What is the suitable grass height for cutting?If the grass is 4 inches or taller, be sure to overlap your mowing passes. For optimal results, trim no more than one-third of the grass height at a time to promote deeper root growth.What should I do if it gets stuck during use?If the blades get stuck, simply pull it back to clear out any branches or clippings.What kind of maintenance is needed?For maintenance, apply oil or lubricant to the blades to prevent rust. If cutting performance drops, tighten the blades using the adjustment screw.