Harvesters are typically used seasonally and often sit idle for long periods. To ensure the machine remains in good working condition and to extend its service life, proper maintenance during the downtime is essential.
When the harvester is not in use, it's important to clean it thoroughly as soon as possible. Remove all dust, straw, seed meal, and other debris. Use pressure water to wash the entire machine, but make sure to remove belts, electrical components, and any sensitive parts before cleaning. After washing, dry the machine completely. For exposed metal surfaces—such as cutting blades—apply a thin layer of waste oil and cover them with newspaper for protection. If any paint has peeled off, repaint it with the same color to prevent rust.
Store the harvester in a dry, well-ventilated area with high structural rigidity. Place wooden blocks under the frame near the tires to support it. Ensure that the four support points are level to avoid frame distortion. The height should be around 20–50 mm above the ground. Release about two-thirds of the air from the tires to prevent premature aging. Lower the header and place a sleeper underneath so that the hydraulic cylinder piston rod is fully retracted, and the hydraulic pump is unloaded. Loosen the buffer spring adjustment bolts on the header to keep it in a relaxed state.
The storage location must be away from fire hazards and should have fire extinguishers, sand, and shovels readily available to handle any emergencies.
All belts should be removed, cleaned, and dusted with talcum powder. Label each belt with its specifications and transmission details, then hang them on the wall inside the warehouse. Similarly, remove the roller chains, clean them with diesel or kerosene, and after drying, soak them in waste oil for about 30 minutes (or 48 hours if possible). Remove the oil, apply hot grease, and wrap them in kraft paper or oil-resistant film before storing them in a dry, well-ventilated area.
Remove the battery and discharge it at a 20-hour rate. Drain the electrolyte, rinse the battery with distilled water until the water is no longer acidic. Place the battery upside down on two small sticks to allow any remaining water to drain out. Tighten the filler cap and seal it with a drop of wax.
Finally, release any load applied to the safety clutch springs and other springs to prevent fatigue deformation and maintain their performance over time. Proper storage and maintenance during downtime can significantly improve the longevity and reliability of your harvester when it’s needed again.
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