Step 7: Testing

Well, now that everything is soldered in place, you want to run this beast a few minutes to see if anything burns out... make sure that you run it in both directions.
On my setup, I have to power it off before reversing polarity, since there is no off position on my reversing switch. My one and only attempt to do a live reversal only concluded in the motor stopping, and there is the possibility that this procedure could hurt something in the circuit if executed repeatedly. Your mileage may vary.


You can enjoy the fact that the shredding blades are all exposed, so BE CAUTIOUS, don't put anything in there, or near there, or attached to something you might regret going in there!!!  
<p>Your article and photos were Very Good. <br>...YET.... ALL I wanted was to replace the fuse and see if it took care of the problem.<br>I have just spent 2 1/2 days to reach the PC board. By then I had drilled more holes than someone searching for oil. <br>I could not get the screws out even with a new 9&quot; #1 or #2 Phillips. (I cut the handle back to allow an extra inch).<br>Finally I cut off the bottom of the unit just below the &quot;works&quot; by hacksaw with fine tooth blade.<br> I still could not free the internal works. SO... I hacksaw each corner of the remaining top cover piece and broke the outside cover off to access the unit and PC board. In all my 80 years, I was worn out and frustrated. <br> I ordered a different shredder online from Walmart for $20 bucks and 2 year warrantee. <br> The Mailmate parts are NOW where it belongs, and I do no more shopping at Staples!<br>Note... Any appliance that is protected by a &quot;fuse&quot;, should be easily accessible for replacement!</p>
<p style="margin-left: 20.0px;">Nicely documented for something that was not supposed to end up as an Instructable... </p><p style="margin-left: 20.0px;">BTW, reversible AC motors do exist, but I suspect the circuit inside would be different. Either you have a variable-frequency drive to use your single phase &quot;home current&quot; to power a nice 3-phases motor or you have a AC motor that was built with a switch/contact/jumper making it possible to change how the electricity is flowing through the windings. No as simple as reversing a DC motor though!</p><p style="margin-left: 20.0px;">If you can reverse an AC motor, usually it is written on it.</p>
Yeah a three phase motor is easy to reverse if you have a drive controller. I can't remember if we saw how to revers a single phase AC motor in my motor course though... But anyway, that was the least cost since I only needed to buy the rectifier bridge

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