The use of aviation piston engine involves many aspects such as starting, running, monitoring, maintenance and operation under special environment. The following is the general use of aviation piston engines:
First, the preparation before the launch
Prepare tools and equipment
Prepare necessary tools, such as wrenches, screwdrivers, and flat pliers.
Be prepared to mix the oil (usually a mixture of fuel oil and lubricating oil in a certain proportion) to ensure that the fuel is sufficient.
Check that components such as fuel tanks, plastic tubing and propellers are in good condition and properly installed.
Engine mounting and securing
Fasten the engine to the board using screws and nuts, and fasten the board securely to objects such as a workbench or heavy stool with wood screws. When fixed, the engine should be kept as close to the workbench as possible to reduce vibration.
Ensure that the installation height of the engine is appropriate, generally a little below the waistband is more appropriate.
Check engine systems
Oil supply system: Check the height of the tank oil level and the relative position of the injection pipe to ensure that the oil can flow normally.
Ignition system: Check whether the spark plug is normal and whether the electrode gap meets the requirements.
Intake system: Check whether the air filter is clean and whether the intake pipe is smooth.
Lubricating oil system: Check whether the lubricating oil level is within the normal range and whether the lubricating oil is clean.
Second, the start of the engine
Check before starting
Ensure that engine components are securely connected and not loose or worn.
Check whether the propeller is fixed firmly to avoid falling off during startup.
Starting method
Electric start: Start the engine with an electric starter and follow the manufacturer’s recommended steps.
Manual starting: If there is no electric starter, manual starting methods can be used, such as turning the propeller or using the starting rope.
Note: Avoid forcibly starting the engine in a low temperature environment, and preheat it if necessary. During the start process, pay close attention to the operation of the engine, and stop the start immediately if any abnormality is found.
Third, the operation and monitoring of the engine
Operation monitoring
During the operation of the engine, you should pay close attention to the instrument indications, such as speed, temperature, pressure, etc.
Check the running sound and vibration of the engine regularly, and stop the engine in time if any abnormality is found.
Operating specification
Avoid working for a long time at the maximum speed and rated speed to avoid overheating or increased wear of the engine.
Avoid suddenly pushing and pulling the throttle handle too fast or too fast, so as not to cause the engine to work abnormally.
When flying in the air, avoid misoperating the magneto switch, which will cause the engine to stop in the air.
Fourth, maintenance and maintenance of the engine
Regular maintenance
Clean, lubricate and inspect the engine regularly according to the manufacturer’s recommended maintenance cycle.
Replace badly worn parts, such as spark plugs, oil filters, etc.
Oil system maintenance
Check the quality of lubricating oil regularly, and replace it in time if pollution or deterioration is found.
Ensure the lubrication system is clean, regularly clean the lubricating oil filter and replace the lubricating oil.
Corrosion prevention
When parked in a humid environment, moisture-proof measures should be taken, such as the use of desiccant or sealed storage.
For long-term parked engines, regular turning operations should be carried out to prevent components from sticking.
Fifth, operation precautions in special environments
High altitude area
Because of the thin air, the power of the engine will decrease. The mixing ratio and ignition advance Angle should be adjusted according to the actual situation to ensure the normal operation of the engine.
Cold region
When starting the engine in a low temperature environment, a preheating device should be used or a low temperature starting fluid should be added.
Avoid high load operation before the engine is fully warmed up.
Windy and sandy weather
The cleaning and replacement frequency of the air filter should be strengthened to prevent sand and dust from entering the engine.
When flying in windy and sandy weather, you should pay close attention to the operation of the engine, and stop the engine for inspection in time if any abnormality is found.
Sixth, other precautions
Safe operation
During engine operation, ensure that personnel maintain a safe distance from the engine.
Avoid placing inflammable and explosive materials near the engine.
When checking or maintaining the electrical system, cut off the power supply and use insulated tools.
Emergency treatment
Be familiar with engine emergency handling process, such as air stop, fire alarm and other emergency handling methods.
Emergency drills should be conducted regularly to improve the ability to cope with emergencies.
In summary, the use of aviation piston engines involves many aspects such as preparation, start-up, operation and monitoring, maintenance and maintenance, and operation in special environments. Only by mastering these methods can we ensure the safe and efficient operation of the engine and extend its service life.
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