1. Always check whether the fasteners are loose and tighten them.

2. Strengthen the maintenance of bearing seats, couplings, and transmission boxes, and regularly add or replace lubricating oil and grease.

3. For chaff cutter with adjustable cutting gaps, the cutting gap should be reasonably adjusted according to the thickness of the crop stems to ensure that the mowers work normally.

4. When the blade edge is found to be blunt, use a whetstone to sharpen the moving blade.

5. After each shift of work, the dust and dirt on the machine should be removed in time; after each quarter of work, the debris in the machine should be removed, anti-rust oil should be applied to the working parts, and the machine should be placed in a ventilated and dry place indoors.