VEVOR E490T Manual Del Usuario página 154

Take out a new blade, pay attention to safety, the blade is facing
outward.before installing the blade, please loosen the blade at the upper
end of the knife holder on the knife holder, tighten and fix it with screws in
turn, and then adjust according to the cutter depth adjustment method.
After the blade is packed, please go to a professional knife sharpening unit
to ensure the grinding quality.Note: a blunt knife cannot cut paper correctly,
and thick paper or card-board is often cut.It's easy to blunt the blade. If it is
found that the quality and accuracy of the cutting can not be found in the
place of this cutter.When the set standard is consistent, the blade must be
replaced and a replacement blade must be kept in hand at all times.lt can
make the work go smoothly. When you need to change the blade. be sure
to change it according to the blade.The steps described are correct.In
order to avoid injury, the replacement of the blade must be handled
carefully and carefully. and safety must be paid attention to.