1 reply to this topic

[Josh D._1985]

I recently purchased a Tilite Zra. I ordered the chair with 2° of camber. I noticed when I was pushing up on my tires to lift my butt for pressure relief, ever so often my chair would make a popping sound. Eventually I noticed my wheels had no camber. I took it to a local shop and they informed me the camber tube had turned.

Is this a common problem? I only weigh about 150 pounds, so it's not like I'm putting extreme pressure when pushing on them. I also have D's locks on my chair. Could this add to the problem?

Thanks in advance,
Josh

[jp2417]

Josh,
If I am right, the camber tube on the ZRA is held by quite a thin clamp on the rear of the adjustable height bracket. It does not offer much of a clamping load due to minimal clamping area.
Concerning your D's locks, is the locking pin fixed to the height adjustable bracket or fixed to the end of the axle tube? If it is fixed to the axle tube, this will be the problem as when you apply the brakes and shift in your chair the rear wheels are moving and spinning the whole axle assembly.
If you want to send me a picture to enquiries@sport-mobility.co.uk we will tell you exactly where your problem lays. We have an engineering background and are used to apply engineering solutions to wheelchair issues.
Regards,
Paul
www.sport-mobility.co.uk