8-5
TR/YR Owners Manual
OM_TR_0712RevC
CHAPTER 8: AXLE PLATES AND CAMBER PLUGS
(CENTER OF GRAVITY; REAR SEAT HEIGHT)
I
WARNING
The threads on the Hex bolts that secure the Frog Legs
®
Suspension to the frame are treated with Loctite
®
242
®
,
a medium strength thread lock. If you loosen any Hex bolt, you MUST remove and reapply Loctite
®
242
®
or an
equivalent medium strength thread lock.
If you ignore this Warning, your Frog Legs
®
Suspension 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.
Replacing the Camber Tube
Tools Needed:
• 5/32” Allen Wrench
1. Remove the rear wheels.
2. Loosen but do not remove the Allen screw that secures the camber tube to each Frog Legs
®
Suspension. See
Figure 8-7.
3. Remove the camber tube.
Note:
If your camber is 12°, 15° or 18°, you will need to remove the axle sleeve to allow the camber tube to slide
out of the clamp or mount, see “Adjusting Rear Wheel Spacing” on page 12-3.
4. Install the new camber tube, making sure the distance from the outside edge of the Frog Legs
®
Suspension to the
end of the camber tube is identical on both sides of the chair.
5. Make sure that the camber plug flats are perpendicular to the ground and that the camber is oriented properly
(wheel base wider at the bottom than the top).
6. Securely tighten both Allen screws.
7. Reinstall the rear wheels.
8. Check the toe-in/toe-out and adjust as needed.
Adjusting Toe-In/Toe-Out
Tools Needed:
• 3/16” Allen Wrench
• 7/8” Open End Wrench
• Ruler or Tape Measure
Note:
Adjusting toe-in/toe-out does not apply to chairs with 0º camber; however, it is still necessary to make sure that
the camber plug flats are perpendicular to the ground and the axle sleeve is located at the uppermost part of the plug..
1. Make sure the distance from the end of the camber tube to the camber clamp is identical on both sides of the
chair. See Figure 8-8.
2. Make sure the rear wheels are properly inflated.
3. Place the chair on all four wheels with the casters trailing toward the rear of the frame. See Figure 8-9.
Camber Clamp
Camber Tube
Figure 8-8
Adjusting the Toe-In/Toe-Out
Measurement A
Figure 8-9
Adjusting the Toe-In/Toe-Out