Sunrise Medical JAY J2 User manual

Owner’s Manual
Jay®J2 Back
J2 Back
Improving People’s Lives

Back Model
Number
XT2505 Rev. J 2
J2 BACK
DETERMINING COMPATIBILITY
Wheelchair Types
The J2 Back is designed to be compatible with most wheelchairs
with the following exceptions:
Wheelchairs that are angularly adjustable, recline or tilt and result
in a back angle greater than 60 degrees from the vertical should not
be used.
WARNING
Use with these types of wheelchairs may cause the back
to accidentally disconnect from the wheelchair resulting
in a fall and the potential for serious injury.
The J2 Back has not been tested for use as seating in a motor
vehicle. As a result the performance of the back in combination with
wheelchairs that are labeled for transit use when used as a seat in a
motor vehicle is unknown. Sunrise Medical recommends that users
not occupy a wheelchair in a motor vehicle when using the J2 Back.
WARNING
Using a J2 Back as seating in a motor vehicle may cause
the back to accidentally disconnect from the wheelchair
resulting in a fall and the potential for serious injury.
Wheelchair Dimensions
The J2 Back is designed to replace the wheelchair’s sling uphol-
stery. the mounting hardware system is designed for tubular back
canes. Prior to installation determine if the wheelchair used has
compatible back canes. Start by checking the table below to see if
the back canes are a correct width.
Sunrise Medical recommends that a clinician such as a doctor
or therapist experienced in seating and positioning be con-
sulted to determine if a J2 Back is appropriate. Backs should
only be installed by an authorized Sunrise Medical supplier.
Maximum user weight: 250 lbs. (113 kg).
CAUTION
Installing a back support on a wheelchair may affect the
center of gravity of the wheelchair and may cause the
wheelchair to tip backwards potentially resulting in injury.
Always assess for the potential need for anti-tippers or
amputee axle adapter brackets to be added to the
wheelchair to help increase stability.
EASY CLEANING AND REASSEMBLY FOR
JAY® J2 BACK - 2500 SERIES MODELS
To clean back cover
Pull foam insert away from back shell. Unzip cover. Remove foam
and turn cover inside out. Zip cover closed to avoid snagging. If
applicable, note where lumbar shims are placed to ensure proper
re-assembly. Machine wash in warm water. Dry in dryer on
medium heat.
NOTE: Do not dry clean covers or use industrial washers and dryers to clean
cover. Do not steam autoclave. Do not bleach.
Replace foam in cover and zip closed. The “Top” label on the cover
should be at the top, rear of the foam. Ensure that the cover fits
properly by aligning the seams with the edge of the foam.
Replace lumbar shims if applicable. Place foam insert on shell.
Ensure that “Top” label on cover is at the top of the Back shell.
Press into the Back shell, matching the Velcro® strips on the cover
with the Velcro strips on the shell.
To clean back shell
Shell may be wiped clean with soap and water. No other
maintenance should be required.
MAINTENANCE AND TORQUE
SPECIFICATIONS
Sunrise recommends that all fasteners be checked for wear, such as
loose bolts or broken components every 6 months. Loose fasteners
should be retightened according to the installation instructions. All
fasteners should be tightened to 2.3 N-m (20 in-lbs). Contact your
authorized Sunrise Medical supplier immediately to replace any
broken components. Do not continue to use the system after
identifying loose or broken components.
Width of back canes from center to
center of the tubes (Fig. 1-A)
Minimum width Maximum width
inch cm inch cm
2512K 10.3 32.2 11.5 35.4
2513K 11.3 33.2 12.5 36.4
2514K, 2514TK 12.3 34.2 13.5 37.4
2515K, 2515TK 13.3 35.2 14.5 38.4
2516K, 2516TK 14.3 36.2 15.5 39.4
2517K, 2517TK 15.3 37.2 16.5 40.4
2518K, 2518TK 16.3 38.2 17.5 41.4
2519K, 2519TK 17.3 39.2 18.5 42.4
2520K, 2520TK 18.3 40.2 19.5 43.4
Figure 1
AA

XT2505 Rev. J
3
J2 BACK
Next check that the back canes
are a compatible diameter. The
strap style back mounting hard-
ware may be used on back canes
from 0.62 to 1.1 inches (16mm to
28mm) in diameter. (Fig. 2)
If you cannot determine that the
back canes are compatible please
contact your authorized
Sunrise Medical provider or
Sunrise Medical customer service.
FITTING THE J2 BACK
The J2 Back is designed to replace the wheelchair’s sling uphol-
stery. The initial installation should be done without the foam insert
in the back shell. Tighten all fasteners to 20 in.-lbs. (2.3 N-m) using
a Phillips No. 2 screwdriver.
1. Remove the upholstery from the back of the wheelchair.
2. Attach one bottom post bracket to each upright post of
the wheelchair.
a. Check the diagram for the proper holes for different wheel-
chair post diameters. (The bracket comes assembled to
attach to 7/8"–1" (2.2cm -2.5cm) posts. To attach 5/8"–3/4"
(1.6cm-1.9cm) posts remove caps and insert screws into
both inside holes.) Wrap the band around the wheelchair
post. Screw “A” may have to be loosened to align strap hole
with barrel nut. Place a washer on the screw and insert
through the proper hole.
b. Insert screw “B” into the side of the bracket and tighten
firmly to 2.3 N-m (20 in-lbs). Ensure that the screw engages
the insert inside the bracket.
c. Place caps over both screw heads.
d. To adjust the height of the bracket, loosen screw “A” until
bracket slides freely on wheelchair post. Once proper height
of the back is determined, tighten screw “A” to 2.3 N-m
(20 in-lbs). All future adjustments of the back height are done
with this screw.
3. Install the J2 Back.
Place the J2 Back in the wheel-
chair so that the bottom pins on
the back shell slide into the bot-
tom post brackets and the top of
the back rests against the
uprights. The top hooks (on the
upper portion of the back shell)
should rest flush against the
posts.
4. Bottom width adjustment.
Remove the J2 Back from the
wheelchair. Lift tab on bottom
brackets with a screwdriver tip
and slide the pins to adjust width
to match wheelchair post width.
Check to ensure the pins extend
to the full width of the bottom
post brackets. Count the num-
ber of holes exposed to ensure
the back is adjusted evenly on
both sides.
5. Top width adjustment.
Depress the silver pin on top
brackets with a screwdriver tip
and slide top bracket to adjust
width to match wheelchair post
width. Ensure that the back is
adjusted evenly on both sides.
Replace back in wheelchair.
6. Assess and adjust back
height.
Replace the foam insert. Assess
client for back height. Position
the user’s hips to the back of the
wheelchair. The center of the
bottom pin on the J2 Back
should be placed at approxi-
mately the level of the PSIS or
S1-S2 spinal level of the individ-
ual. (The PSIS is the top, rear of
the pelvis.) This will help main-
tain a stable pelvis when the
back angle is adjusted. To adjust
the height of the back, loosen
screw “A” and slide post brackets
up or down. Once proper height
is determined, tighten brackets
firmly to 2.3 N-m (20 in-lbs).
Wheelchair Post Bottom
Post
Bracket
For 5/8" – 3/4"
(1.6cm -1.9cm) tubing
use inside holes
For 7/8" – 1"
(2.2cm -2.5cm) tubing
use outside holes
Screw Cap
Part # 680C
Screw “B”
Screw “
A”
Bracket
Body
Bottom Pin
To p
Hook
Bottom Pin
Bottom Post
Bracket
A
Bottom
Post
Bracket
Figure 2

INSTALLING THE TOP QUICK-RELEASE
QUARTER TURN BRACKET HARDWARE
1. Attach one top quick-release quarter turn bracket to each
upright post of the wheelchair.
a. The top quick-release quarter turn bracket is designed to
fit on 5/8", 3/4", 7/8" and 1" (1.6, 1.9, 2.2 and 2.5 cm)
diameter back post tubing. (The bracket comes assem-
bled to attach to 7/8" or 1" (2.2 or 2.5cm) tubing) Check
diagram 1 to determine which strap hole is appropriate
for the installation. Wrap the strap around the wheelchair
post. Screw “A” may have to be loosened to align the
strap hole with the barrel nut located inside the bracket
body. Place a washer on screw “B” and insert the screw
through the appropriate hole in the strap.
b. Tighten screw “B” (to 2.3 N-m (20 in-lbs)) into the barrel
nut through the side of the bracket body. Tighten the
opposite screw if necessary.
c. Snap the screw caps over both screw heads.
d. To adjust the height of the bracket, loosen screw “A” until
the bracket slides freely on the back post. Once the
proper height of the back is determined, tighten the
screw firmly to 2.3 N-m (20 in-lbs). All future adjust-
ments of the back height are done with screw “A”.
e. Always turn the quick-release quarter turn bracket to the
“DOWN” position (diagram 2) to secure the top hook in
place.
CAUTION– The top quick-release quarter turn brackets must be in their
downward position when the back is in use. Improper use may cause
the back to unexpectedly detach from the wheelchair.
CAUTION– Do not use J2 Back to push or lift wheelchair. Improper use may
cause the back to unexpectedly detach from the wheelchair.
NOTE– The back is properly secured when the bottom pins are resting in
the lower post brackets and the upper quick-release quarter turn
brackets are installed above the back support’s top hook brackets
with the quick-release mechanism pointing down.
XT2505 Rev. J 4
J2 BACK
REMOVAL AND REPLACEMENT
Following installation and adjustment, the back can be easily
removed from the wheelchair if necessary. Simply twist the quick
release brackets out of the way on both sides and lift the back up
and out of the chair. To replace, lower the bottom pins into the
lower post brackets and rock the back backward until it rests
against the upright posts. Twist the quick-release brackets down
over the top hooks on the back. The back will not lose angle
adjustment when removed and replaced on the wheelchair.
Proper reattachment after removal
Check to make sure the pin attached to the backrest is resting
completely at the bottom of the slotted receptacle attached to the
wheelchair back cane.
Check to make sure that the quarter fastener attached to the
wheelchair back cane is turned downward in its locked position.
8. Assess and adjust back
angle.
Assess client for back angle. To
recline, turn screw “C” on the
back of the top bracket at the
rear of the back. Turning the
screw clockwise will make the
back more vertical. Turning the
screw counter clockwise will
recline the back. Check the hash
marks on both sides of top
brackets to ensure that the back
is evenly adjusted.
9. Add lumbar/pelvic shim(s)
as required.
Remove foam insert and unzip
the back cover. Insert the
lumbar/pelvic shim(s) inside the
cover behind the large piece of
foam where needed. Zip the
cover closed and place the foam
insert back in the shell.
Wheelchair
Post
For 5/8" – 3/4"
(1.6cm -1.9cm)
tubing use
inside holes
For 7/8" – 1"
(2.2cm -2.5cm)
tubing use
outside holes
Screw Cap
Quick Release
Quarter Turn
Bracket
Diagram 1
Bracket
Body
Screw “B”
Screw “A”
Diagram 2
Top hook
Hash Marks
Lumbar/
Pelvic
shim
Back foam
To p
Bracket
3
3
7
7

XT2505 Rev. J
5
J2 BACK
24 MONTH LIMITED WARRANTY
Each J2 back is carefully inspected and tested to provide peak per-
formance. Every J2 back is guaranteed to be free from defects in
materials and workmanship for a period of 24 months from the
date of purchase, provided normal use. Should a defect in materials
or workmanship occur within 24 months from the original date of
purchase, Sunrise Medical will, at its option, repair or replace it
without charge. This warranty does not apply to punctures, tears
or burns, nor to the back’s removable cover.
Claims and repairs should be processed through the nearest
authorized supplier. Except for express warranties made herein, all
other warranties, including implied warranties of merchantability
and warranties of fitness for a particular purpose are excluded.
There are not warranties which extend beyond the description on
the face hereof. Remedies for breach of express warranties herein
are limited to repair or replacement of the goods. In no event shall
damages for breach of any warranty include any consequential
damages or exceed the cost of non-conforming goods sold.

Sunrise Medical Inc.
7477 East Dry Creek Parkway
Longmont, Colorado 80503
USA
[phone]
In Canada [phone]
www.sunrisemedical.com ©2006 Sunrise Medical Inc. 9.06
XT2505 Rev. J