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7.21.3 Adjusting the Flex3 backrest
Requirements:
• Phillips screwdriver
• 5 mm Allen key
• Remove the front lateral plates (2 and 4) from the backrest (1) by loosening and removing the
five hexagon socket head screws (3).
• Shift the position of the rear plate halves (three settings are possible using the drill holes).
- Before pulling the Flex3 backrest apart, a "1" will be visible in the
small, rectangular cut-out.
- After pulling the Flex3 backrest apart, a "2" will be visible in the
small, rectangular cut-out.
• Re-insert the two screws (A) into the middle plate.
• Fasten the front lateral plates (2 and 4) again.