1. The cutter is blocked

If the cutter encounters bricks, stones, iron wire, sticks and other debris, should be removed in time; If the cutter clearance is too large or the moving and fixed blades are not matched correctly, the cutter clearance and the transmission connecting rod length should be correctly adjusted according to the specified standards; The cutting edge of the cutter is too blunt, there are broken teeth, broken and damaged edge guard, etc., should be replaced with new products in time; The grain is too wet or too many weeds in the field, the stubble is too low, and the knife edge is eating the soil, etc., the wet grain should be harvested after drying, and the field with too many weeds should not be cut by machine as far as possible, and the cutting table should be adjusted to a higher level, but the stubble should not exceed 15 cm.

2. Miss cutting

The turning radius of the unit is too small, and a triangular missing cut block is formed at the turning point. The harvesting area should be divided reasonably to minimize the number of turns. When harvesting fallen grain, due to improper adjustment of the crop wheel or improper selection of harvest direction caused by cutting leakage, the position of the crop wheel (front, back, high, low and spring slope) should be adjusted reasonably according to the specific situation of the fallen grain, and the harvest direction should adopt reverse cutting or side cutting; Cutter technical condition is not good (blunt edge, tooth breakage, notch, etc.), assembly gap does not meet the technical requirements caused by leakage, should be carefully repaired and adjusted before operation; When harvesting, the starting speed is too low to push down the crop or the rotation speed of the rotary wheel is low, the unit's forward speed is large, the cutter is pushed over the crop caused by leakage, the start should be reversed first, give a certain initial speed and then start cutting, correctly adjust the ratio of the rotary speed and the unit's forward speed, and the ratio of the cutting speed and the unit speed (generally 0.7 ~ 1 is appropriate); Due to the poor straightness of unskilled operation, the unit deflected to the land to be cut and caused by leakage, should maintain a reasonable cutting width, pay attention to the unit's linear driving.

3. Pile up grain before cutting table

The clearance between the blade of the pusher and the bottom plate of the cutting table is too large to grasp grain and push grain in time, so the clearance of the pusher should be reduced. The speed of the wheel is too low, and the ability of pushing grain is weak, so the speed of the wheel should be adjusted higher. The position of the wheel is too high, too advanced, and the grain is removed from the push function of the wheel too early after cutting, and the wheel should be lowered and moved back. When harvesting thin dwarf grain, the grain layer is too thin, it is difficult to grab by the pusher, so the cutting height should be reduced and the forward speed of the unit should be increased.

4. The cutting platform pusher is not smooth or blocked

The advance speed of the unit is too high, too many crops are cut, it is difficult to feed, and the speed should be reduced; The telescopic rod extends out improperly, and should be extended forward and above more; The clearance between the cutting table bottom and the pusher is too small, the grain is squeezed and blocked, and the clearance should be enlarged; The grain is thick, dense and high, the grain paving is large, the feed is too much and the blockage should be reduced. The position of the wheel is too far away from the pusher, and the wheel should be moved back.

5, dial wheel with grain or knocked down too much grain, the loss rate is large

The position of the wheel is too low, and the spring gear shaft is hit below the center of gravity of the grain, resulting in hanging grain, and the wheel should be adjusted higher; If the position of the wheel is too wide, the clearance between the spring teeth and the blade of the pusher of the cutting table is too small and the grain is carried, the wheel should be adjusted appropriately before the hoisting. The Angle of the spring tooth is too large, which causes the grain to be hung back, and the degree of backward tilt should be reduced. Rotary wheel speed is too high, due to the impact force is too large and the grain drop, the speed should be reduced; The position of the grain wheel is too high, and the grain drop is serious, and the grain wheel should be transferred; The position of the wheel is advanced, the grain is repeatedly hit by the wheel before harvest and the grain falls, and the wheel is shifted back appropriately.