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This is a safety precaution. Disconnecting the ground cable protects you from accidental shocks, accidental engine starts (by someone unaware of your presence underneath, perhaps), in airbag equipped vehicles it prevents the airbag from deploying accidentally (expensive and/or injurious). Obviously, if the repairs in question require that battery power be available, you wouldn't disconnect it, but the protection it offers is well worth the extra minute it takes to disconnect the cable. As far as why the negative instead of the positive cable is disconnected, the reason is that if you are touching the positive cable and anywhere else on the vehicle, you'll get shocked. Not so, with the negative cable. Also, the negative cable seems less prone to sparking than the positive cable. If, however, you are working on a vehicle with positive ground (uncommon in North America), the positive (ground) cable is to be disconnected
What else can I help you with?
What is the procedure of the baterry?
The vehicle battery's main purpose is to supply power for the starting system and to power some accessories when the engine is not running. The proper procedure for changing or installing a battery... remove the battery cable first from the negative battery terminal, then from the positive. Install opposite, attach the positive cable lead, then the negative.
How do you change starter on ranger 2002?
Jack and support front or use ramps to elevate front of vehicle. Disconnect the negative battery terminal. Remove electrical connections and then the mounting bolts, be careful, the starter is very heavy. Align and install mounting bolts, then reconnect electrical connectors, and reinstall negative battery cable. It might be a good time to disconnect the positive battery terminal as well, use a terminal cleaner to clean the battery terminals, the insides of the clamps, then spread dielectric grease over terminal, reconnect all and snug.
Where are jump start terminals Mercedes elegance?
The battery post positive terminal is where you connect the positive cable. Connect the negative cable to anyplace on the engine or chassis. Connect positive first and remove it last.
Should a cable running to the alternator be live?
Yes This Cable Is Connected To A Group Of Cables That Run To The Battery Positive Side, To Allow The Alternator To Charge The Battery.,Do Not Remove Or Install An Alternator Until You Remove The Ground Terminal From Your Battery.
How do you remove the starter on a 1984 Mazda B-2000?
I changed my starter motor on my 1984 B2000 Pickup. Has to be done from underneath. Raise the front end - use jackstands. Remove the negative battery terminal. The holding bolts on the starter are difficult to reach and slow to remove but,with patience, can be done. Space around the motor is tight but with persistance, you can snake it out. Good Luck.
How do you remove the battery from a 2004 Honda Shadow Aero?
Remove the seat. You will find the battery under it. Remove the negative terminal first, then the positive terminal.
Replace battery 2004 Dodge Durango?
REMOVAL Turn the ignition switch to the Off position. Be certain that all electrical accessories are turned off. Loosen the battery negative cable terminal clamp pinch-bolt hex nut. Disconnect the battery negative cable terminal clamp from the battery negative terminal post. If necessary, use a battery terminal puller (2) to remove the terminal clamp from the battery post. Loosen the battery positive cable terminal clamp pinch-bolt hex nut. Disconnect the battery positive cable terminal clamp from the battery positive terminal post. If necessary, use a battery terminal puller (2) to remove the terminal clamp from the battery post. Remove the battery cables from the battery. Remove the battery thermal guard (1). Remove the battery hold down bolt (1) and battery hold down (2) from the battery. WARNING: Wear a suitable pair of rubber gloves (not the household type) when removing a battery by hand. Safety glasses should also be worn. If the battery is cracked or leaking, the electrolyte can burn the skin and eyes. Remove the battery from the battery tray.
Need instructions to remove and replace ford escort battery?
To remove the battery from a Ford Escort, first ensure the vehicle is turned off and the keys are removed. Disconnect the negative (-) terminal first, followed by the positive (+) terminal. Remove any securing brackets or straps, then lift the battery out of the compartment. To install the new battery, place it in the compartment, secure it with brackets, connect the positive terminal first, then the negative terminal.
Remove battery from Nissan Pulsar 2001?
Open bonnet, use a 10mm spanner, undo Negative terminal, then undo Positive terminal, loosen and remove battery bracket. Reverse procedure to install new battery.
How do you remove battery terminals in 2007 Ford Fusion?
Remove the negative terminal first and connect it back last.
Should you remove the positive or negative terminal first when replacing a car battery?
Always remove the negative (-) cable first. When connecting it back up connect the negative last.
How do you change a battery on a smart car?
Battery is located under passenger floor board. Pull back carpet to locate. Disconnect the negative termainal first, then disconnet the postive terminal. remove old batter - install new battery. Connect Negative Terminal first - then connect the positive terminal.
How do you remove the battery out of a 1992 lumina?
Start by locating the Positive terminal (usually the red one)... Disconnect it from the battery. Then do the same for the Negative terminal (the black one). Then there may be a small hex head bolt at the bottom the the battery, check for it and remove it, the battery should come right out.
When insatlling a battery what cable goes on what post?
There are typically two cables, one is usually red and the other black. The black cable attaches to the negative terminal on the battery and the red wire connects to the positive terminal on the battery. When removing the battery from the vehicle always remove the negative cable from the battery first. When installing the new battery always connect the negative cable to the battery last.
How do you change battery Kawasaki Vulcan 900 classic?
To change the battery in a Kawasaki Vulcan 900 Classic, first ensure the motorcycle is turned off and parked on a stable surface. Remove the seat by unscrewing the bolts or using the latch, depending on the model. Disconnect the negative (-) terminal first, followed by the positive (+) terminal, and then remove the old battery. Install the new battery by connecting the positive terminal first, followed by the negative terminal, and reattach the seat securely.
Is it right to remove the positive terminal ahead of the negative terminal?
No, you should remove the negative first. That way if your wrench slips and hits a metal part of the car and the battery at the same time it will not spark.No, you should remove the negative first. That way if your wrench slips and hits a metal part of the car and the battery at the same time it will not spark.
How do you replace the battery on a 2003 Harley Davidson super glide?
Undo the single screw on the rear fender, lift, slide back and remove the seat. At the battery, undo the negative terminal, undo the positive terminal, remove the battery from the box. Refit is the reverse of removal.
