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Why does your negative side of the battery arc when you touch the cable to the neg post This is on an old ford tractor?
Wiki User
∙ 12y ago
Your ignition switch may be on or something else like lights.
If this tractor is old enough, it could also be a positive ground system.
Wiki User
∙ 12y ago
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What happens when you touch the negative battery cable to the positive battery cable?
current flows from the negative to the positive cable and back into the battery cells, recombining with the element depleted of electrons that are flowing out the negative cable. The process is not 100% efficient and the battery will eventually cease producing current.
How do you connect a car battery cable to a battery not in the car?
It would be essentially the same as connecting a battery in the car, except with longer cables. You would have to use jumper cables to extend the car battery cables. Be sure to follow ALL safety procedures. Do NOT let anyone or anything metal touch anything else except where you make the connections. Do not touch the metal connectors themselves. I assume there is no battery in the car. I will call the battery that is not in the car the "external battery". First connect the positive ("+", usually red) jumper cable to the positive car battery cable, & then the other end of that jumper cable to the positive external battery terminal. Then do the same with the negative ("-", usually black) car battery cable & jumper cable. The last thing you connect should be the far end of the negative jumper cable to the negative terminal of the external battery. When you are ready to disconnect the external battery from these cables, do so in reverse order, starting with disconnecting the negative ("-", usually black) jumper cable from the negative external battery terminal.
How do you change a battery on a dodge Dakota?
Disconnect the positive (+ / red) cable first. Then disconnect the negative (- / black) cable. Do not let one touch metal when other on battery. Take off brackets holding battery and remove. Replace with new battery, put in brackets... attatch cables, negative first, then positive.
How do you reset the service engine light on your 1992 wrangler?
Disconnect the POSITIVE battery cable and touch it to the negative terminal OR disconnect the POSITIVE battery cable for about 30 minutes (either way drains the capacitors in the electrical system)
How do you you take out the battery on a 2005 Kia Spectra?
first you need to disconnect the negative cable (black) you need to use a 10mm or 12mm wrench to loosen the nut at the cable post, move away the cable so it does not touch the battery. Next do the same for the positive side (red), move away the cable so it does not touch the battery. in front of the battery on the bottom is a bolt, use either a 12mm, 13mm, or 14mm (which ever fits) socket with a extention to reach the bolt and remove it, remove the metal bracket the bolt was screwed to and the battery can now be removed ***when installing the new battery REMEMBER to reconnect the positive (red) cable first then negative (black) cable as this will prevent a voltage spike from happening
How do you cut all power to a car without touching the battery?
Disconnect the battery cable, you do not have to touch the battery.
How do i identify negative and positive battery cables on a 1991 ford mustang. there are no red or black markings?
The Negative - Battery Cable will be connected to ground. Ground is the engine block, frame, or other non-electrical part of the vehicle. The other cable is positive. Another way is to connect an ohm meter black test probe to the engine block and touch the red test probe to the cable you think is ground -. If the circuit is complete you have found the negative cable.
Do you hook up the positive or negative wire first on a battery?
Always hook up the red or positive cable first, otherwise you could cause a short between the battery and the car through your wrench. Ths of course could cause an explosion or other problems. The black or negative cable goes straight to the engine and the car's frame, so your wrench can touch the frame when you are tightening the cable end on the battery with no worry.
Why do you disconnect the negative battery terminal first?
It is a safety issue. The reason is that when you are using a wrench to disconnect the battery cable you can easily touch a portion of the car that is grounded. If you were disconnecting the positive + cable first and you accidently touch a metal part the vehicle you will create a massive short circuit with the fireworks involved. The wrench in your hand will become an arc welder. By disconnecting the negative - cable first there is no danger of this happening as touching a metal part of the vehicle will do nothing as you are already working with the ground. Always disconnect the ground cable first and then you can move to the positive cable without worries.
Do you have to take out the battery when changing a high voltage car fuse?
Don't have to take the battery out but it should be disconnected. Carefully disconnect the negative (usually black) battery cable from the battery. Be sure you do not let the connector end of that cable or the negative battery terminal touch anything! (I put a heavy-duty plastic baggie over the connecting end of the cable & secure it with a rubberband. No baggie ties!) If the free end of the cable, or the disconnected terminal, touches anything conductive it will short out whatever it touches & could cause hundreds (or thousands) of dollars of damage. It could even cause an explosion if there is hydrogen gas accumulated near the battery, serious injury, or even death. Once the negative battery terminal is disconnected, there should be no electricitity flowing anywhere, & it should be safe to change the fuse.
Does the battery need to be disconected to change alternator belt?
Yes. Anytime you work with the alternator you should disconnect the negative battery cable. You don't want to accidently touch a positive connection on the aternator while loosening the alternator holding nuts/bolts.
How to replace alternator on 2001 Pontiac Grand Am?
Disconnect negative battery cable first. Locate alternator. locate belt tensioner. Use rachet to retract belt tensioner so belt can be removed off alternator. Remove alternator mounting bolts. disconnect positive cable and field wires from alternator. Remove alternator. Reverse to install. Removal of negative battery cable first prevents a short should the wrench touch metal or car ground. Some mechanics just remove the positive cable but risk a dead short shoud the wrench touch vehicle ground.
