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 Post subject: SNAP-ON MT-665 Restoration
PostPosted: Apr Thu 13, 2017 2:30 am 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
A friend of mine who owns Jason's Bug Ranch in Winter Garden Florida has taken me to task to restore a old SNAPON MT-665 unit to full service, for which there is no schematic to be found anywhere, broken parts had to be fabricated, and other wonderful adventures along the way.



Heres the trailer for the project. After a head start the videos are buffered enough to start posting next week.

https://www.youtube.com/watch?v=o19R3yYx96E


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Apr Thu 13, 2017 2:44 am 
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Joined: Jan Sun 18, 2015 5:01 am
Posts: 825
Location: Waxahachie Texas
It would be nice to let us know what a Snap-On MT-665 is in the title.

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Crist


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Apr Thu 13, 2017 3:08 am 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
In the time it took you to post sarcasm.... you could have googled it.


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Apr Thu 13, 2017 4:10 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 16519
Location: Albuquerque, NM 87123
I think Mr. Rubin wants us to keep our criticisms to ourselves.


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Mon 15, 2017 1:57 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
The videos have started to be pushed onto youtube for a few weeks ive just gotten around to posting the links here, as i try to stay ahead. Edited in a way to also keep this dry troubleshooting event entertaining, having no schematic and no documentation on this unit. note that I am editing Part 8 and am way past anything you are viewing at this point.

Video Part 1
https://www.youtube.com/watch?v=vY5E5pr9Ixw

Video Part 2
https://www.youtube.com/watch?v=Qni1z2bvhrc

Video Part 3
https://www.youtube.com/watch?v=XsMKsYQSfFA


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Mon 15, 2017 10:11 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: N. Vancouver B.C. Canada
Just a reminder to keep it civil.

Sandy


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Tue 16, 2017 12:11 am 
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Joined: Nov Thu 22, 2007 11:31 pm
Posts: 819
Location: Johnston, Iowa
Sun Electric was purchased by SNAP-ON in 1992. For the older Sun equipment Jaidinger Mtg. co http://www.jaidingermanufacturing.com/has many of the old repair manuals with schematics and troubleshooting manuals. It's possible they would have this info for your MT-665. You might want to give them a call.
Keith


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Tue 16, 2017 3:12 am 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
I sent them an email, we'll throw it and see where it lands....

Most of the work was trace by trace to get through. and find out signal flow. Some was debuging more painful than others.


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Wed 17, 2017 2:09 am 
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Joined: Nov Thu 22, 2007 11:31 pm
Posts: 819
Location: Johnston, Iowa
I'm a late comer to electronics but have been following this forum for years. I may have missed other threads but this is the first time I've seen the use of a neon bulb to test flyback transformers. Will this work for all flybacks?
keith


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Wed 17, 2017 3:31 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 10754
Location: Mpls, Minnesota
keith49vj3 wrote:
Will this work for all flybacks?
keith

Yes, the neon bulb will work. In the TV shop we just used a screwdriver to draw an arc.

Dave


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: May Mon 29, 2017 7:11 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
Video Part 4
https://www.youtube.com/watch?v=WicFHVL5gLQ


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jun Mon 12, 2017 1:33 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
Video Part 5
https://www.youtube.com/watch?v=gYuhk2i07Yw


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jun Mon 19, 2017 4:35 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
Video Part 6
https://www.youtube.com/watch?v=Y8BI26UVBUk


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jun Mon 26, 2017 2:12 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
Video Part 7
https://www.youtube.com/watch?v=QFvkG31429I


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jul Mon 03, 2017 2:03 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
Video Part 8

https://youtu.be/ahTyNg3xj1U


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jul Mon 03, 2017 2:37 pm 
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Joined: May Sun 28, 2017 9:08 pm
Posts: 132
Location: Whiteville, TN
I googled it. Engine analyzer oscilloscope, the first really high tech way of troubleshooting gas engines. Would have been nice to know at the get-go. Hope I don't make that mistake in the future......

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Karl
KI4ZUQ


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jul Wed 05, 2017 2:08 am 
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Joined: Nov Wed 30, 2016 7:35 pm
Posts: 275
Drawing an arc with a screwdriver ... ahhh, the good old days. I experimented a little bit once, and discovered you can actually punch a hole in a flyback, or even the cap on any one of the several high voltage tubes ............

The neon bulb, for those interested, is safer :)


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 Post subject: Re: SNAP-ON MT-665 Restoration
PostPosted: Jul Mon 10, 2017 2:03 pm 
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Joined: Aug Sat 01, 2015 8:54 pm
Posts: 53
Video 9 posted - the end

https://www.youtube.com/watch?v=a8TNs0LBuT4


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