Motion Composites APEX Aluminum, User Manual

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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.
10.10 Front casters, forks
and fork stem support
assemblies
10.10.1 Removing / Installing / Repositioning the
front wheel
1
• Loosen and unscrew (1)
(Fig.21).
• Slide out the fork wheel
axle
• Remove, install or
reposition the front
caster.
• Tighten screw (1) firmly.
Fig. 21
10.10.2 Removing/Installing the caster mount
• DO NOT remove
security screws.
• The caster mount
is only installed and
adjusted at Motion
Composites.
Fig. 22
10.10.3 Adjusting the caster housing angle
Fig. 22a
1
• All four wheels
should be touching
the floor.
• Use the integrated
level on the fork
housing.
• If the caster
housing is not level,
loosen the screws
(1) (Fig 22a)
• Rotate the caster
housing to adjust
the angle until the
bubble is centered
in the level.
• Tighten screws
(1). This will hold
the caster housing
position.
• Check again the
integrated level to make sure that the caster housing is
perpendicular to the ground.
10.11 Rear wheels
10.11.1 Adjusting Quick-Release Axles
Fig. 23
• 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. 23) 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.
10.11.2 Replacing/Adjusting hand rims
• Use a plastic tire removal tool to take off the tire (1) (Fig. 24).
• 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. 24
10.11.3 Adjusting the rear axle height
Fig. 25
1
• Loosen the screws (1) on both rear
camber tube clamp (left and right)
• Move the rear camber tube along
the rear camber tube support
• Tighten the screws on both rear
camber tube clamp (left and right)
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