tractor ..emercency buzzer. electrial advice

bk1991

hi guys

i want ur help on putting some sort of device on my potatoe harvester
...it is a trailed harvester behind tractor with people working inside it sorting the potatatoes i want something for the people in harvester to press something that sounds a loud horn or buzzer to tell tractor driver to stop ...

it must have two switches/ for both sides of picking table

also how do i get power for it

any help very welcome


bk1991

746watts

Easy! You have a 7-pin trailer socket on the back of the tractor. Looking straight into your tractor socket the pin for Spare/Fog/Reversing is at 2 o'clock.
So what you can do is mount a car horn in the cab with +ve feed from the dash to one terminal on the horn. The other terminal -ve is run to the spare/fog/reversing pin.
On the spud harvester you have a trailer socket with 2 wires coming from the connecting pin for 4 o'clock, one goes either side of the harvester to a push and release button. The other side of the button is wired to the frame of the harvester.
So this is how it works.... the spud picker has a problem a presses the button, he/she completes the earth circuit so therefore current flows from the dash into the horn and it makes noise.
This will work lovely assuming you aren't already using the Spare/fog/reversing pin. If you are you can add another trailer socket wiring up the single pin.
It's a good idea you have as machinery can be dangerous. Anything to make things safer is good.

bk1991

746watts wrote: »

Easy! You have a 7-pin trailer socket on the back of the tractor. Looking straight into your tractor socket the pin for Spare/Fog/Reversing is at 2 o'clock.
So what you can do is mount a car horn in the cab with +ve feed from the dash to one terminal on the horn. The other terminal -ve is run to the spare/fog/reversing pin.
On the spud harvester you have a trailer socket with 2 wires coming from the connecting pin for 4 o'clock, one goes either side of the harvester to a push and release button. The other side of the button is wired to the frame of the harvester.
So this is how it works.... the spud picker has a problem a presses the button, he/she completes the earth circuit so therefore current flows from the dash into the horn and it makes noise.
This will work lovely assuming you aren't already using the Spare/fog/reversing pin. If you are you can add another trailer socket wiring up the single pin.
It's a good idea you have as machinery can be dangerous. Anything to make things safer is good.

i am useing the number 2 pin for work lights for harvester
if i put say another plug on the tractor i could get power for the system

first off could u tell me how id wire it
i was thinking of placeing horn on harvester dnt wana blow ears of tractor driver

aswitch on a cord would work also

in easy steps how i wire it

maidhc

bk1991 wrote: »

i am useing the number 2 pin for work lights for harvester
if i put say another plug on the tractor i could get power for the system

first off could u tell me how id wire it
i was thinking of placeing horn on harvester dnt wana blow ears of tractor driver

aswitch on a cord would work also

in easy steps how i wire it

Just get a 12v supply from somewhere. Most modern tractors have a rake of various connectors.

DONT put a horn in the cab. Just get a buzzer. Maplins in Cork and Dublin sell them, but I'm sure you would get one from any motor factor.

bk1991

something like this would work woulnt it ?