<div dir="ltr">James, you mentioned that one of the two wires is getting hotter than normal and the first thing that came to mind was that it didn't have a solid connection somewhere? That may not explain the abnormal noise you said it is making but a bad connection will heat up a wire.<div>Rick</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jul 19, 2021 at 11:37 PM James Frankland via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Thanks Emile. <div><br></div><div>This motor is definitly not right compared to the other two. Im going to try Cliffs idea of adjusting the alignment. Seems to be the only thing i can try, other than a new motor or air comp.</div><div><br></div><div>regards</div><div>James</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 20 Jul 2021 at 08:44, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div lang="NL"><div><p class="MsoNormal"><span>All,<u></u><u></u></span></p><p class="MsoNormal"><span><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB">It is normal that a brushed oil filled motor runs not well in air. The brushes will float on the oil due to the higher RPM.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB">Emile<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm"><p class="MsoNormal"><b>Van:</b> Personal_Submersibles <<a href="mailto:personal_submersibles-bounces@psubs.org" target="_blank">personal_submersibles-bounces@psubs.org</a>> <b>Namens </b>James Frankland via Personal_Submersibles<br><b>Verzonden:</b> maandag 19 juli 2021 13:22<br><b>Aan:</b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br><b>Onderwerp:</b> [PSUBS-MAILIST] Motor Issue<u></u><u></u></p></div><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">Hi All<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Does anyone have any ideas on this?<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Following the dive i did last week, i had a motor issue. The motor did not actually stop or fail, but during the dives it just didnt feel right.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">The positive wire going into the rotating penetrator would get hot after about 10 seconds of motor power. I could also hear a kind of electrical noise from within somewhere.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">So, the next day i took the motor apart. The oil (Silicone oil) was VERY black.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">I was expecting to see something had been rubbing, but i couldnt see anything. It all looked fine. <u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">I put it all back together and it runs fine in air. However, there does seem to be a louder motor running noise than the others.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">I am unsure what the issue is. My feeling is that its carbon in the oil, making it conducting and hence slightly shorting out, causing the heat on the cable.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">The other motor cable did not get hot, nor did the oil go black.<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Again, another video here. <a href="https://www.youtube.com/watch?v=v_VxVfhM9t8&t=2s" target="_blank">https://www.youtube.com/watch?v=v_VxVfhM9t8&t=2s</a><u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Would appreciate any input. Im not sure what to do. Buy a new motor? Air compensate it?<u></u><u></u></p></div><div><p class="MsoNormal"><br>Many thanks<br>James<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div>_______________________________________________<br>
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