Billow Technology URBAN85 Guide De L'utilisateur page 30

If the E-scooter remains stored for more than 120 days they must be charged, by
the corresponding distributor. The non-maintenance of the same leaves them
out of guarantee.
Maintenance of bearings
The electric scooter has sealed bearings and dust proof so that lubrication
is not necessary. Check bearing wear at regular intervals to avoid unsafe
driving. Do not raise and lower and do not apply excessive force to avoid
damaging the bearings.
Maintenance of the wheels
Check the wear of the wheels at regular intervals to avoid unsafe driving.
Brake maintenance
The brake shoe is made of plastic. Check the wear of the brake shoe at
regular intervals to avoid unsafe driving. Use only the manual brake in case
of problem with the electric brake. When the manual brake shoe measures
1.3mm, it is necessary to replace it.
Mantenimiento de tornillos y otras sujeciones
Make sure all screws are properly tightened to avoid dangerous situations.