Joined: May 10, 2010 Posts: 615 Location: North Yorkshire, UK
Posted: Sun Nov 27, 2011 12:49 pm Post subject: M38 Circuit breakers
Trying to make sense of the M38 circuit breaker set up.
As I understand it, the late type light switch has a built-in circuit breaker, so no additional circuit breakers are necessary. But what about the early switch (2 plugs)?
The 2-plug light switch is correct for my M38 (MC-26057), and it should also have 4 circuit breakers. My instrument panel has no circuit breaker mounted on it.
My question is: if I use the early 2- plug type light switch, do I need all 4 circuit breakers? Or can I run it without the instrument panel breaker?
Thanks in advance,
Owen. _________________ Owen
1951 US Air Force M38
1944 F-1 1/2-ton Airdrome Trailer
1940 C15 Chevrolet CMP 11-cab
1939 DKW KS200 Motorcycle
MVT # 19406
The two plug switch and the next single plug with the old boss still there for the second plug switch are used with 4 circuit breakers. Both of these switches are the Bendix/Scintilla switches and if you are running them and no other circuit breakers you have no circuit protection at all.
The second Bendix switch was phased out in Apr/May 52 when the CB's were also phased out.
Quote:
My question is: if I use the early 2- plug type light switch, do I need all 4 circuit breakers? Or can I run it without the instrument panel breaker?
Yes. You should not. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
This is a manual one. They are also available in automatic reset. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
This is a manual one. They are also available in automatic reset.
I have two of those that came in the pile of parts with the M170.
Mine don't have the red button with the rating, however. It's flush metal. Is it the automatic type? _________________ 47 CJ2A "Bugger"
42 Ford GPW
62 Willys M170
Joined: May 10, 2010 Posts: 615 Location: North Yorkshire, UK
Posted: Mon Nov 28, 2011 2:47 pm Post subject:
Yes.
If you go to the weblink Wes posted and download the data sheet pdf, a drawing of the automatic type (flush) is on the second page. _________________ Owen
1951 US Air Force M38
1944 F-1 1/2-ton Airdrome Trailer
1940 C15 Chevrolet CMP 11-cab
1939 DKW KS200 Motorcycle
MVT # 19406
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