Maintenance of Kubota Combine Harvester
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(1) Removal of debris Remove all protective covers, drive chains, cutters, shaker screens, and threshing screens, open the cleaning hole in the machine, and rinse the dirt, debris, etc. adhering to all parts with water to remove the wrap. Straw weeds at the transmission site, in the chain, and at the corners inside the machine are wiped clean with a dry cloth, idle three or four times, and then purged with compressed air to remove any debris left inside the machine. (2) Maintenance Knife to remove dirt from moving blade and fixed blade. If the blade is worn, damaged or deformed beyond the specified requirements, it must be replaced; the clearance between the moving blade and the stationary blade is 0-0.5mm, generally the blade is used by hand. Can be a ghost; oil rust. (3) Check and adjust the "lifting chain". Check the lower attachment distance of the tensioning hook (the standard value of this distance is 0.5-2.5mm). If it is too large, it means that the chain is loose. The tension spring should be adjusted. When the chain cannot be tensioned, the two chain should be removed. (4) Check the tightness of the “Left and Right Spike End Chains†Observe the long hole of the roller shaft and cover. If there is void below 33mm, it is normal. When there is no void, the chain has been loose and should be adjusted. The adjustment method is to remove the two chains (only adjusted by this method). (5) Check that the "lifting claws" and "delivery claws" are worn or deformed and should be replaced. (6) Inspection and maintenance of the threshing tube teeth to repair the bent teeth; the worn teeth can be turned over and used at 180°C. If both the impact parts are worn, they should be replaced; tighten the loose teeth. (7) Check that the cutting tooth can be turned over for wear. If the upper and lower teeth are worn, replace them. (8) Check and adjust the easy steel cable Adjust the threshing and harvesting clutch cable through the adjusting bolt so that the two handles of the threshing and harvesting clutch can freely move from the “off†position to the vertical position; adjust the parking brake cable to make the pedal free The stroke is 3-10mm; the cable is replaced when its surface is damaged, bent or adjusted. (9) Check the tightness of the requisition When reversing more than half a vehicle, lift the gap between the crawler and the bracket when the track is lifted by hand is 15-20mm; otherwise, the tensioning wheel of the crawler should be adjusted. (10) Check and adjust the wear or defect of the grass cutting knife. The clearance between the cutting knife and the feeding knife should be 4.5-7.0mm. If it is not within this range, it should be adjusted. (11) The prevention of cooling water fracturing machines and storage of batteries in the winter shall be carried out as usual. (12) Others Inspect the tightening of each part and tighten it; paint is peeled off, paint is applied after derusting, and the entire machine is oiled (can be used with a spray gun) to prevent rust.