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Ground Start enunciator light (Addendum)

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nuckolls.bob(at)cox.net
Guest

Posted: Sun Mar 16, 2008 6:05 pm Post subject: Ground Start enunciator light (Addendum)

At 01:53 AM 3/16/2008 +0000, you wrote:



 	  Quote: 	
		  

<trigo(at)mail.telepac.pt>



Listers



I installed a Piper-type male socket to my airplane, to have the possibility

of a ground start in case of a low battery cranking difficulty.

As recommended by this List experts, I connected the socket to the battery

through a continuous duty contactor (aka Master Relay or Battery solenoid),

the S701-1 from B&C, controlled by a SPST switch, which grounds the

contactor when thrown to ON.



Now what I want to do is to put a green enunciator light in my panel, which

illuminates when that switch is ON and the contactor is closed to allow the

ground start procedure, to remind me to switch it Off after finishing that

procedure.



I have tried some wiring of the warning light to the switch, but I cannot

make it work properly. Can somebody please enlighten me how to wire it?


	




Carlos,



   A couple of hours after I replied to this it occurred to me that

   you probably were not incorporating a press-to-test light fixture

   nor did you mention crowbar ov protection. I've updated the

   schematics in the article to include "Ground Power Lite" without

   OV protection and using a plain vanilla lamp fixture. See the

   last page of:



http://www.aeroelectric.com/articles/grndpwr.pdf



   Is this more like what you needed?



        Bob . . .



        ----------------------------------------)

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

        ----------------------------------------

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willslau(at)comcast.net
Guest

Posted: Sun Mar 16, 2008 6:49 pm Post subject: Ground Start enunciator light (Addendum)

On a related note:

The instructions for modifying the receptacle call for a propane torch or

"large soldering iron". How large an iron? I ask because I incinerated the

phenolic insulator when I tried to solder it with my propane torch, and have

just ordered a replacement receptacle to try again. If I preheat the bolt in

the oven, would a Weller 100/140 soldering gun have enough oomph? If not,

????.



William Slaughter



--

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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trigo(at)mail.telepac.pt
Guest

Posted: Mon Mar 17, 2008 2:12 am Post subject: Ground Start enunciator light (Addendum)

[quote] --

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

nuckolls.bob(at)cox.net
Guest

Posted: Mon Mar 17, 2008 9:44 am Post subject: Ground Start enunciator light (Addendum)

At 01:53 AM 3/16/2008 +0000, you wrote:



 	  Quote: 	
		  

<trigo(at)mail.telepac.pt>



Listers



I installed a Piper-type male socket to my airplane, to have the possibility

of a ground start in case of a low battery cranking difficulty.

As recommended by this List experts, I connected the socket to the battery

through a continuous duty contactor (aka Master Relay or Battery solenoid),

the S701-1 from B&C, controlled by a SPST switch, which grounds the

contactor when thrown to ON.



Now what I want to do is to put a green enunciator light in my panel, which

illuminates when that switch is ON and the contactor is closed to allow the

ground start procedure, to remind me to switch it Off after finishing that

procedure.



I have tried some wiring of the warning light to the switch, but I cannot

make it work properly. Can somebody please enlighten me how to wire it?


	




Carlos,



   A couple of hours after I replied to this it occurred to me that

   you probably were not incorporating a press-to-test light fixture

   nor did you mention crowbar ov protection. I've updated the

   schematics in the article to include "Ground Power Lite" without

   OV protection and using a plain vanilla lamp fixture. See the

   last page of:



http://www.aeroelectric.com/articles/grndpwr.pdf



   Is this more like what you needed?



        Bob . . .



        ----------------------------------------)

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

        ----------------------------------------

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

nuckolls.bob(at)cox.net
Guest

Posted: Mon Mar 17, 2008 1:37 pm Post subject: Ground Start enunciator light (Addendum)

At 09:44 PM 3/16/2008 -0500, you wrote:



 	  Quote: 	
		  

<willslau(at)comcast.net>



On a related note:

The instructions for modifying the receptacle call for a propane torch or

"large soldering iron". How large an iron? I ask because I incinerated the

phenolic insulator when I tried to solder it with my propane torch, and have

just ordered a replacement receptacle to try again. If I preheat the bolt in

the oven, would a Weller 100/140 soldering gun have enough oomph? If not,

????.


	


   No. Go to Home Depot or Lowes and see if you can find a

   Bernzomatic ST100T micro torch. This is my all time favorite

   although I don't find it described on the Bernszomatic website.

   It may be discontinued. In any case, you need a micro-torch not

   unlike those shown at:



http://www.aeroelectric.com/Pictures/Tools/Soldering/Gas_Tools/



   Harbor Freight has some butane micro-torches as do many

   hardware stores. I think Walmart stocks one too. Ace Hardware

   stores have:



http://tinyurl.com/2tgatp

   Also, use 63/37 alloy solder. This stuff melts at 361F and

   flows nicely below 400. There's a rubber-bumper on the

   end of the receptacle center-pin. Pull this off for soldering

   operations and replace it after the pin cools.



   Bob . . .

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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