Sunrise Medical Jay J3 Back Owner's Manual page 9

JA Y 3 B AC K
5. Attaching and aligning the lower hardware receivers.
NOTE - Make sure the upper and lower brackets are aligned and parallel to the Seat frame.
a. Test the back release for the upper mounting hardware by pressing the release levers
(A) forward and removing the back from the chair. Proper alignment of the mounting
hardware and back can be determined by the smooth attachment and release of the
back assembly.
b. If needed, continue small adjustments until the back can be attached, and/or removed
smoothly.
c. Loosen screws (B) to install lower receivers on back canes (C)
d. Using a 5/8" wrench, loosen the nut (D) that secures the lower mounting pin (E) so
that it slides fore and aft.
e. Slide lower receiver up (F) until it surrounds the lower mounting pin (E).
NOTE – Leave 1/8" to 1/4" of space between the bottom of the lower mounting pin (G) and the
bottom of the lower receiver channel (H).
f. Once properly aligned, tighten the hardware receiver clamp screws (B). The recom-
mended torque is 75-85 in-lbs (8.5-9.3 Nm). Then tighten the lower mounting pin nut
(D). torque to 100-110 in-lbs 11.3 - 12.4 Nm)
g. Finish by inserting the locking pin (Fig.15) (H) into the receiver.
6. Function check, and micro adjustments to height, depth, and angle.
a. Attach the J3 Back to the top and bottom mounting hardware
receivers and push down until the assembly is locked. There should be a click when
locked properly.
b. If needed, continue small adjustments until the back can be attached, and/or removed
smoothly, and locks correctly into the mounts.
c. To make micro adjustments, loosen bolts ( I ) and ( J ). This will allow for minor
changes in height, depth and angle. Retighten all bolts to required specs and test back
function and quick-release.
d. Or, to make macro adjustments, loosen, but do not remove, bolts (A), (C), and (G)
(Figs. 13, 14, and 15). Position backrest to desired height, depth and angle.
e. Retighten all bolts to required specs and test back function and quick-release.
D. ADJUSTING J3 HEIGHT, DEPTH, AND ANGLE
Once the initial installation is complete, adjustments can be made with the user seated in
the chair for a personalized fit. Make sure that the user does not apply full to the back until
the hardware has been fully tightened to the specified torque requirements.
1. Height adjustment
a. With the user seated in the chair, identify the correct height for the back.
b. Have the user slide forward slightly, and using a 10mm wrench Loosen the nuts ( I ).
c. Move back to the correct height, and tighten the nuts to 75-85 in-lbs, or (8.5-9.3 Nm)
2. Depth and angle adjustment
Depth adjustment varies with the type of hardware ordered. Standard hardware including
Rigid, Rigid Fixed, and Tilt hardware has approximately 2 inches of depth adjustment.
Extended (adjustable) hardware offers up to 3.4 inches of depth adjustment.
a. Using a 10mm wrench, loosen the left and right hex screws ( J ) on the bracket slots.
b. Adjust the depth and/or angle settings and securely tighten the screws to lock in the
adjustment. Recommended torque specification is 100-110 in-lbs or (11.3 -12.4 Nm).
c. If additional depth is needed, remove the J3 back from the receivers. Remove the
screws(K) from the receiver using a 4mm hex key and reposition the hardware to the
desired depth. Standard hardware (K) has 2 depth settings, Extended (Adjustable)
hardware (L) has 4 depth settings.
d. After adjusting to the correct depth, tighten the screws to 25-35 in-lbs (2.8 - 4 Nm).
E. CHECK OUT
Ensure that all hardware has been properly tightened according to suggested specifications.
a. Make sure the Back Support is locked, and the locking pin is inserted into the receiver.
b. Check that the Back Support can be attached smoothly and securely, by attaching and
removing the assembly several times.
c. Double check fit and comfort for the user before putting the Back Support into use.
d. Failure to follow this check out procedure could result in injury and/or damage to
your Back Support and/or components.
16
17 18 19
WARNING
9
13 14 15 17
Standard- 2 depth settings
Extended - 4 depth settings
4 point Standard and Extended
2 depth settings
16
17
J
I
18
19
4 depth settings
103721 Rev. F