Seedlings are not seeded. The main reason is that the transmission gear is not meshed, or the square hole of the row head is worn out and should be adjusted, repaired or replaced.
Individual metering devices do not work. The reason is that the individual seeding boxes in seed shelving or metering device mouth are blocked by debris, and should be replaced with clean seeds; the connecting pin of the seeding axis and the individual seeding sheave is broken and the pins should be replaced; individual seeding boxes The card is not pulled open and the card should be pulled open.
Seedlings are planted, but there are no seeds in individual species. The reason is that the opener or seed tube is blocked (mostly occurs on the opener on the ground wheel), and the plug should be cleaned and corresponding measures taken to prevent debris from falling into the opener.
The seeds stop and lose control. The reason is that the release pin of the clutch stay is missing or the separation gap is too small, and the pin should be reattached and locked, or the separation gap should be adjusted.
When planting, the planting is uneven. The reason is that the meshing clearance of the transmission gear is too large, and the gears should slip; adjustment should be made; the spring force of the clutch spring is too weak and the gears slip, and the spring should be adjusted or replaced.