05
SPEX BACK SUPPORT USER MANUAL
11
WWW.SPEXSEATING.COM
Transit Warnings
1. The distance between the top of the user’s shoulder and the top of the back should not
exceed 165mm (6.5”).
2. The Spex seating system must only be used for transport with wheelchair bases that are
tested as part of a wheelchair system that conforms to performance requirements of ISO
7176-19 and RESNA WC-4:2012, Section 19.
3. The Spex seating system should only be used for transport on wheelchair frames that
provide four securement points strap-type tiedowns and pelvic-belt anchor points that
conform to the requirements of RESNA WC-4: 2012, Section 19.
4. The wheelchair must be labelled as appropriate for use as a seat in a motor vehicle,
dynamically tested to the performance requirements of ISO 7176-19 and installed, used
and maintained according to the manufacturer’s instructions.
5. The Spex seating system must only be used as indicated in this user manual.
6. Both pelvic and shoulder belt restraints as a part of a complete Wheelchair Tie down
and Occupant Restraint System (WTORS) which meets ISO 10542-1 shall be used to
achieve effective occupant restraint and optimum protection in a vehicle impact; the
belt restraints should be compatible with the specific wheelchair, and fitted to the user
in accordance with WTORS manufacturer’s instructions.
7. Back supports with adjustable recline angles should not be tilted back more than 30° to
the vertical during travel in vehicles unless necessary for the medical and postural needs
of the occupant.
8. If the back support must be adjusted to an angle that is greater than 30° to the vertical
during travel, the upper shoulder-belt anchor point should be adjusted rearward to
maintain belt contact with the wheelchair occupant’s shoulder and chest.
9. The Spex seating system must only be used for forward-facing seating in motor vehicles.
10. In order to reduce the potential of injury to vehicle occupants, wheelchair-mounted
rigid trays not specifically intended for use during travel in motor vehicles must be:
Removed and secured separately in the vehicle or secured to the wheelchair so they will
not break free in a crash and
• Be positioned with a gap of at least 75mm (3”) between the back edge of the tray and
the wheelchair occupant’s abdomen and/or chest so as not to interfere with the proper
belt restraint use, and
• Have energy absorbing padding placed between the back edge of the tray and the
wheelchair occupant.
11. Alterations or substitutions must not be made to the seating system structure, parts or
components, without first consulting Spex.
12. The use of a postural pelvic belt and upper torso belt attached to the wheelchair base or
seat frame are strongly recommended.
