Land Rover Monthly - - Classic Q& A -

Jump start­ing – it’s re­ally es­sen­tial to get the con­nec­tions right, and to check the pro­ce­dure in the ve­hi­cle hand­books

IF YOU need to jump start a ve­hi­cle, there are a few ba­sic steps to fol­low:

1. Check your leads – are they fit for pur­pose? Are they thick enough? Are the clamps se­cure?

2. If avail­able, use a jump-start pack – it’s much safer, and less likely to da­m­age any­thing.

3. Con­nect jump leads in this or­der – pos­i­tive clamp to charged bat­tery, then the other pos­i­tive clamp to the dead bat­tery. Then the neg­a­tive clamp to the dead bat­tery, and fi­nally fit the other neg­a­tive clamp to the chas­sis of the ve­hi­cle with the charged bat­tery, away from the bat­tery it­self. This means that any spark­ing at con­nec­tions will be away from the bat­ter­ies.

4. Be care­ful to con­nect the leads cor­rectly – if you get this wrong, best case is that you will blow the al­ter­na­tor diodes (if fit­ted). In the worst case, the bat­tery could ex­plode.

5. Once con­nected, run the en­gine of the ve­hi­cle with the good bat­tery at fast idle to ini­ti­ate some charge into the dead bat­tery – al­low a cou­ple of min­utes be­fore try­ing to start the dead ve­hi­cle.

6. Once you have fin­ished – dis­con­nect the leads care­fully in the re­verse or­der to above.

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