Hold the Handle Pipe of inclining area and maneuver the stacker slowly.
Brake (Wheel Lock) is equipped at right side caster.
(Both wheels get locked at same time firmly)
① Lock the Brake (wheel)
Push down Brake Pedal
② Release the Brake
Push down Lock Release Pedal
Slide the battery along with rail and insert until lock hook clicks into place.
Release Lock Hook and then pull up battery.