Adjusting The Caster Wheels; Adjusting The Castor Journal Angle - "Standard" Castor Fork - Otto Bock Ventus Instructions For Use Manual

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6.3 Adjusting the Caster Wheels

6.3.1 Adjusting the castor journal angle ‒ "Standard" castor fork
When the rear wheels have been adjusted for the user, the castor journal angle must be adjusted at the castor
wheel adapter.
The threaded axle in both castor wheel adapters should be perpendicular to the ground to ensure optimum rolling
behaviour of the wheelchair. The castor wheel adapters permit continuous adjustment of this angle.
1) Lift off the plastic cover on the inner side of the frame (see fig. 25).
2) Slightly loosen the socket head screws on the inner side of the frame (see fig. 26, item 1/2). If necessary,
loosen and move the front screw (see fig. 26, item 1).
3) Remove the protective cap (see fig. 27, item 1).
4) Slightly loosen the socket head screw on the eccentric (see fig. 27, item 2).
5) Position the spirit level (see fig. 27, item 3).
6) Adjust the castor axle with a large flat screwdriver until it is vertical. The bubble in the spirit level must be in the
centre position (see fig. 28).
7) Tighten the socket head screw on the eccentric to 10 Nm (see fig. 27, item 2).
8) Tighten the socket head screws on the inner side of the frame to 23 Nm (see fig. 26, item 1/2).
9) Place the protective cap (see fig. 27, item 1) and the plastic cover on the inner side of the frame (see fig. 25).
→ The castor axle on each of the two castor wheel adapters must be positioned vertically.
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Ventus
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26
Adjustments
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