9-2
TR/YR Owners Manual
OM_TR_0712RevC
CHAPTER 9: AXLES AND AMPUTEE ADAPTERS
If the release handle does not flip back and forth from locked to unlocked properly, or if you cannot fully engage it in
the locked position or the unlocked position, the procedure below will permit you to adjust the operation of the handle.
Tools Needed:
• 5/64” Allen Wrench
1. Flip the quick-release handle to the unlocked position and remove the rear wheel and Quick-Release Axle. See
Figure 9-2.
2. Flip the quick-release handle to the locked position.
3. To adjust the “play” between the quick-release handle and the release button inside the quick-release nut: (a)
loosen Set Screw 2 on the quick-release nut; (b) rotate the quick-release nut clockwise or counter-clockwise on
the axle until the release button inside the quad quick-release nut just touches the release handle while it is in the
locked position; and (c) tighten Set Screw 2.
4. Adjusting the “play” in the quick-release handle may necessitate an adjustment to the “play” between the collar
and the wheel hub. See “Adjusting the Play” on pages 9-2 and 9-3.
5. With the quick-release handle in the unlocked position, reinstall the rear wheel on the chair.
6. Before riding in the chair, make sure the locking balls have fully secured the wheel in the axle sleeve by pulling
on the hub with the release handle in the locked position. If the locking balls do not fully engage, repeat these
procedures to increase the “play” (i.e., increase the distance between the quick-release nut and the locking balls),
to permit the locking balls to fully engage properly. Also, check to make sure there is not too much “play” in the
axle. See “Adjusting the Play” on pages 9-2 and 9-3.
Figure 9-2
Quad Quick-Release Axle Adjustment
Collar
Axle Sleeve
Locking Balls
Set Screw 1
Quick-Release Handle
(Unlocked Position)
Axle
Hub
Set Screw 2
Set Screw 3
Quick-Release Handle
(Locked Position)
Quick-Release Nut
I
WARNING
The threads on the set screws on the Quad Quick-Release Axles Assemblies are treated with Loctite
®
242
®
, a
medium strength thread lock. If you loosen any set screw, you MUST remove and reapply Loctite
®
242
®
or an
equivalent medium strength thread lock.
If you ignore this Warning, your rear wheel could become loose or fall off
and you could fall, tip over or lose control of the wheelchair and seriously injure yourself or others or damage the
wheelchair.
Adjusting the “Play”
I
WARNING
Quick-Release Axles are pre-adjusted to permit minimal “play” in the axle. TiLite recommends that you do not adjust
the axle. Improperly adjusting the axle could cause it to malfunction—too much “play” can cause the axle to bend
and become stuck in the axle sleeve; too little “play” can prevent the locking balls from engaging fully, causing the
wheel to disengage from the chair without warning. TiLite recommends that an authorized TiLite dealer make any
adjustments.
If you ignore this Warning, you may fall, tip over or lose control of the wheelchair and seriously injure
yourself or others or damage the wheelchair.
If there is too much “play” in the axle so the wheel is loose when locked into position in the axle sleeve or too little
“play” so the locking balls do not properly engage, follow this procedure:
Tools Needed:
• 5/64” Allen Wrench