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SETTINGS AND MAINTENANCE – RIGID WHEELCHAIRS | USER MANUAL
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8.10.3 ADJUSTING THE CASTER HOUSING ANGLE
• 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).
• 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.
8.11 REAR WHEELS
8.11.1 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) 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 wheel-
chair.
• Quick release detent balls should extend beyond the axle bush-
ing for a secure lock.
8.11.2 REPLACING/ADJUSTING HANDRIMS
• On the Newton One wheel, the tire may stay in position. Use a
plastic tire removal tool to take off the tire (1).
• 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 (2) firmly.
• Reinstall the tire (1) on the rim.
8.11.3 ADJUSTING THE REAR AXLE HEIGHT
• 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).
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WARNING
The seat height, seat depth, back angle, seating system/ up-
holstery, size/position of the rear wheels, size/position of the
casters, as well as the user condition directly relate to the
stability of the wheelchair. Any change to any of these com-
binations may reduce the wheelchair’s stability. Seat-to-floor
heights have specific positions depending on rear wheel size,
rear wheel position, caster size/ position and seat-to-floor
angle. These adjustments MUST be performed by a qualified
technician.
8.11.4 ADJUSTING REAR WHEEL SPACING
• Loosen the screws (1) below the rear camber tube clamp (left
and right).
• Move axle bushing in or out of the rear camber tube. NEVER
move the bushing further than indicated on its top.
• Tighten the screws on both rear camber tube clamp (left and
right).
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