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keithmckinley
Joined: 11 Aug 2008
Posts: 434
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 Posted: Tue Jan 12, 2010 4:40 pm Post subject: crimping with a dmc af8 crimping tool |
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I have the tool and a m22520/1-02 head.
Just looking for the proper method of inserting the pin to be crimped as well as what a good test for the quality of the crimp should be.
I do not have a g-125 gage to calibrate with. Also, do not have more than a couple pins to practice with.
Thank you,
Keith McKinley
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rjquillin(at)cox.net
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| Posted: Tue Jan 12, 2010 8:32 pm Post subject: crimping with a dmc af8 crimping tool |
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At 16:40 1/12/2010, you wrote:
| Quote: | I have the tool and a m22520/1-02 head.
Just looking for the proper method of inserting the pin to be crimped as well as what a good test for the quality of the crimp should be. |
You should have a positioner to hold and properly position (gee...) the pin within the crimping pins. Which contact positioner you need is based on what socket/pin contacts you are using. To free-hand position a contact within the crimp head, well, for a reliable crimp I would think it not a good practice.
| Quote: | | I do not have a g-125 gage to calibrate with. Also, do not have more than a couple pins to practice with. |
If you're just worried about the depth of the crimp, you can purchase some gage pins from McMaster Carr for a few bucks each. Don't offhand recall the go/no-go diameters, but I can check them tomorrow and post.
If you visit the Daniels/DMC tools site, there is extensive reference material to chose the correct tooling...
http://www.dmctools.com/default.htm
Ron Q.
[quote]Thank you,
Keith McKinley[b]
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keithmckinley
Joined: 11 Aug 2008
Posts: 434
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| Posted: Tue Jan 12, 2010 8:50 pm Post subject: Re: crimping with a dmc af8 crimping tool |
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Thanks Ron,
I looked at the small pins that do the crimping and tried a test. I now see that the pin is actually inserted almost all the way into the positioner for the correct crimp. It also seems to "snap" into place.
I think my crimp was just fine as a healthy pull on the connection did not break it.
I probably should invest in the go no go tool and I do have the number for that. Saw one on ebay for 25 bucks
Thanks again
Keith
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rjquillin
Joined: 13 May 2007
Posts: 123
Location: KSEE
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| Posted: Wed Jan 13, 2010 9:33 am Post subject: crimping with a dmc af8 crimping tool |
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At 16:40 1/12/2010, you wrote:
| Quote: | Just looking for the proper method of inserting the pin to be crimped as well as what a good test for the quality of the crimp should be.
I do not have a g-125 gage to calibrate with. Also, do not have more than a couple pins to practice with. |
The G-125, aka, M22520/3-1 can be used to test crimp depth for both the small AFM-8 M22520/2-01 and large AF-8 M22520/1-01 crimpers. The NO-GO diameter is 0.0440 dia and the GO is 0.0390 dia.
Use SEL 4 for the /1-01 and SEL 8 for the /2-01 tools.
Plug gauges can be purchased from McMaster-Carr at this page
http://www.mcmaster.com/#plug-gauges/=5cx5qj
using these part numbers
23055A039
23065A044
for $3.06 each.
The G-125 tool is little more than a dual ended collet holder for these plug gauges with the above instructions...
Ron Q. [quote][b]
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keithmckinley
Joined: 11 Aug 2008
Posts: 434
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| Posted: Wed Jan 13, 2010 10:06 am Post subject: Re: crimping with a dmc af8 crimping tool |
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Thanks Ron! Above and beyond!
Keith
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Rickey B.
Joined: 22 Mar 2008
Posts: 70
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| Posted: Wed Jan 13, 2010 10:09 am Post subject: crimping with a dmc af8 crimping tool |
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Just looking for the proper method of inserting the pin to be crimped as well as what a good test for the quality of the crimp should be.
After the crimp is completed, give it a good pull test Don’t try to destroy it, but give a good firm pull.
Do NOT archive
[quote][b]
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ronr(at)advanceddesign.co
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| Posted: Wed Jan 13, 2010 10:43 am Post subject: crimping with a dmc af8 crimping tool |
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Here is a document on crimping.
Regards
Ron Raby
Lancair ES
[quote] ---
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| Description: |
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Download |
| Filename: |
CRIMPING_TECHNIQUES.pdf |
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1.51 MB |
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rjquillin
Joined: 13 May 2007
Posts: 123
Location: KSEE
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| Posted: Wed Jan 13, 2010 11:39 am Post subject: crimping with a dmc af8 crimping tool |
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Some time ago on the aeroelectric list I posted and I believe Bob archived some NASA how-to documents on various wiring practices, among them harness fabrication and wire terminations. Included were accepted procedures to insure reliable crimps.
| Quote: | To: aeroelectric-list(at)matronics.com
From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com>
Subject: Re: AeroElectric-List: NASA docs
--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com>
At 12:48 PM 6/28/2009, you wrote:
Thanks! I'll update my library as well as the website
posting.
Bob . . . |
At 10:34 1/13/2010, you wrote:
[quote] Here is a document on crimping.
Regards
Ron Raby
Lancair ES
---
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