xsto CT420SC Operation Manual page 27

3.7.2 Initial position
3.7.3 At the beginning of going downstairs
Turn on the hand-held controller
switch
Move CT420SC stair climbing machine
to the edge of the upper platform, use
the hand-held controller to set
CT420SC to the automatic adjustment
mode of the loading plate, set the
speed to gear 1, and use the crawler
running mode to go
downstairs. Press the button of
support wheel automatic adjustment
mode on controller, the screen will
show that the automatic adjustment
mode of the support wheel is on, and
the rear support wheel will
automatically extend to the preset
Angle.
Make the CT420SC at the Loading
board automatic adjustment mode
and Rear support wheel extend
automatically mode （The display