FMTV Circuit Breakers

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mkcoen

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Checking all my lights this afternoon for the trip to pick up my new trailer and found I had no tail lights. I've had this issue before and by simply wiggling the CB for the tail lights they'd work until I left it sitting for a couple of days. Well I went to try this little trick and discovered the CB is missing. I don't know if it was the AC shop or someone just randomly stopping by, pulling up my 100' long drive way, taking the dash apart, and then pocketing a trophy like Pokémon but it's missing. Since I have a 0430 departure time tomorrow morning it's kind of a burning issue.

So here's the question: what have others been using to replace CBs with? They're not something AutoZone has sitting around so would it be a big deal just to replace it with a 25 amp fuse? And if that's okay is it fine in the long run or just a temporary bandaid?
 

Suprman

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A blade fuse works just fine. Just keep a spare on hand since its one use. You can steal a breaker from a less used spot and put the fuse in its place.
Will
 

mkcoen

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A blade fuse works just fine. Just keep a spare on hand since its one use. You can steal a breaker from a less used spot and put the fuse in its place.
Will
Unfortunately there's only a couple of 25 amp CBs and the tail lights and markers are 2 of them. I'll just start packing a handful of extra fuses and try that route for the time being. Any guidance on buying new replacements for the CBs?
 

coachgeo

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Since Circuit breakers are basically a Fuse in concept right? Maybe I'm sucking on a bad egg here but if that is true .... knowing the trick presented in the two post below can give you more options to solve CB issues.

How/Why/When you can use a 24v Circuit Breaker in a 12V location and Visa Versa

http://www.steelsoldiers.com/showth...Gen2-Details&p=1886190&viewfull=1#post1886190
http://www.steelsoldiers.com/showth...Gen2-Details&p=1886274&viewfull=1#post1886274

Both above found in an AirCon thread... http://www.steelsoldiers.com/showth...ighlight=Circuit+Breaker+Forumula#post1886274
 

Suprman

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Regardless of 12 or 24 volt and the breaker size if you have a dead short it will trip. There is some leeway in fuse or breaker sizing in the LMTVs. As long as you don't use a breaker with too low of a rating that normal operation causes it to trip.
 

wheelspinner

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CB are typically used when a slower reaction time is needed. It's not much of a difference but fuses are faster. When I worked for a bus manufacturer we used both dependent on the circuit needs. Most electrical panels would have what looked like a hodgepodge of both but it was by design.
 

mkcoen

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Thanks Floridianson. Since this posting back in July I've just been running with a standard size blade fuse and have not had any issues. I actually prefer them to the "tripping all the time" circuit breakers. I haven't lost one yet but in case I do I've got a variety with me in the truck now.

IMG_4589.jpg
 

Floridianson

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I was going to go that route to but as Will said the one auction /bid sight had them 2 for 7 bucks so I stocked up. Free shipping to.
 
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