Condition of the structure sensors Arm 1 / Arm 2 / Telescope.
When the machine is lowered, the 3 indicators must be lit in green.
Condition of pedal upper control station, lit if active.
Info elevation speed selector (Engine high or low speed).
Info engine running (sensor RPM info).
Info auxiliary group active (output).
Generator (option), lit if active.
Tilt, lit green if ok and red if beyond or disconnected.
Overload, lit red if active.