Acer ES 5 Series User Manual page 8

VII. RIDE AND SAFETY
A learning process is necessary for the use of this device. A use of it
without a correct learning process can cause injuries. Use protections
to prevent damage. Once you complete these steps you can turn on the
electric scooter:
BRAKE ADJUSTMENT
Before every ride check brakes. If you feel the brake is too tight, use
the hex wrench counterclockwise to loosen the screws on the pressure
plate on the disc brake seat, release the brake line to shorten slightly the
exposed length and tighten the screws of the pressure plate. If you feel
that the brake is too loose, release the screws on the pressure plate, drag
the brake cable to slightly lengthen the length and then lock the screws on
the pressure plate.
WARNING! When hard braking, you risk serious injury due to loss of
traction and falls. Maintain a moderate speed and look out for potential
hazards.
USE
Keep one foot on the board and one foot on the ground. Immerse yourself
with your foot on the ground, when the speed reach to 3km/h start
accelerating. Keep another foot on the board and accelerate appropriately
or maintain a certain speed. This action is necessary to start the march,
for your safety.
EN-7