21
Battery Service
WARNING
For your personal safety, use extreme care when
jump starting. Never expose battery to open
flame or electric spark – battery action generates
hydrogen gas which is flammable and explosive.
Do not allow battery acid to contact skin, eyes,
fabrics, or painted surfaces. Batteries contain a
sulfuric acid solution which can cause serious
personal injury or property damage.
WARNING
Any procedure other than the preceding could
result in:
(1) personal injury caused by electrolyte squirt-
ing out the battery vents,
(2) personal injury or property damage due to
battery explosion,
(3) damage to the charging system of the
booster vehicle or of the immobilized vehicle.
Do not attempt to jump start a vehicle having a
frozen battery because the battery may rupture
or explode. If a frozen battery is suspected,
examine all fill vents on the battery. If ice can be
en or if the electrolyte fluid cannot be seen, do
not attempt to start with jumper cables as long
as the battery remains frozen.
WARNING
To avoid engine damage, do not disconnect bat-
tery while engine is running. Be sure terminal
connections are tight before starting.
Figure 25. Battery Jump Starting Diagram
WARNING
When removing or installing battery cables, dis-
connect the negative cable FIRST and reconnect
it LAST. If not done in this order, the positive ter-
minal can be shorted to the frame by a tool.
To
Starter
Switch
Starting
Vehicle
Battery
To Ground
To
Starter
Switch
Discharged
Vehicle
Battery
Engine
Block
THIS HOOK-UP FOR NEGATIVE GROUND VEHICLES
MAKE CERTAIN VEHICLES DO NOT TOUCH
Jumper Cable
Jumper Cable
