TiLite Twist, Owner'S Manual

Page: 111 / 119

15-7
Twist Owner’s Manual
OM_TWIST_0811RevA
CHAPTER 15: TRANSPoRTATioN oPTioNS
I
WARNING
It is imperative that the wheelchair ALWAYS be positioned in a vehicle with appropriate clear
zones around the wheelchair because in a frontal impact, even when properly secured, the
wheelchair and its occupant will move from their secured position. Clear zones are required
whether the wheelchair occupant is restrained by both pelvic and upper torso belts or only by
a pelvic belt. The use of only pelvic or only upper torso belts is highly dangerous and is never
recommended. The minimum necessary clear zones for the TiLite wheelchairs are shown in
Figure 15-3.
Figure 15-3
Clear Zones
• The rear clear zone is measured from the rearmost point on an occupant’s
head. The frontal clear zone is measured from the frontmost point on an
occupant’s head.
• FCZ = 26in. (650mm) with pelvic and upper torso belts and 37-1/2in. (950mm)
with pelvic belt only.
• Seated head height (HHT ranges from about 47in. (1200mm) for a small adult
female to about 61in. (1550) for a tall adult male).
SECURING THE WHEELCHAIR TO THE VEHICLE
I
WARNING
The Tie-Down brackets on your wheelchair were designed, located and installed by TiLite to
comply with ISO 7176-19 and SAE J2249 standards so as to ensure that they operate properly
and maximize the performance of the brackets in a frontal impact collision. The two front Tie-
Down brackets (see Figures 15-4 and 15-5) should NEVER be removed or relocated to another
position on the wheelchair frame. The two rear brackets may be removed ONLY if it is necessary
to adjust the seat depth. However, any adjustment of the rear Tie-Down brackets must ALWAYS
be performed by an authorized TiLite dealer, and, even if such an adjustment is made, you must
ALWAYS use the bolts and nuts originally shipped with your wheelchair. If you substitute another
bolt or nut, the Tie-Down brackets may not operate properly. Notwithstanding this Warning
regarding removing or relocating the brackets, you should ALWAYS inspect the brackets before
securing the wheelchair in a motor vehicle to ensure that they are properly secured, and, if
necessary, the bolts should be tightened.
1. Whenever feasible, wheelchair users should transfer to the Original Equipment Manufacturer vehicle
seat and use the vehicle-installed restraint system.
2. This wheelchair must be used ONLY with a WTORS comprised of a four-point, strap-type wheelchair
Tie-Down and a three-point, vehicle-anchored, pelvic and torso belt-type, occupant restraint that has