Arjohuntleigh Enterprise 5000X Notice D'utilisation page 27

To lower the folding split side rails:
The head end and foot end side rails both operate in the same
way
Hold either side rail handle (1). Pull the release lever (2)
and lower the side rail (3) so that it folds down below the
mattress platform.
2
Folding split side rail operation
To raise the side rail:
Hold either side rail handle (1). Pull the side rail up and
away from the bed until it locks in the raised position with
an audible "click".
1
3
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