cases, it can cause deformation of the cylinder head.
The correct approach:
Use regular ethylene glycol based coolant and mix it with distilled water in proportion;
Replace every 2 years and check the freezing point before the rainy season (Weifang recommends below -25 ℃).
3、 Misconception 3: "Air filter can be used just by blowing"
Truth: High pressure air gun blowing can damage the fiber structure of the filter element, resulting in a 70% decrease in filtration efficiency.
Incorrect operation: Judging the cleanliness of the filter element with the naked eye, repeatedly blowing and using it.
Consequence: Dust entering the cylinder leads to cylinder pulling, increasing fuel consumption by 15% -20%.
The correct approach:
Clean the surface of the filter element with a soft bristled brush every 50 hours, which can be shortened to 30 hours during the sandy season in Weifang;
Replace the original parts immediately when there is damage to the filter paper or gaps in the end cover.
4、 Misconception 4: "Long term idling operation saves fuel"
Truth: Low load operation can easily lead to carbon buildup, increasing fuel consumption by 18% -22%.
Incorrect operation: Run the generator without load to save fuel.
Consequences: Fuel injector coking, exhaust pipe emitting black smoke, accelerated power attenuation.
The correct approach:
It is recommended to control the load rate between 60% and 80%;
Conduct a full load test once a month (lasting for 30 minutes) in conjunction with fuel additives to clean up carbon deposits.
5、 Misconception 5: "Neglecting battery pack maintenance"
Truth: During the rainy season in Weifang, the oxidation rate of battery poles increases by three times.
Incorrect operation: Only focus on starting voltage, ignore electrolyte density check.
Consequence: In the event of a sudden power outage, the battery will feed and the unit will be unable to start.
The correct approach:
Check the electrolyte level monthly (maintain 10-15mm above the electrode plate);
Apply Vaseline to the pole and install a moisture-proof cover for the battery box before the rainy season.
conclusion
Avoiding maintenance misconceptions, the service life of Weifang generators can be extended from 3000 hours to 4500-5000 hours. It is recommended that companies establish equipment maintenance records, record changes in key parameters, and sign up with local professional service teams for quarterly inspections.
