Adjusting The Sliders On The Frame; Adjusting Sliders With Shock Absorber System; Adjusting The Seat Height And Seat Angle - Otto Bock Ventus Instructions For Use Manual

Settings
Position of rear wheel
Move forwards (active setting)

6.2.1.1 Adjusting the sliders on the frame

The sliders can be moved continuously in a horizontal direction along the frame tube. To facilitate adjustment the
frame has a grid with 9 positions (see fig. 68).
1) Remove the wheels.
2) Place the wheelchair upside down.
3) Loosen the 2 x 2 Allen head screws on the sliders under the seat bottom (see fig. 1, item 1).
4) Move the sliders with the axle unit to the desired position (see fig. 1, item 2):
→ Use the grid as a rough guide (see fig. 2, item 1).
→ For a more accurate guide, measure the distance between the end of the tube and the outer edge of the
slider (see fig. 2, item 2).
5) Ensure that the depth setting is the same. Once changed, the left and right sliders must both have exactly the
same horizontal position on the frame.
6) Tighten the Allen head screws to 10 Nm (see fig. 1, item 1).
INFORMATION
Following adjustment, the track of the rear wheel, the caster journal angle and the knee lever wheel lock must be
checked and, if necessary, readjusted (refer to the corresponding section).
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6.2.1.2 Adjusting sliders with shock absorber system

Adjustment is done in the same way as for sliders without a shock absorber system.

6.2.2 Adjusting the seat height and seat angle

Position of rear wheel
Move upwards
Move downwards
10 | Ottobock
Effects
• Smaller wheelbase
• Less load on caster wheels = greater manoeuvrability
• Less stability of the wheelchair
• Wheelchair is easier to tip backwards when crossing obstacles
INFORMATION: An anti-tipper can be installed if necessary.
• Position recommended only for experienced users
Effects
• The higher the rear wheel position, the more the seat surface is tilted to
the rear
• Wheelchair is easier to tip backwards when crossing obstacles
• The change in the centre of gravity results in a lower, more stable seat
position in the wheelchair
• The seat height can be further adjusted in combination with a height
adjustment of the caster wheels.
• The lower the rear wheel position, the less the seat surface is tilted to the
rear
• Wheelchair is harder to tip backwards when crossing obstacles
• The seat height can be further adjusted in combination with a height
adjustment of the caster wheels.
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Ventus