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Correcting Potential Stabilizer Bar Problem on First Batch from PT Dharma

In August 2011, a potential problem was identified with the stabilizer bar of the PT Dharma RoughRider. This bar, located under the seat, helps keep wheels parallel when the chair is folded, although it does not affect safety or comfort. The issue arises from a welded bolt that can increase stress on the stabilizer tab, which may lead to a break between the frame and the tab. While failures are rare and not dangerous, they can be inconvenient. The recommended fix involves completely removing the stabilizer bar and using a bungee cord to hold the chair closed.

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Correcting Potential Stabilizer Bar Problem on First Batch from PT Dharma

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  1. Correcting Potential Stabilizer Bar Problem on First Batch from PT Dharma August, 2011

  2. Stabilizer Bar and Tab • The stabilizer bar and tab are under the seat. • They provide a convenience benefit of keeping the wheels parallel when the chair is folded • Does not contribute to safety or comfort • Without it, the RoughRider is fully functional • with without

  3. Stabilizer Bar The potential problem: • The bolt (in photo) is welded to the bar • Increases force on stabilizer tab

  4. Stabilizer Bar The potential problem: • The bolt is welded to the bar and this increases force on stabilizer tab • This can cause the weld between the frame and the Stabilizer Tab to break. • It is unknown how often this will occur but has only been observed once • The failure is not dangerous, just inconvenient

  5. The Solution How to Easily Fix Stabilizer Bar Removed • Remove the stabilizer bar completely from the frame using the included 17mm wrench • Use a bungee cord to hold the chair handles together when folded

  6. The Solution How to Easily Fix Bungee In Use • Remove stabilizer bar • Use a bungee cord to hold the chair together at the pushing bar

  7. Proposed Solution Each user will be given: After • A printed description of the potential malfunction in Españoland how to correct for it. • Small bungee cord

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