The cross section of the emergency cable for an Otto engine with a displacement of up to about 2.5 liters must be at least 16 square meters. mm (diameter about 5mm). For diesel engines and Otto engines with a displacement of more than 2.5 liters, the cross section must be at least 25 square meters. mm. In this case, you need to focus on a car with a discharged battery.
Both batteries must have a nominal voltage of 12 volts.
A discharged battery can freeze already at -12 degrees. C. Before connecting the emergency cable, a frozen battery must be warmed up.
A discharged battery must be properly connected to the on-board network.
(In 1633) put the cars in such a way that there is no galvanic contact between them. Otherwise, a current may already occur when the positive poles are connected.
Put both cars on the handbrake. Shift the manual transmission to the neutral position, the automatic transmission to the position "R" — "parking".
Switch off all current consumers.
Start the engine of supply vehicle A at idle speed.
Connect the emergency cable in the following sequence: 1. Connect the red cable to the positive terminal of the discharged battery. 2. Connect the other end of the red cable to the positive pole of the battery. 3. Connect the black cable to the negative terminal of the supply battery. 4. Connect the other end to a reliable "mass", for example, to the engine block of the receiving vehicle. When connecting the cable to the negative pole of a discharged battery, under adverse conditions, due to sparks and the release of explosive gas, the battery may explode.
Once again check the reliability of the pole clamps. Reverse - attention to the fact that the cable does not pass near rotating parts.
Attention! The terminals of the emergency cable must not be connected to each other, for example, the positive terminals must not touch metal parts.
Start the car engine with the dead battery. When starting, use the starter for no more than 15 seconds, as the terminals and cable heat up due to the high current consumption. Therefore, it is necessary to provide "cooling" pauses of at least 1 minute.
The engine of the supply vehicle should be running mostly at idle. This prevents possible damage to the generator due to current surges. Although, if the speed drops sharply, then you can give gas.
During an emergency start, there should be no open fire near the battery, because. flammable gas may escape from it.
After the emergency start, disconnect the cable in reverse order.
Attention! If the prescribed connection order is not followed exactly, there is a risk of acid escaping from the battery. In addition, there may be damage and injury when the battery explodes. In addition, malfunctions of the electrical installations of both vehicles may occur.
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