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18 If you ignore these Warnings or fail to inspect or maintain your
wheelchair as directed in the manual , you may fall, tip over or lose
control of the wheelchair and seriously injure yourself or others or
damage the wheelchair.
10.11 Rear wheels
10.11.1 Adjusting Quick-Release Axles
• Remove the rear wheel from the wheelchair.
• Behind the quick release button, there is a nut that adjust the
length of the axle.
• Hold the axle with a wrench at the other end (near the detent
balls) (Fig. 33) and turn the nut behind the quick release
button to change the length of the axle.
• Reinstall the quick release into the axle bushing on the
wheelchair
• Quick release detent balls should extend beyond the axle
bushing for a secure lock.
Fig. 33
10.11.2 Replacing/Adjusting hand rims
• Use a plastic tire removal tool to take off the tire (1) (Fig. 34).
• Remove all nuts (2) inside the rim (3).
• Replace the handrim (4) with a new one and align the
mounting holes (5).
• Reinstall and tighten the nuts firmly.
• Reinstall the tire on the rim.
Fig. 34
10.11.3 Adjusting the rear axle height
Fig. 35
• Loosen the nut holding the axle bushing.
(3) (Fig. 35 - Fig. 36)
• Move axle bushing (1) along mounting
plate (2).
• Reinstall the bushing in the desired
mounting hole and tighten nut (3).
The seat height, seat depth, back
angle, seating system/upholstery,
size/position of the rear wheels,
size/position of the front casters,
as well as the user condition
directly relate to the stability of the
wheelchair. Any change to one or
any combination of the nine may
cause the wheelchair to decrease
in stability. These adjustments must
be performed by a qualified
technician. Seat-to-floor heights
have specific positions depending on rear wheel size,
rear wheel position, front caster size/position and
seat-to-floor angle. These adjustments MUST be
performed by a qualified technician
10.11.4 Adjusting rear wheel spacing
The rear wheels can be adjusted
laterally by repositioning axle bushing
(1) (Fig. 36) on mounting plate (2).
• Loosen nuts (3) on the axle bushing
(1).
• Turn the bushing (1) in the desired
direction to adjust the spacing.
• Firmly tighten the nuts (3).
Fig. 36
10.11.5 Adjusting the toe-in/toe-out with rear
wheel camber.
Fig. 37
• Remove the rear wheel.
• Maintain the wheelchair on a
horizontal plane with the support
of the three other wheels.
• Loosen nuts (1) (Fig. 37) while
keeping a bit of tension.
• Put the camber adjustment tool
on the axle bushing
• Use a set square and rotate the
axle bushing so that the tool is
parallel to the set square (and
perpendicular to the ground)
• With one hand, hold the tool and
the mounting plate together to
keep the setting.
• With the other hand, use a ratchet to tighten firmly the nut (1)
facing inside the wheelchair.
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