—start | to indicate the start of a command |
—stop | to interrupt or end a movement |
—end | to stop the operation |
—raise | to have a load raised |
—lower | to have a load lowered |
—forwards | to be coordinated with the corresponding hand signals |
—backwards |
—right |
—left |
—danger | for an emergency stop |
—quickly | to speed up a movement for safety reasons. |