4-9
TR/YR Owners Manual
OM_TR_0712RevC
CHAPTER 4: BACKRESTS AND PUSH HANDLES
I
WARNING
The threads on the Allen screws that secure the backrest posts to the backrest have been treated with Vibra-TITE
®
VC-3, a locking and sealing coating, to reduce the possibility that they will become loose. You should be able to
adjust the backrest height approximately four times without reapplying thread lock to these screws. TiLite requires
that you reapply Vibra-TITE
®
VC-3 after every fourth adjustment.
If you ignore this Warning, your backrest posts
could become loose or disconnected from the wheelchair, you could fall, tip over or lose control of the wheelchair and
seriously injure yourself or others or damage the wheelchair.
Figure 4-13
Adjusting the Backrest Height
Backrest
Posts
Allen
Screws
Backrest
Replacing the Backrest
(TR and YR Series 2)
Tools Needed:
• 7/16” Open End Wrench
• 5/32” Allen Wrench
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 posts. See “Adjusting the Backrest Height (TR and YR Series 2)” on pages 4-5 to 4-8.
3. Remove the backrest sleeves. See Figure 4-9.
4. Remove the two Allen screws that secure each backrest bracket to the backrest. Note the order of the washers
and spacers and the position of the backrest cord, if any. See Figures 4-10, 4-11 and 4-12.
5. Install the new backrest and securely tighten the Allen screws removed in Step 4.
6. Install the backrest sleeves in the new backrest.
7. If the backrest is titanium, install the end plugs, removed in Step 3, in the new backrest.
8. Reinstall the backrest posts removed in Step 2.
9. Reinstall the backrest upholstery removed in Step 1.