The Truman Doctrine arose from a speech delivered by President Truman before a joint session of Congress on March 12, 1947.
Positive First. When installing a mower battery, always connect the positive cable first. The positive cable is red. It attaches to the battery terminal post marked with a plus sign, the letter P or the word POS. Attach the negative cable last. The negative cable is black.
Make sure that the leads make a good connection-you can do this by scraping the terminals to show bare metal. The reason for connecting the red leads first (+) is to minimise the risk of a 'short circuit'. Connect the black leads: After you have connected the positive leads, connect the black negative leads.Start by connecting the black lead to the negative pole, marked with a minus sign (-) of the good battery and then to a bare metal part of the engine on the car with the flat battery (at least 45 centimetres from the battery for safety).ake sure that the leads make a good connection-you can do this by scraping the terminals to show bare metal. The reason for connecting the red leads first (+) is to minimise the risk of a 'short circuit'. Connect the black leads: After you have connected the positive leads, connect the black negative leads.