11-4
TR/YR Owners Manual
OM_TR_0712RevC
CHAPTER 11: CASTERS, FORKS AND CASTER PIN LOCKS
4. Loosen, but do not remove, the Allen screws in the footrest clamps as shown in Figure 11-7.
Note:
Figure 11-7 depicts the footrest clamps on the TR and YR Series 2. If you have the TR Series 3, locate
the corresponding screw that secures the footrest assembly to the frame.
5. Make sure your footrest is set to your desired seat-to-footrest measurement, and, using a ruler, make sure the left
and right sides of the footrest are the same distance to the level surface.
6. If the above adjustments correct the floater, securely tighten all Allen screws loosened in Steps 3 and 4. If not,
proceed to Steps 7 through 9.
7. While applying gentle downward pressure on the top of the floating caster housing, securely tighten the Allen
screw in the footrest clamp on that side of the chair.
8. Securely tighten all Allen screws on the camber tube clamps, starting with the screws that secure the camber tube
to the camber tube clamp (do not start with the screws that secure the clamp to the frame).
9. Check to make sure all of the wheels are flat on your level surface and that neither caster is “floating.” If all
wheels are flat and you have no floaters, securely tighten the remaining screws. If you still have a floating caster,
proceed to Steps 10 through 13.
10. Loosen, but do not remove, the Allen screw on the footrest clamp only on the side of the chair with the floating
caster.
11. Place a wood block under the other caster wheel (which is not floating) as shown in Figure 11-8.
12. Apply gentle downward pressure on the caster wheel that is floating. It is advisable that you have an assistant to
place downward pressure on the opposite side of the chair at the backrest when making this adjustment.
13. Remove the wood block and check to see if the caster still floats. If the caster no longer floats, securely tighten
the Allen screw on the footrest clamp. If the caster still floats, or if the other caster starts to float, repeat Steps 10
through 13 until the caster no longer floats.
Figure 11-6
Allen Screws on Camber Clamp
Allen
Screws
Camber Tube
Figure 11-7
Allen Screws on Footrest Clamp
Allen
Screws
Apply
Pressure
Here
Wood
Block
Figure 11-8
Fixing a Floating Caster
Frog Legs
®
I
WARNING
Always mount identical size casters and forks on both sides of your chair.
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.
Replacing Casters
Tools Needed:
• Two #2 Phillips Head Screw Drivers
1. Remove the Allen screw, washer, C spring washer, and axle that secure the caster to the fork. Use one screw
driver to hold the axle in place and a second screw driver to loosen the other screw. See Figure 11-10.
2. Remove the caster and spacers from the fork.
3. Install the new caster, spacers, washer and C spring washer onto the fork and securely tighten the two screws
so there is no space between the caster, the spacers and the fork sides. Use one screw driver to hold the axle in
place and securely tighten the other screw with the second screw driver.
Note:
If your chair has 4” or 5” TiLite performance casters, make sure that Spacer 2 (which is wider than Spacer 1) is
positioned on the recessed side of the caster, which should be oriented outwards when the casters are in the trailing
position.
