The maintenance of portable light-duty gasoline lawn mowers is very important, especially the operating lever part. Improper maintenance can shorten the service life. Below are three main steps for maintaining the operating lever part:
　　
1、 Working head gearbox
　　
Install blades, grass heads, and grass extractors to form gearboxes or working heads. The gearbox works in conjunction with umbrella shaped spiral gears, and to meet different working angles, it uses a dry lubrication method with lubricating grease internally. After a period of operation, the lubricating grease will gradually detach from the gears, resulting in low lubricating oil content or dry wear on the gears. Therefore, adding lubricating grease and butter to the gearbox every 30 hours of operation is a necessary maintenance measure.