Fuse

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UK-Cub
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Fuse

Postby UK-Cub » Sun Dec 04, 2016 4:00 pm

image.jpeg


My Cub has a 12V alternator and a similar wiring arrangement to this diagram - I have a horn wired from the ammeter and no ballast resistor and assume therefore the coil is 12V.

(I downloaded the diagram some time ago from the site and wish to thank and acknowledge the author.)

I see eleswhere on the site the fuse is 20 amp, there isn't a fuse on the diagram but mine was wired into the lighting circuit only, and rated at 30 amps.

I was thinking of wiring the fuse after the ammeter and before any loads to protect all the circuits.

I welcome your comments on this and advice on the correct amperage.
David

1956 Lister D stationary engine
1957 French Cub
2012 Land Rover Defender 110 double cab pick up

Every day is a school day

"Choose a job you love and you will never have to work a day in your life" Confucius

Jim Becker
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Re: Fuse

Postby Jim Becker » Sun Dec 04, 2016 4:39 pm

For that diagram, the fuse would be located in the lead "to headlight switch". Some tractors had the fuse mounted directly on the switch. Do not move it to the location you are considering. If it blows (for any reason), all it will do is take the battery out of the system and the alternator will directly feed whatever is turned on (or shorted). It is never a good idea to have an engine running with the battery disconnected.

20 vs. 30 amps for the fuse won't really matter. If there is a short, either will blow pretty quickly.

UK-Cub
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Joined: Mon Jun 16, 2014 3:48 pm
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Re: Fuse

Postby UK-Cub » Sun Dec 04, 2016 4:58 pm

Thanks Jim.

David
David

1956 Lister D stationary engine
1957 French Cub
2012 Land Rover Defender 110 double cab pick up

Every day is a school day

"Choose a job you love and you will never have to work a day in your life" Confucius

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John *.?-!.* cub owner
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Re: Fuse

Postby John *.?-!.* cub owner » Sun Dec 04, 2016 6:20 pm

I would recommend nothing larger than 20 amps, maybe only a 15 amp. The lights on 6 volts used a 20 amp fuse, but the 12 volt bulbs will need less current.
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you are part of the problem!!!

UK-Cub
Cub Star
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Posts: 175
Joined: Mon Jun 16, 2014 3:48 pm
Zip Code: LA9
Circle of Safety: Y
Location: Kendal, England

Re: Fuse

Postby UK-Cub » Mon Dec 05, 2016 12:51 pm

........and thank you John.

David
David

1956 Lister D stationary engine
1957 French Cub
2012 Land Rover Defender 110 double cab pick up

Every day is a school day

"Choose a job you love and you will never have to work a day in your life" Confucius


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