The breakdown of the seeding machine should be eliminated in time. (1) The seed metering device does not meter seeds. The main reason is that the transmission gear is not meshed, or the square hole of the metering gear of the metering shaft head is worn, adjusted, repaired or replaced. (2) Single seed metering device does not work. The reason is that the opening of the seed rack or seed metering device is blocked by sundries in a separate seed metering box, so cleaning and seeds should be used. If the connecting pin between the sowing shaft and the single sowing pulley is broken, the pin should be replaced. The individual seed box plates will not be pulled apart, but the plates should be pulled apart. (3) Seed metering device is used for seed metering, but there are no seeds in individual seed ditches. The reason is that the opener or seed delivery pipe is blocked (mainly on the opener near the ground wheel). Blockages shall be removed and corresponding measures shall be taken to prevent sundries from falling into the opener. (4) Sowing did not stop and lost control. The reason is that the separation pin of the clutch strut falls off or the separation clearance is too small. The pin should be reinstalled and locked, or the separation gap should be adjusted. (5) The sowing is intermittent and uneven. The reason is that the meshing clearance of the transmission gear is too large and the gear slips, requiring adjustment. The elasticity of the clutch spring is too weak and the gear must slip. Spring should be adjusted or replaced.