1. Maintenance time and date: record the start time and end time of equipment maintenance and the specific date of maintenance.

2. Overhaul items: list items for inspection, maintenance or replacement of equipment, such as cleaning, lubrication and replacement of damaged parts.

3. Overhaul process: describe in detail the problems encountered in the overhaul process and their solutions. For example, if a faulty or damaged part is found, its position, size and type should be recorded, and the specific steps of replacement or maintenance should be recorded.

4. Maintenance personnel information: record the names, titles and signatures of the maintenance personnel.

5. Maintenance result: Evaluate the state of the equipment after maintenance, including the performance, efficiency and safety of the equipment.