The maintenance items of spark machine are as follows: 1. Daily maintenance The fuselage is kept clean and tidy every day, and the machine runs normally. 2. Filter maintenance period: six months. Methods: According to the workload of the machine tool and the cleanliness of the electro-hydraulic oil, check whether the fuel injection amount can reach 40mm high on the surface of the workbench within 40 seconds, otherwise replace the filter and overhaul the oil circuit. 3. Maintenance period of power box: three months. Methods: Clean the air filter and check whether the ventilator is normal and intact. 4. Spark oil maintenance period: three months. Methods: Add it according to the liquid level in the oil storage tank. 5. Maintenance period of lubricating oil: three months. Methods: Oil all nozzles and oil cups of the whole machine, and pay attention to whether there is abnormal noise when the machine is running. 6. Fuel tank cleaning and maintenance cycle: 1 year. Methods: Drain all the electric hydraulic oil and clean the deposits. Note: Pay attention to whether the oil pump leaks oil or has abnormal sound. Pay attention to check whether there is oil leakage and abnormal sound in the oil pump when patrolling the aircraft at ordinary times.