ENGLISH
ATTACHING FOUR POINT HARDWARE
(OPTIONAL) (FIG. 7, 8, 9)
Tools required (included with J3 Back with 4-Point
Hardware)
•
4mm hex key
•
10mm box end wrench
•
5/8" box end wrench
Installing the 4-Point Hardware
1. Loosen the clamp screws (A) with the supplied 4mm
hex key and slip the clamps around the Back Canes
(B).
2. The mounting hardware should be at equal heights on
each back post (Fig. 8) and parallel to the seat frame
(Fig. 7).
3. Hand tighten clamp screws (A). Loosen bracket nuts
(C) and Mounting Pin bolts (F) using the supplied
10mm box-end wrench until hardware can move easily
in all directions
NOTE:
For large tube diameters, clamp screws may have to
be removed completely.
4. Attach the J3 Back by inserting left and right Mounting
Pins (D) in the left and right Latch Receivers (E).
5. Install back to the approximate location, relative to both
chair and user.
6. Tighten bolts on the inside of the Mounting Pin (F).
Torque to 100 - 110 in-lbs.(11.3 - 12.4 Nm).
NOTE:
Receivers may require additional lateral adjustment
to ensure proper alignment.
7. Tighten bracket nuts (C). Torque to 75 - 85 in-lbs. (8.5 -
9.3 Nm).
NOTE:
Back height may require additional adjustment to
ensure proper fit to the user.
8. Test back release by pressing the release levers (L) for-
ward and removing the back off the chair. Proper align-
ment of the mounting hardware and back is achieved
when smooth attachment and release can be easily
done.
9. If proper alignment has not been achieved, adjust the
components until properly aligned.
10.Once properly aligned, tighten the hardware receiver
clamp screws (A). Torque to 75 - 85 in-lbs (8.5 - 9.3
Nm)
11. Loosen bolts (G) to install Lower Receivers on Back
Canes (H).
12. Use a 5/8" end wrench to loose the nut (K) that
secures the Lower Mounting Pin (I) so that it slides fore
and aft.
J3 Back 106109
13. Slide lower receiver up (J) until it surrounds the Lower
Mounting Pin (I).
NOTE:
Leave 1/8" to 1/4" of space between the bottom of
the Lower Mounting Pin (I) and the bottom of the
Lower Receiver Channel (J).
NOTE:
Make sure the Upper Mounting Bracket and Lower
Receiver Bracket are in alignment on the Back
Canes. Misalignment of the brackets may result in
impaired function of quick-release.
14. Once properly aligned, tighten the hardware receiver
clamp screws (G). The recommended torque specifica-
tion is 75 - 85 in-lbs (8.5 - 9.3 Nm). Then tighten the
Lower Mounting Pin nut (K). Torque to 100 - 110 in-lbs.
(11.3 - 12.4 Nm).
B
A
10
I NS TAL LAT ION
Figure 7
PARALLEL
Figure 8
D
E
F
L
US=Rev.F, EU=Rev.3.0
C