4-8
TR/YR Owners Manual
OM_TR_0712RevC
CHAPTER 4: BACKRESTS AND PUSH HANDLES
7. Reinstall the backrest upholstery and adjust the upholstery to the desired tautness. See “Velcro
®
-Style Adjustable
Back Upholstery” or “Tension Adjustable by Straps Back Upholstery” on pages 7-1 to 7-3.
Note:
If your backrest is set to 10” to 12-½” and you need to adjust the backrest height, the following procedures
apply:
1. Remove the backrest upholstery. See “Velcro
®
-Style Adjustable Back Upholstery” or “Tension Adjustable by
Straps Back Upholstery” on pages 7-1 to 7-3.
2. Remove the backrest from the backrest brackets. See “Replacing the Backrest (TR and YR Series 2)” on page
4-9.
3. If your backrest is to be set at 9” or 9-½”:
a. Remove the backrest posts from the backrest. See Figure 4-11.
b. If the backrest is titanium, remove the long end plugs in the bottom ends of the backrest and install
the short end plugs. See Figure 4-9.
c. Remove the threaded plugs in the bottom ends of the backrest posts. See Figure 4-9.
d. Reinstall the backrest posts in the backrest tubes.
e. Align the backrest posts inside the backrest so that the desired holes in the backrest posts align with
the second lowest holes in the backrest. See Figure 4-10.
f. Secure the backrest posts inside the backrest and the backrest to the bracket using the Allen screws
and locknuts. Note that the Allen screws used to secure the backrest posts inside the backrest will
also serve to secure the backrest to the backrest brackets. See Figure 4-10. Proceed to Step 5.
4. If your backrest is to be set at 8-½”:
a. Remove the backrest posts from the backrest. See Figure 4-11.
b. If the backrest is titanium, make sure that the long end plugs are installed in the bottom ends of the
backrest tubes. See Figure 4-9.
c. Remove the backrest sleeve from each backrest tube. See Figure 4-9.
d. Install the top end cap in each backrest tube. See Figure 4-9.
e. Secure the backrest to the bracket using the Allen screws. See Figure 4-12.
5. Reinstall the backrest upholstery and adjust the upholstery to the desired tautness. See “Velcro
®
-Style Adjustable
Back Upholstery” or “Tension Adjustable by Straps Back Upholstery” on pages 7-1 to 7-3.
Adjusting the Backrest Height
(TR Series 3)
Tools Needed:
• 5/32” Allen Wrench
Note:
In order to adjust the backrest height, it is helpful to remove the backrest upholstery. Therefore, make a note
of the tautness of the backrest upholstery before removing it so you can reinstall it to approximately the same degree
of tautness.
1. Remove the backrest pad. See “Velcro
®
-Style Adjustable Back Upholstery” or “Tension Adjustable by Straps
Back Upholstery” on pages 7-1 to 7-3.
2. On both sides of the chair, remove the Allen screw that secures the backrest post inside the backrest. See Figure
4-13.
3. Reposition both backrest posts to the desired height inside the backrest, and reinsert and securely tighten the two
Allen screws.
4. Make sure both backrest posts are the same height in the backrest.
5. Reinstall the backrest upholstery. See “Velcro
®
-Style Adjustable Back Upholstery” or “Tension Adjustable by
Straps Back Upholstery” on pages 7-1 to 7-3.