1. Cutter blade damage is mainly encountered in the cutting process, such as stones, roots and other hard objects; blade protector loose or deformed, so that the level of the blade is inconsistent; blade rivets loose, cutting and other touch. In order to prevent damage to the blades, attention should be paid to the obstacles in front of the cutter during operation. When the common troubles of the combine harvester are eliminated and eliminated, ensure that the cutter is properly installed. 2. The reason why the cutter bar breaks due to the broken cutter bar is that, in addition to too much cutter movement resistance, there is an incorrect installation position of the cutter drive mechanism. In order to prevent the cutter bar from breaking, the cutter should be adjusted correctly so that the movement resistance of the cutter can be reduced, and the installation position of the cutter drive mechanism can be adjusted to meet the assembly requirements. 3. The slippage of the header auger causes the auger to slip because the clearance between the auger screw blade and the header floor is too large. In order to prevent the occurrence of this fault, the gap between the spiral blade and the header plate should be properly adjusted according to different conditions such as crop density and height. When harvesting low crops, the gap can be reduced to about 10mm; when the edge of the spiral blade is polished, a key knife can be used to make small teeth on the edge of the blade to restore and increase the pushing ability. 4. Causes of roller jams caused by roller jamming are various, such as the roller gap is too small; engine horsepower is insufficient, the belt slips, so that the drum speed is not enough; the rotational speed of the stumbling wheel and squealer device is not enough, the stalk discharge is not smooth; the crop is too Wet, too dense; too much toughness weeds, fast walking speed, etc. In order to prevent the clogging of the rollers, in the harvesting of wet grass crops, the gap between the roller and the gravure plate should be increased in an appropriate manner. When hearing the descent speed of the drum speed, the locomotive forward speed should be reduced or temporarily stopped; the tightness of the transmission belt should be adjusted; Adjust the rotation speed of the drum and the clearance of the skid bearing. 5. There are many reasons for chain fracture chain fracture, when the sprocket in the transmission circuit is not in the same rotating surface, the chain eccentric wear, drop chain; drive shaft bending, so that sprocket swing; chain continues to use after severe wear; The tightness of the chain is not suitable; the sprocket wear exceeds the allowable limit; the split pin of the sleeve roller chain is worn off or reversed in the direction of the opening of the joint clip; the hook chain wears badly or is reversed, causing the chain to be dropped, broken and removed. open. After the chain is disconnected, it will then spoil the sprocket, bend the shaft, and damage other parts. In order to prevent the occurrence of this failure, the sprocket in the same transmission circuit must be in the same plane of rotation; the wear of the chain is often inspected and repaired and replaced in time; the condition of the cotter pin of the chain joint is frequently checked and replaced if necessary; straightening The curved transmission shaft does not exceed the allowable swing amount when the sprocket rotates; the tightness of the chain is correctly adjusted; the sprocket exceeding the wear limit is repaired and replaced in time, and the safety clutch is correctly adjusted; and the drive chain is timely lubricated.
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