J3 B AC K
A. CENTER OF GRAVITY
Installing a back support on a wheelchair may affect the center of
gravity of the wheelchair, and may cause the wheelchair to tip back-
wards potentially resulting in injury to the rider.
B. ANTI-TIPS
Anti-tip tubes can help keep your chair from tipping over
backward in normal conditions.
1. Sunrise recommends the use of anti-tip tubes
2. ALWAYS assess the need for anti-tips or an amputee axle
adapter brackets that could be added to the wheelchair to
help increase the stability of the wheelchair and seating system.
If you fail to heed these warnings damage to your chair, a fall, tip-
over or loss of control may occur and cause severe injury to the
rider or others.
C. PUSHING OR LIFTING
Do not use the J3 Back to move or push the wheelchair.
1. Do not use the J3 back handle to lift the wheelchair. It is
intended only for Back removal.
2. Improper use of the back by pushing or pulling may cause
the back to unexpectedly detach from the wheelchair.
If you fail to heed these warnings damage to your chair, a fall, tip-
over or loss of control may occur and cause severe injury to the
rider or others.
D. COMPATIBILITY
The J3 Back is designed to be compatible with most wheelchairs
with the following exception:
1. Wheelchairs that are angle adjustable with recline or tilt, and
result in a back angle greater than 60° from the vertical
J3 back use with these types of wheelchairs may cause the back to
accidentally disconnect from the wheelchair. This could result in a
fall or potential injury of the rider and/or caregiver.
103721 Rev. F
WARNING
WARNING
WARNING
WARNING
E.
J3 BACK TRANSIT SAFETY
The J3 back has been dynamically tested for use in a motor vehicle. This
system conforms with ANSI-RESNA WC-20. If the J3 back is to be used in
a transit situation, it must be mounted to a wheelchair that conforms to
the performanace requirements of ANSI/RESNA WC-19. For Rider safety,
Please follow all installation, use, and maintenance instructions within this
manual as well as the transit instructions listed below .
1. If possible and feasible, the rider should transfer to the Original
Equipment Manufacturer vehicle seat and use the vehicle restraints.
2. The distance between the top of the user's shoulder and the top of
the back should not exceed 6.5" (16.5 cm).
3. The wheelchair must be labeled as appropriate for use as a seat in a
motor vehicle, dynamically tested to the performance requirements
of ISO Standard 7176-19 and installed, used and maintained accord-
ing to the manufacturer's instructions.
4. If the original wheelchair seat was replaced, the new seat must be
approved for wheelchair transit, installed and used as indicated in the
manufacturer's instructions.
5. The Wheelchair Tiedown and Occupant Restraint System (WTORS)
should be compatible with the specific wheelchair, used as indicated
in the manufacturer's instructions and should comply with the per-
formance requirements of ISO Standard 10542.
6. The Wheelchair must be forward facing during transport.
7. In order to reduce the potential of injury to vehicle occupants
wheelchair-mounted accessories such as trays and respiratory equip-
ment should be removed and secured separately.
8. This product is intended for use by adults ranging in weight from 79
to 300lbs or up to 500 lbs. (227 kg) for widths over 22".
9. Postural support devices such as pelvic positioning belts, anterior
trunk supports or postural supports such as lateral trunk supports
should not be relied on for occupant restraint in a moving vehicle
unless they are labeled as conforming to ISO Standard 16840-4.
10. Alterations or substitutions should not be made to the structure of
the chair or seating system, parts, and/or components, without con-
sulting the manufacturer.
11. Backshell mounting bracket must be attached in the "leg up" posi-
tion for transit use. (See below.) Refer to the appropriate section
for correct back hardware mounting instructions.
If you fail to heed these warnings damage to your chair, a fall, tip-over or
loss of control may occur and cause severe injury to the rider or others.
Top of back
"Leg up"
Position
Correct bracket
orientation for transit
4
III. GENERAL WARNINGS
1
2
WARNING
1
Incorrect bracket
orientation for transit
2