Here is a list of all the postings Jason has made in our forums. Click on a thread name to jump to the thread.
Thread: Dewhurst reversing switch |
30/06/2023 21:55:44 |
Good evening, Thank you for the reply and the information, I have followed it as you outlined. Yes the power was correctly wired to the left bank of the switch, live 1 neutral 3. The motor runs in forward rotation but when stopped and reverse selected and powered up, click! So a bit of progress however still an issue as tripped upon reverse selection. Earth of course a no brainer, you can see the 5 core armoured cable leading to the motor, the supply to the Dewhurst is 3 core armoured cable from a NVR switch. The terminal box is fixed through the motor case into the void ahead of the field windings, 2 flush cut m5 bolts in half nuts protruding approx 4mm into the case about 15mm from the windings themselves. |
30/06/2023 21:46:03 |
30/06/2023 09:17:50 |
30/06/2023 09:17:21 |
Good morning Les, thank you for the reply. I have a few more on my phone I have uploaded and hopefully the 2 more relevant ones to show the motor before the 4 wires were taken outside. |
29/06/2023 22:27:29 |
Apologies big thumbs a constant problem on a mobile phone! Any advice gratefully received, thank you |
29/06/2023 22:25:20 |
Hello all,
Finally have a moment to post a head scratcher I'm having just now. The motor that came with my lathe would run, i tested it on the bench, but using my spider senses it had that gut wrenching hot motor smell. I used my FLIR camera and found after around a minute it was in excess of 120°c!! So with that pronounced dead at the scene, I bought another. I took the 4 post terminal from the old one and set about bringing 4 wires out of the replacement as per the original motor. You can guess where I'm going. I've seen the period schematic publications and after applying that to the motor it just trips the garage. There is a reset on it which hasn't need to be reset any time I've tried. I did run the replacement motor before hand and it was spot on, it was sold as old stock with new bearings fitted at overhaul. Some what out of my grasp at this stage of the week, I expect this is covered regularly and to more capable minds I'm sure the following images will be useful.
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Thread: A Highland Hello |
06/06/2023 09:59:05 |
Thanks for the welcome and offers of help, I'll post again in the help section a few issues I'm having. Will need to double check when I get home, nothing more tedious than a poorly explained problem! |
04/06/2023 22:01:13 |
Hello everyone, I have been a bit of a moocher around this forum for a long time, I have finally decided to get involved in a little more than observation. Over the past few years I have been amassing tooling, tools stock etc with the idea of finally getting "that workshop" built. Always toying with the idea of live steam and posess several second hand Minnie's in various states of existence, a good starting point I say. Life it would seem would like to keep me waiting for the ideal set up, but with a modest single garage and a few quite evenings a week it is a step in the right direction and a start at least. I'm currently working on my smart and brown sabel lathe. Working on it how you may ask? Well, during storage and several house moves, it has picked up a few bumps and was a bit of a state when I first picked it up, more on that later. So I'm on with a replacement motor, I'll post pictures and questions about that and ask the hive mind for some help. Thanks for having me I hope if nothing else a virtual cuppa in the shed online may now be a two way conversation. Cheers, Jason
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