1. Check the shell of Manual Corn Seeder, part of the shell is soaked in water, often mud or discoloration, and then repair it according to the humidity.
　　 2. Rinse or rinse the remaining mud with water. Clean the cutting table, finger frame, chain clamp, vibrating screen, feeder, conveyor belt, pulley, distributor, conveying trough, crank and rocker mechanism and other debris, clean up stacked wheels, guide wheels, rails, cutting table, conveying Soil and pulleys in mixers, etc.
　　3. Open the Manual Corn Seeder discharging chute cover, clean the residual impurities in the discharging chute, take out the discharging chain, clean and dry, evenly soak in diesel oil, and then refill. The damaged scraper should be replaced.
　　4. Clean the sediment on the cutting table, the gap between the movable blade and the fixed blade, and the gap between the blade and the protective blade with clean water. Care should be taken not to mix hard sand and pull blades.
5. Open or remove the rear cover and side cover of the Manual Corn Seeder, check and clean the mud and weeds accumulated during transportation such as the mixer, fan, vibrating screen, crank and rocker, and check whether the holes of the vibrating screen, concave screen, and scale screen are blocked , Clean up. If the screen surface is deformed due to the collision of a hard object, it should be checked or replaced. For the damaged filter, when the damaged area is small, it can be repaired and replaced when the damaged area is large.
　　6. ​​Check whether the spiral blade of the Manual Corn Seeder header is partially deformed, damaged or dissolved together with the cutter head. When the blade is partially deformed, it will be impacted and it will return to its original shape. When striking, fill the back of the deformed part with a half-round head wooden hammer, and then strike the front part with another hammer until the blade returns to its original shape and stops. The original blade can be partially trimmed to make it consistent with the shape of the damaged panel. The blades should be welded from the beginning.
　　 7. Check the Manual Corn Seeder circuit. Underwater electrical appliances should be removed, carefully inspected, dried, instrument tested, disconnected and welded, continue to be used or replaced. Once the battery is full of water, it should be discarded.
　　 8. Remove the drive belt, dry or wipe it dry, and then reinstall it to prevent slipping after being soaked in water.
　　 9. After the Knapsack Fertilizer Machine  is repaired and installed, it should be put into trial operation. If there is any abnormality, please stop and check in time.