19
3.9.2 Battery pack
Charging socket
1
Power outlet
2
Carrying handle
3
3.9.3 Climber unit
Lifting frame
1
Support wheels on lifting frame
2
Main wheels
3
Automatic step edge brakes
4
Spring-loaded contacts to battery
power outlet
5
Mounting socket for handle unit
column
6
5
6
3
4
2
1
3
1
2