Dongfanghong—1002 tractors are often used for the operation of farmland with stubble. Often due to the effect of fans, field straws, hybrid apples, and residual membranes are adsorbed on the radiator, affecting the heat dissipation effect and making the engine temperature too high to work properly. It even caused an accident. With mosquito screens and frames fixed around the tractor cover, and regularly remove the above adsorbent, you can ensure the normal operation of the engine.
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When carrying out agricultural machinery repairs, oily hands cannot be avoided and it is difficult to clean. Prepare some clean sawdust in advance, wash hands before sawing in the sawdust for a few times, and then use a little detergent to add water to clean the handle.
When PY-3.4 type disc harrow is connected to a roller compactor and a leveling board to perform a complex type of site preparation operation, bauxite and dragging occur sometimes, resulting in uneven surface after operation. In addition to the improper adjustment of the disk harrow and the flat soil, this situation is often caused by the fact that the soil in the field is too wet. At this time, the operation should be stopped in time, and the soil should be dried after the operation.
When a saw-toothed gin was used at work, it was found that the cotton seeds it rolled were too shiny and even damaged the seed coat of the cottonseed and could no longer be used as a seed. After careful investigation, it was found that the inclination of the extension plate was too small, and its inclination was gradually increased, and the failure was eliminated.
When the saw-tooth gin is in operation, if there are more and more linters and neps in the lint, the serrated state cannot be ignored. As a result of wear, the serrated tip will gradually appear as a ridge. At this point, the tip of the tooth should be sharpened to a thickness of 0.5-0.6 mm, and then slightly polished with a grinder to smooth the serration.
When the hydraulic drive system of a ginning workshop is in operation, the pressure fluctuations are large. The interface seals of the pipelines are inspected several times and no abnormalities are found. Then check the suction pipe and find that the suction pipe is inserted into the oil surface too shallow, causing air to inhale.
A cotton picker found that the engine fan belt had a broken edge during the test run. After inspection by the technicians, it was found that there was a small burr left in the fan belt pulley groove when machining the belt pulley. After grinding and replacing the fan belt with a thin steel file, everything returned to normal. This case has not been seen on a normal engine because of a fault caused by a small burr. It may be due to the high speed of the engine of the cotton picker, and the small burrs can also produce large damage at high speeds.