05
SPEX BACK SUPPORT USER MANUAL
12
WWW.SPEXSEATING.COM
FAILURE TO HEED THESE WARNINGS COULD CAUSE SEVERE INJURY TO THE
WHEELCHAIR USER OR OTHERS.
NOTES: The rear clear zone is measured from
the rearmost point on an occupant’s head.
The front clear zone is measured from the
frontmost point on an occupant’s head.
Seated head height (HHT) ranges from about
1200 mm for a small adult female to about
1550 mm for a tall adult male.
FCZ = 650mm (25.6”) with upper-torso re-
straint
= 950mm (37.4”) with only pelvic restraint
NOTE: It is strongly recommended that
both pelvic and upper-torso belts be used.
Postural support devices that are not labelled as conforming to ISO 16840-4 may be used
when in a vehicle, but should not be relied on for occupant restraint.
Both pelvic-belt and shoulder-belt restraints as a part of a complete WTORS which meets
ISO 10542-1 or ANSI/RESNA WC18 shall be used to achieve affective occupant restraint
and optimum protection in a vehicle impact; the belt and restraints should be fitted to
the user in accordance with the WTORS manufacture’s instructions
Backrest mounting hardware must be installed correctly. Refer to the appropriate section
for correct backrest hardware mounting instructions.
If the wheelchair is being transported whilst unoccupied, the wheelchair must still be
secured to the WTORS.
Children whose mass is less than 22kg (48.5 lbs) should be transferred from their seating
system into appropriate child restraint systems intended for use in motor vehicles.
Always use appropriate restraints in a vehicle.
Sufficient forward and rearward clear space should be provided around the wheelchair
occupant. Forward clear-space zone (FCZ) needs to be larger when a shoulder-belt
restraint is not used
13.
19.
18.
17.
16.
15.
14.
TOP VIEW
SIDE VIEW
