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27th January 2022, 05:55 PM #1Senior Member
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Removing nvr switch from dust extraction
Hi all, I have a 2hp carbatec dusty, it is annoying me to have to keep reaching over the machinery to turn it on everything, do I thought I would remove the nvr and put a toggle switch in. Dave Stanton had a very simple YouTube video on it.
When I opened it up, mine looked a bit different to Dave's and carbatec didn't gave the toggle switch in stock when I went in so I picked up a plain push button switch. Could someone please give me some basic guidance on rewiring it? Have photos if I can figure out how to upload them...
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27th January 2022 05:55 PM # ADSGoogle Adsense Advertisement
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27th January 2022, 06:05 PM #2Senior Member
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- Bne
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This is what I do and only what works for me but I used a small bit of timber over the on button and a zip tie. I cant be stuffed bending down all the time so I turn mine on at the wall switch.
Please don't take this as in any way a recommended way of working, just what I do.
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27th January 2022, 07:31 PM #3.
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tomartomau's suggestion is practical one as long as you realize that if the main power goes off and you have your hand up the inlet and the power comes back on it will literally "rip your arm off'.
A kosher OHS method would be to move the switch to a suitable height stand bolted to the base of the DC.
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27th January 2022, 07:45 PM #4GOLD MEMBER
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27th January 2022, 08:14 PM #5China
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Mine is hardwired to a wall switch (3ph ) the day I find it too hard to walk over an turn it off it will be time to give it away altogether just have it to a dedicated switch some where so you don't have climb over your machines
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27th January 2022, 08:26 PM #6Senior Member
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my plan is to put the switch in so that it can be set into an 'on' position - then i will use a remote control plug in socket to switch it on and off if i am away from the device - should be relatively simple and will stop me from having to climb through the dusty to turn it on every time (hence it not getting turned on for those 'quick jobs')
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27th January 2022, 09:19 PM #7GOLD MEMBER
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I must bridged mine inside the switch across with a wire so it’s always on, and then have a power point on the saw that is energised when the saw is started, and plug it into that.
well, I did, but poundy does it now, he took that saw away.
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27th January 2022, 10:46 PM #8Senior Member
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I want it on when lathe or saw is on, but I like your thinking!!!
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27th January 2022, 11:26 PM #9.
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DCs - especially smaller ones should be left on for some time after any dust making activity.
The smaller the DC the longer it should be left on afterwards, so hooking the DC up to when machines start/stop is not ideal.
The other thing is if you have a 3HP machine and a 3HP or even 2HP DC running both through the machines GPO is far from kosher.
For 3HP machines and DCs they really need to be on their own 15A circuits.
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28th January 2022, 05:46 AM #10Senior Member
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And the combined starting loads of both a large dust extractor and something like a thicknesser are pretty much guaranteed to trip the average circuit breaker anyway. Start one machine and let it come up to speed, then start the next machine and let it come up to speed, then start feeding timber, otherwise it will probably be a walk to the fuse box or breaker panel. And fitting a higher current breaker or fuse to overcome the problem isn't really the best of ideas, it just moves the problem somewhere else.
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28th January 2022, 09:06 AM #11.
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It's not just the start up currents. A 3HP table saw has a nominal operating current of ~9A but that's for when its under a moderate load. Under a heaviest load it might draw as much as 12A and I have even had mine up to 17A when ripping a 4" thick piece of hardwood and just pushing it too hard. If on top of that you have a 2HP DC connected this will be well and truly over the breaker limit. A 3HP DC will be even worse.
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4th February 2022, 04:58 PM #12wood butcher
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I've replaced the magnetic switch with a simple on/off outdoor rated switch and also use the remote controlled GPO plugin outlet to turn my 2hp dusty on from the convenience of anywhere in the workshop as my dusty is housed in a separate cupboard with an exhaust fan venting to the outside.
It works a treat so far for the last 5-7 yrs. I spin up the dusty first as it takes longer than the TS or sander etc and turn it off last.
Cheers
Bryan
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