Sunrise Medical Jay J3 Back Owner's Manual page 8

J3 B AC K
C. J3 (FS & FA) HARDWARE
Please read the following instructions before beginning the installation. To install the J3 Back
with 4-point hardware, it is best to begin without a user in the wheelchair. Once the back
has been installed and minor adjustments are needed, the user can be seated back in the
wheelchair.
1. Tools required (included with the J3 back):
a. 4mm hex key
b. 10mm box end wrench
c. 5/8" box-end wrench
2. Remove existing back components
a. Remove the existing wheelchair back according to the wheelchair manufacturer's
instructions.
b. Remove any pre-existing back hardware or components.
3. Locating the hardware receivers
a. The backshell should come with mounting brackets (A) attached.
b. Visually determine the optimum clamp receiver location (B) on the back canes. The
mounting hardware should be at approximately equal heights on each back post (D)
and parallel to the seat frame (Fig. 12).
NOTE – A higher location on the back canes are generally better.
4. Attaching the Hardware receivers
a. Using the 4mm hex key, Loosen the clamp screws (C) and attach the clamp receiver
(B) to the backpost.
3. Attaching the Hardware receivers
a. Using the 4mm hex key, Loosen the clamp screws (C)
NOTE – For Large tube diameters, the clamp screws may have to be removed completely.
b. Attach and align the receiver to the wheelchair back canes.
c. Hand tighten the clamp screws (C).
d. Using a 10mm wrench, Loosen the bracket nuts (E) (Fig. 14) and the mounting pin
bolts ( I ) (Fig. 15)until you can move the hardware easily in all directions for adjust-
ment.
e. The receivers may require additional lateral adjustments to ensure proper alignment.
4. Attaching and aligning with the upper hardware receivers.
a. Attach the J3 Back to the hardware receivers by
inserting left and right mounting pins (F) in the left and right receivers (H).
b. Locate the back to the approximate location, relative to both the chair and the user.
c. Tighten bolts on the inside of the mounting pin ( I ) (Fig. 15), to a torque of 100-110
in/lbs. (11.3-12.4 Nm)
d. Tighten the bracket nuts (E). Torque to 75-85 in-lbs (8.5-9.3 Nm)
e. Test the back release by pressing the release levers (G) forward and removing the
back off of the chair. Proper alignment of the mounting hardware and back is correct
when it is possible to have a smooth attachment and release of the back assembly.
f. If proper alignment has not been achieved, adjust the components until properly
aligned.
g. Once properly aligned, tighten the hardware receiver clamp screws (C), Torque to 75-
85 in-lbs (8.5-9.3 Nm).
h. Finish by inserting the locking pin (Fig.15) ( J ) into the receiver.
103721 Rev. F
12 13 14 15 16
13
14 15
8
parallel
parallel
12
13
14
15