How to adjust the tillage depth and tillage width in the process of hand-suspended combination plowing?

Prior to ploughing, the worker-peasant Type 12-K walking tractor and the mounted combination plow must be assembled into a unit and the plows must be adjusted accordingly before the field can be used for ploughing operations.
Plough depth adjustment first loosen the depth adjustment screw lock nut, then use a wrench to turn the screw, when the length of the screw is adjusted, the shallow plough; when the short, deep plowing. In addition, the operator can also use the lifting handle of the suspension plough to adjust. When lowering the plough, select either one of the deep or shallow positions for positioning. In this way, the plowing depth can also be adjusted.
If the depth of the front and rear ploughs are not the same, if the front plough is deeper than the rear plough, loosen the two fastening nuts on the front plough, lift the front plough, and then tighten the nuts. The adjustment of the plow's level must be conducted in the field, and it should be adjusted until the plowing depth is consistent with that before and after.
Tillage width adjustment can be moved horizontally due to the position of the front plough on the plough beam, while the plough beam is horizontally inclined, the total ploughing amplitude of the front plough forward is larger, and the total ploughing amplitude is smaller after the plough forward. When adjusting, it can be done according to the soil conditions, but be careful not to let the ploughing between the front and rear plows or overcultivation. When moving the front plough, just loosen the two U-shaped screws on the front plough column, move the front plough to a suitable position, and then tighten the nut. When working in a hard paddy field, in order to prevent the ploughing between the front and rear ploughs, the front plough can be shifted backwards.

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