connection should therefore be made to a point well away
from the battery, and from any fuel vapour area or moving
parts. An engine hanger bracket is often ideal.
iv) Start the subject vehicle in the usual way, and run at a fast
idle.
v) A spark will occur at the first disconnection of a jumper cable,
so it is essential that the first disconnection is made from the
slave car earth. Both batteries (especially the discharged one)
will be ‘gassing’ heavily at this time, and if the first disconnec-
tion is made at a battery terminal, there is a danger that the
hydrogen gas may be ignited by the spark with a resultant
explosion.
vi) Have the cause of the flat battery investigated and rectified,
and trickle charge the battery as detailed above.
WARNING
• Boththenalconnectionandtherstdisconnectionshould
be made away from the battery to reduce the risk of explo-
sion.
• Causinganelectricalshortcircuitcouldresultinserious
personal injury and/or vehicle damage.
• Useonlyjumpercablesofadequatecross-section,ttedwith
completely insulated alligator clamps. The cables must be
long enough to allow that neither cars nor cables touch each
other.
• Followall warningsandinstructionsofthejumpercable
manufacturer.
• Whenconnectingthejumpercables,keepthemawayfrom
engine moving parts.
• Thetwocarsmustnotcontacteachother,orcurrentcould
flow as soon as the positive terminals are connected.
• Whentherstclamponeachcableisconnected,theother
clamp on that cable must be held carefully to make sure it
does not come into contact with either another cable clamp
or either car.
• Ensurethattoolsormetalwatchesorjewellerydonotcon
tact the battery terminals or electrically live components.
Electrical
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