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7.21.2 Adjusting the backrest width
The backrest width is adjusted by performing the following tasks:
• Adjust the backrest tube.
• Adjust the backrest:
- Sling backrest, as described in chapter 7.18.2.
- Flex3 backrest, as described in chapter 7.21.3.
• Replace the backrest cushion (these are available in various widths).
When modifying the backrest width, the seat width must also be correspondingly adapted. Please
see chapter 7.21.1.
Requirements:
• 3 mm Allen key
• 5 mm Allen key
• 13 mm Open-ended spanner
The screw position for the backrest width, refer to the table: