In short, the maintenance of diesel engine filters should be carried out in accordance with the specified time and operation in the user manual. If the working environment is harsh, the maintenance cycle should be advanced. Disassembly, inspection, and maintenance must be strictly carried out in accordance with the regulations. It is not advisable to assume that various filters have little effect and are optional. Otherwise, the diesel engine cannot maintain its technical condition and function properly, and may even greatly reduce its working life

The present invention provides a rubber half track walking device for a combine harvester, wherein the internal shaft seat assembly cooperates with the disc seat to form a support, and the joint bearing seat assembly cooperates with the drive wheel shaft head to form a support; The driving wheel is installed above the trolley bracket through a bracket, and the guide wheel and the support wheel are installed above the rubber track at the lower part of the trolley bracket. The rubber track surrounds the outside in a triangular shape, and the inner surface of the rubber track has two guide flanges protruding at equal positions. The longitudinal gap between the support wheel and the guide wheel accommodates the guide flange, and the upper part of the guide flange has a notch. The driving pin shaft is welded at the corresponding position on the longitudinal outer circle of the driving wheel, and the outer surface of the rubber track has intermittent herringbone patterns. The double-sided support makes the entire walking device safer and more reliable. The middle row of guide wheels and the support wheel are located inside the concave shape, which has a simple structure to prevent derailment, is easy to produce, has low manufacturing cost, good shock absorption effect, lightweight quality, and good anti sinking effect. Energy saving, strong flexibility, high harvesting efficiency