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• Turn the levers (1) of both holders until the cams (2) can be pulled out of
the slots on the plates.
Lower backrest holder
• Unhook the upper backrest support and reposition it in the desired slots.
• Bring the lower backrest support into the desired position.
• Turn the levers (1) of both holders until the cams (2) can be slid into the
slots on the plates.
• Slide the holder in and turn until it reaches the securing belts.
• Secure the lever using the securing belts.
Retainer plate
Upper backrest support
Lower backrest holder