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Electrical question

 
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glipaz



Joined: 11 Jan 2011
Posts: 85

PostPosted: Mon May 13, 2019 9:17 pm    Post subject: Electrical question Reply with quote

I have an electrical question and would appreciate your advice.
I have a Nanchang with 4 unused switches on the standard lower/horizontal switch panel. On the left vertical side panel, I have three other switches including a switch for the alternator, a switch for the landing light and a switch for nav and strobe lights. Is there any reason why these can't be rewired to use the unused switches below? For example, can the alternator be wired to the old generator switch? Can the light switches be rewired to use the other remaining unused switches? I'm wondering if the amperage rating is wrong and that is why they are on a separate panel.


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k7wx



Joined: 24 May 2010
Posts: 112

PostPosted: Tue May 14, 2019 1:45 am    Post subject: Electrical question Reply with quote

Gill,

The unused switches can certainly be used for other applications. I have one assigned the task of turning off and on an electric boost pump and another is used for my strobes. I believe that these switches also have a built-in circuit breaker. Was told that this is approximately 20 amps, but have not confirmed this. It would be prudent to add an appropriate circuit breaker for each application that the switch controls.

Warren Hill
N464TW
Mesa, AZ
Quote:
On May 13, 2019, at 10:17 PM, glipaz <glipaz(at)yahoo.com> wrote:



I have an electrical question and would appreciate your advice.
I have a Nanchang with 4 unused switches on the standard lower/horizontal switch panel. On the left vertical side panel, I have three other switches including a switch for the alternator, a switch for the landing light and a switch for nav and strobe lights. Is there any reason why these can't be rewired to use the unused switches below? For example, can the alternator be wired to the old generator switch? Can the light switches be rewired to use the other remaining unused switches? I'm wondering if the amperage rating is wrong and that is why they are on a separate panel.




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draftsjust417(at)gmail.co
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PostPosted: Tue May 14, 2019 4:27 am    Post subject: Electrical question Reply with quote

One very simple suggestion I would throw in from my past frustrations/experiences, having refurbed much of my CJ6's wiring: label label label!It's very helpful to add small identifying labels to each wire and wire bundle for future reference, especially if it deviates from the standard PLAAF wire diagrams.
Future mechanics and avionics techs will surely thank you!
Justin
N280NC
Seattle WA
On Tue, May 14, 2019 at 2:19 PM Warren Hill <k7wx(at)earthlink.net (k7wx(at)earthlink.net)> wrote:

Quote:
--> Yak-List message posted by: Warren Hill <k7wx(at)earthlink.net (k7wx(at)earthlink.net)>

Gill,

The unused switches can certainly be used for other applications. I have one assigned the task of turning off and on an electric boost pump and another is used for my strobes. I believe that these switches also have a built-in circuit breaker. Was told that this is approximately 20 amps, but have not confirmed this. It would be prudent to add an appropriate circuit breaker for each application that the switch controls.

Warren Hill
N464TW
Mesa, AZ


> On May 13, 2019, at 10:17 PM, glipaz <glipaz(at)yahoo.com (glipaz(at)yahoo.com)> wrote:
>
> --> Yak-List message posted by: "glipaz" <glipaz(at)yahoo.com (glipaz(at)yahoo.com)>
>
> I have an electrical question and would appreciate your advice.
> I have a Nanchang with 4 unused switches on the standard lower/horizontal switch panel.  On the left vertical side panel, I have three other switches including a switch for the alternator, a switch for the landing light and a switch for nav and strobe lights.  Is there any reason why these can't be rewired to use the unused switches below?   For example, can the alternator be wired to the old generator switch?  Can the light switches be rewired to use the other remaining unused switches?  I'm wondering if the amperage rating is wrong and that is why they are on a separate panel.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=489208#489208
>
>
>
>
>
>
>
>
>


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dougsappllc(at)gmail.com
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PostPosted: Tue May 14, 2019 9:58 am    Post subject: Electrical question Reply with quote

Gil / Warren,These ZKC switch breakers come in various amperage, 2, 5, 10, 20, and 40. 
Care must be taken to make sure the proper breaker amperage matches the equipment being installed.
Doug

On Tue, May 14, 2019 at 2:49 AM Warren Hill <k7wx(at)earthlink.net (k7wx(at)earthlink.net)> wrote:

Quote:
--> Yak-List message posted by: Warren Hill <k7wx(at)earthlink.net (k7wx(at)earthlink.net)>

Gill,

The unused switches can certainly be used for other applications. I have one assigned the task of turning off and on an electric boost pump and another is used for my strobes. I believe that these switches also have a built-in circuit breaker. Was told that this is approximately 20 amps, but have not confirmed this. It would be prudent to add an appropriate circuit breaker for each application that the switch controls.

Warren Hill
N464TW
Mesa, AZ


> On May 13, 2019, at 10:17 PM, glipaz <glipaz(at)yahoo.com (glipaz(at)yahoo.com)> wrote:
>
> --> Yak-List message posted by: "glipaz" <glipaz(at)yahoo.com (glipaz(at)yahoo.com)>
>
> I have an electrical question and would appreciate your advice.
> I have a Nanchang with 4 unused switches on the standard lower/horizontal switch panel.  On the left vertical side panel, I have three other switches including a switch for the alternator, a switch for the landing light and a switch for nav and strobe lights.  Is there any reason why these can't be rewired to use the unused switches below?   For example, can the alternator be wired to the old generator switch?  Can the light switches be rewired to use the other remaining unused switches?  I'm wondering if the amperage rating is wrong and that is why they are on a separate panel.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=489208#489208
>
>
>
>
>
>
>
>
>


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ed.kettler



Joined: 27 Oct 2018
Posts: 16
Location: Fort Worth TX

PostPosted: Fri May 17, 2019 7:03 pm    Post subject: Re: Electrical question Reply with quote

In the Downloads section on CJ6.com, there are two electrical system files, one is a table, the other is a schematic. They are numbered pages 16 and 18. Based on the table, it appears that the missing page 17 is also a schematic. Does anybody have a page 17 they can share for the group?

Second question, is the main gyro switch sending out 28vdc to the inverter, or is it the 400hz AC power?

Thanks
Ed


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wlannon(at)shaw.ca
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PostPosted: Sat May 18, 2019 10:06 am    Post subject: Electrical question Reply with quote

Hi Ed;

Second question first - Yes, 27.5 VDC from the bus via switch #9 on the main
elec. panel.

First question ?? - ask Doug Sapp

Walt

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dsavarese0812(at)bellsout
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PostPosted: Sat May 18, 2019 12:16 pm    Post subject: Electrical question Reply with quote

Inverter - 28 volts DC input, 36 volts AC 400 HZ output. The "main" gyro as you called it, operates on 36 volts AC, 400 Hz.
Dennis


On Friday, May 17, 2019, 11:06:36 PM EDT, ed.kettler <ed.kettler(at)gmail.com> wrote:




--> Yak-List message posted by: "ed.kettler" <ed.kettler(at)gmail.com (ed.kettler(at)gmail.com)>

In the Downloads section on CJ6.com, there are two electrical system files, one is a table, the other is a schematic. They are numbered pages 16 and 18. Based on the table, it appears that the missing page 17 is also a schematic. Does anybody have a page 17 they can share for the group?

Second question, is the main gyro switch sending out 28vdc to the inverter, or is it the 400hz AC power?

Thanks

Ed

--------

Ed Kettler

N53HM

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ed.kettler



Joined: 27 Oct 2018
Posts: 16
Location: Fort Worth TX

PostPosted: Sat May 18, 2019 2:13 pm    Post subject: Re: Electrical question Reply with quote

wlannon(at)shaw.ca wrote:
Hi Ed;
First question ?? - ask Doug Sapp

Walt

--


I did Very Happy

He got the other two from George McCoy, who doesn't have the other page

Hoping somebody out there has the manual

Ed


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GeorgeCoy



Joined: 02 Dec 2010
Posts: 277

PostPosted: Sat May 18, 2019 5:28 pm    Post subject: Electrical question Reply with quote

Oops, that is Coy, not McCoy

Sent from my iPhone

Quote:
On May 18, 2019, at 6:13 PM, ed.kettler <ed.kettler(at)gmail.com> wrote:




wlannon(at)shaw.ca wrote:
> Hi Ed;
>
>
> First question ?? - ask Doug Sapp
>
> Walt
>
> --


I did Very Happy

He got the other two from George McCoy, who doesn't have the other page

Hoping somebody out there has the manual

Ed

--------
Ed Kettler
N53HM




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glipaz



Joined: 11 Jan 2011
Posts: 85

PostPosted: Thu May 30, 2019 7:47 am    Post subject: Re: Electrical question Reply with quote

Here’s something interesting: While the book shows that there are 14 switches on the CJ lower panel, my 1965 CJ has 15 switches. My previous CJ and all the others I see only have 14.

Next question: when my CJ had an alternator installed (m-14p), a new switch was added to the side panel to turn it on and off rather than using the switch that used to control the generator (lower panel sw 2 is now not used). Any reason for that?


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