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<img src="http://www.pro-jump.co.uk/PJF09/PJF-tutotials.jpg" alt="Pro-Jump Forum Tutorials - Learn something new today!" border="0" height="200" width="200"></td>
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<td align="left" valign="top" width="79%"><span id="h1">Bearing/Bushing Mod</span><br>
<span id="h2">By Gillybert</span>
<p>Before you start, this is a bit long but I hope not boring.<br>
<br>
My first PJs had brass bearings & my newest have plastic bearings. Both show signs of wear, which through general use is fine. My problem is my job, I design drive and instruments for turbomachinery, so I never leave mechanical things I get, as standard. There's always room for improvement.<br>
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Discussion thread can be found <a href="http://www.projumpforum.co.uk/index.php?topic=1226.0" target="_blank" id="link">here </a></p></td>
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<td colspan="3"><p>I have read through lots of threads on these bearings, there's load of good info and <a href="http://www.projumpforum.co.uk/index.php?topic=826.0" id="link">Jason's full revamp</a> is superb. However, I would like to replace what I can with real ball/roller bearings.<br>
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One rule I'm setting myself is not to modify the PJ frame work, which will make my mods undoable (don't know if thats a real word), back to original bearings. I'm starting with the bearing directly under the footplate as it is the most accessable.</p>
<p>This is my proposed new arrangement (3D modelled in Autocad Mechanical Desktop).<br>
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<td><p>The parts have been made and fitted to only 1 PJ for comparison. Makes the framework much stiffer and the joint is silent and slippy.</p></td>
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<td><p><span id="h3">Detail drawings</span></p></td>
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<td width="350"><div align="center"><a href="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/pj10001tm0.jpg" target="_new"><img src="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/pj10001tm0-thumb.jpg" style="border-color: black;" border="2" height="215" width="300"></a></div></td>
<td width="350"><div align="center"><a href="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10004ue3.jpg" target="_new"><img src="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10004ue3-thumb.jpg" style="border-color: black;" border="2" height="215" width="300"></a></div></td>
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<a href="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10003gw8.jpg" target="_new"><br><img src="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10003gw8-thumb.jpg" style="border-color: black;" border="2" height="215" width="300"></a></div></td>
<td><div align="center"><a href="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10001fk0.jpg" targer="_new"><br><img src="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10001fk0-thumb.jpg" style="border-color: black;" border="2" height="215" width="300"></a></div></td>
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<td colspan="2"><div align="center"><a href="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10002cc6.jpg" target="_new"><br>
<img src="http://www.projumpforum.co.uk/bocking-tutorials/Gillybert-Real-Bearings/gb10002cc6-thumb.jpg" style="border-color: black;" border="2" height="215" width="300"></a></div></td>
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<td><p>Bocked about 6 hours so far on this joint, and its still fine, but only time will tell the real story. I'll keep this thread updated with results and further work.</p></td>
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<br> <span id="h2">* Disclaimer </span>
<span id="h4"><br>
Any modifications, setting up guides, advise and tutorials found on the Pro-Jump Forum should only be followed at your own risk. Pro-Jump / UK Good Deals Ltd will not be held responsible for any injury, loss or damage of any nature. Some modifications provided on the forum may also invalidate your jumping stilts warranty so please check the terms and conditions on the Pro-Jump.co.uk site or the site where your jumping stilts were purchased from. <br>
<br>
By following any of the advise set out on the Pro-Jump Forum you are exonerating the company (Pro-Jump / UK Good Deals) its employees, agents, members and the advise / tutorial poster from all liability which may arise in respect of personal injury (fatal or otherwise) or damage to your equipment which may occur by following the advise given. You undertake to make no claim against the company (Pro-Jump / UK Good Deals ltd) its employees, agents, members and the advise / tutorial poster notwithstanding that such injury was caused or occasioned directly or indirectly by the act of neglect ,or default of the company (Pro-Jump / UK Good Deals) its employees, agents, members and the advise / tutorial poster. </span></td>
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