Agreed some how you have some information that I did get nor receive such as to the load and out put, I used the assumption that was in his original post that he had crashed and burned and had no idea as to why or what his load was and that he was going to replace it possibly with a after-mart assy. And at that time of a unknown type and size and was very undecided and confused I was only trying to put him on a straight road that why I kept asking him what his load factor was going to be before I could help him and I never got that answer for with out knowing it I could not prescribe anything. In my mind using the info. that he sent he implied that they maybe lights that would have a draw exceeding a 55watt load. PaulAre you implying that I did not also graduate with my engineering degree? I hope not? because you would be wrong.
Lets look at this practically, since that seems to be the chaper you liked the most.
1, his tractor's charge system is extremely anemic. There's no point in running more load than the tractor can handle on a steady basis. Given that. lamp switches currently in production, and, well.. installed at the fatory are fine for his application.
Relays are for running less copper, and running laods impractical on switches.. IE.. you don't want a battery disconnect sized switch in the dash for lamps.
however.. dealing with the small load he has.. a regular off the shelf lamp switch will be fine.
ford engineers though so as well.
based on his application, intended load and statements.. adding a relay would just serve to spend money, and complicate the electrical system for the next time someone tries to troubleshoot it.
IMHO.. if he had a meltdown earlier.. it was misswireing, vs improper ratings. even an overloaded switch won't let the magic smoke out imediatly.. based upon the description of the failure.. I'd say it was not fused to protect the wireing either, of which, the switch rating would be a part of too.
now that's practical application... not.. how much technology can we cram into a 48 year old tractor..
soundguy
Okay Soundguy, that sounds like the plan I'll go with. If Ford didn't use a relay originally, then I don't see where I need to either. I apologize for getting you and Twoone into an argument. I never meant for that to happen. Twoone, if you're reading this, I apologize to you as well. I appreciate all your input, but in this case, I think the "no relay" is more practical for me since it originally didn't have one anyway. Thanks to all of you for your help.
Thanks Paul. I'm sorry I didn't make myself clear about what I intended to use, and I too guess I might have just "assumed" everyone would know that I would use 55 watt lights on my application. Anyway, sorry again for any misunderstandings I may have caused. For the record, I think both you and Soundguy are incredibly knowledgable, about such things!
If you are looking to reduce your power requirements you can also get lower power lamps. Grote Industries: Product #64101 - 12-Volt, Sealed Beam is a 35w - probably closer to the power of the original.
If you are running 55w lamps one would be plenty bright but would look odd with only one on. My tractor headlamps are useless (they light up the back of the bucket real well) but I have lots of light with one 55W flood overhead (one towards front, one facing rear). Maybe you should leave the sheetmetal alone and build your self a ROPS with canopy and install overhead?:thumbsup:
Also, while not a huge consumption, you can replace a flasher (rear red) with an LED bulb, 1156 LED is commonly used and relatively cheap.
P.S. I sold my '74 Ford 2000 diesel when I bought my new tractor
back on page 4, post # 36, it was mentioned about the 35w lamps..e tc.
if he gets a red led lamp for a flasher, he will also need a electronic flasher module, and not a regular heated bi-metalic strip flasher module.
soundguy