4-4
TR/YR Owners Manual
OM_TR_0712RevC
CHAPTER 4: BACKRESTS AND PUSH HANDLES
Figure 4-6
Adjusting the Backrest Angle
Backrest
Allen Screws
Link Screw
Link
Backrest Bracket
Changing the Backrest Angle
(TR Series 3)
Tools Needed:
• Two 1/2” Open End Wrenches
• 1/8” Allen Wrench
1. On each side of the chair, using the Allen wrench, remove the Button Head Cap screw and lock washer. See
Figure 4-7.
2. On each side of the chair, using the Open End wrenches, loosen but do not remove the stop bolt and nylock nut.
3. Adjust the backrest to the desired angle. On one side of the chair, while holding the backrest in place, align one
of the five holes in the backrest cam with one of the three holes in the backrest mount. Place the Button Head
Cap screw through the lock washer, the backrest cam and into the backrest mount. Securely tighten.
4. Securely tighten the stop bolt and nylock nut.
5. Repeat Steps 3 and 4 on the other side of the chair.
Figure 4-7
Changing the Backrest Angle
Nylock
Nut
Backrest
Backrest
Mount
Backrest
Cam
Lock Washer
Button Head Cap Screw
Stop Bolt