VEVOR E490T Manual Del Usuario página 156

Lubrication and maintenance
1. Lubrication
The machine should open the cover every month, check the cleaning,
fasten the parts and lubricate the transmission parts once a month. Please
be careful to avoid dripping lubricating oil on electrical circuits or electronic
components when refueling; in order to avoid failure.
2. Maintenance
When working, it is forbidden to put non-cutting objects on the machine, so
as to prevent hard objects from entering the knife and damaging the
cutter.Bound books should avoid bringing staples into the cutting area so
as not to damage the cutter. After the work is finished every day, wipe the
machine,remove debris, and cut off the power supply.