Use instructions:
F7
1.Bumper bar assembling (see F7): insert the bumper bar into the hole,
then install and fix the bumper bar.
detach (see F8): press the button inside the bumper bar joint, pull out the
bumper bar, so it can be detached.
use (see F9): press the buttons on the two sides of the bumper bar, to
adjust the bumper bar up and down.
Swivel lock
2. Swivel wheels
To lock the swivel wheels push both swivel lock levers down, see F10.
To detach the swivel wheels press down the steel button inside (siehe F11)
and pull out the wheels. To detach the rear wheels press button F12 and pull
out the wheels.
F10
F8
F11
14
F9
F12