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Jump Lead Starting
If the
engine
will not
start,
e.g. because the bat-
tery is flat in winter, or after your Porsche has
been left
standing
for a prolonged period of
time, the battery of another vehicle
can
be used
as an auxiliary. For this you will need jump
leads. When
starting
your Porsche in this way
keep the following in mind:
1. Both batteries must be 12-volt batteries. The
capacity (Ah) of the feed battery must not be
too much lower than that of the flat
battery.
2. Only jump leads of
sufficient cross-section
and fitted with insulated terminal clamps may
be used. Always follow the manufacturer's in-
structions.
3.
A flat battery
can
freeze
at -
10°C.
A
frozen battery must be thawed out before
jump cables are
connected
to it.
4. There should be no contact between the ve-
hicles.
Otherwise,
current
may flow as soon
as the positive terminals are
connected.
Danger of short-circuit!
5.
The flat battery must be correctly
connected
to its vehicle's electrical
system.
Do not
stoop over the battery.
Danger of contact with caustic fluid!
GA
4
3 "
I
.iJ
A
-
Flat
battery
B
-
Feed
battery
6. Protect the battery from
sources of
fire
such as naked flames, burning
cigarettes,
sparks
caused
by electrical wiring or weld-
ing etc.
Danger of explosion!
Be
careful
not to allow
conductive
jewelry
such
as
rings,
necklaces, watchstraps etc.
to
come into contact
with live parts
of
the
due
to
short-cir-
7.
Connect
the jump leads in such
a
way
that
they cannot
be
caught
up by rotating
parts in
the engine compartment.
Connect the
jump leads as follows:
First connect
the
+
lead to the + terminal of
the
flat battery
(A), then to the + terminal of
the
feed battery
(B),
then
connect the
-
lead first to the
-
terminal of
the feed
battery,
then
connect the other end
to
a suitable
ear-
thing point (4) on the
engine
or on the body
of the
car
with the flat
battery.
This earthing
point must be as far
as
possible from the
battery.
8. Start the engine of the vehicle with the
sup-
plying
current.
Run engine with higher rpm.
·
9.
Start the
engine.
Do not
crank
the engine for
more than 15
seconds;
wait for at least 1
minute before repeating the attempt.
10. With the
engine
running, disconnect the ca-
bles in the reverse
order.
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