Adjusting The Height Of The Rear Wheels; Adjusting The Height Of The Rear Wheels In The Shock Absorber System - Otto Bock Ventus Instructions For Use Manual

6.2.2.1 Adjusting the height of the rear wheels

The rear wheels can be moved vertically with the "long" slider in 15 height positions (see fig. 68) and with the
"medium" slider in 10 height positions (not pictured).
1) Remove the wheels.
2) Place the wheelchair upside down.
3) Loosen and remove the 2 Allen head screws on each clamping flange on the slider (see fig. 3, item 1; figure
with accessory mount).
4) Move the axle unit to the desired position on the slider (see fig. 4, item 2). Ensure the height settings are the
same.
5) Tighten the Allen head screws to 10 Nm (see fig. 3, item 1).
→ Once changed, the clamping flanges on the left and right must both have the same vertical position on the
slider.
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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6.2.2.2 Adjusting the height of the rear wheels in the shock absorber system

The rear wheels can be moved vertically with the "short" shock absorber system in 3 height positions (see fig. 72)
and with the "long" shock absorber system in 5 height positions (see fig. 73) (see fig. 5).
1) Remove the wheels.
2) Place the wheelchair upside down.
3) Loosen and remove the 2 x Allen head screws on each perforated plate from the clamping flange/spacer (see
fig. 6, item 1). Remove the axle assembly (see fig. 6, item 2).
4) Remove the spacers and place them in the required positions on the perforated plate (see fig. 7). Ensure the
height settings are the same.
Only if necessary: Turn the spacers (see fig. 8).
5) Hold the axle assembly with clamping flange to the perforated plates at the same height (see fig. 6, item 2).
6) Tighten the Allen head screws on each perforated plate from the inside to 10 Nm (see fig. 6, item 1).
→ Once changed, the clamping flanges on the left and right must both have the same vertical position on the
slider.
7) Put the wheels back on.
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).
INFORMATION
By disassembling and turning the perforated plate in the "long" shock absorber, additional height adjustments
can be implemented. For information on disassembly/assembly, see the 647G829 service manual.
Ventus
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