Routine Maintenance
Electrical System
217 217
9811/9950-1
Jump Starting the Engine
!MWARNING
In temperatures below freezing, the battery electrolyte
may freeze if the battery is discharged or poorly
charged. Do not use a battery if its electrolyte is
frozen. To prevent the battery electrolyte from
freezing, keep the battery at full charge.
If you try to charge a frozen battery or jump-start and
run the engine, the battery could explode.
Batteries produce a flammable gas, which is
explosive; do not smoke when checking the
electrolyte levels.
When jump-starting from another vehicle, make sure
that the two vehicles do not touch each other. This
prevents any chance of sparks near the battery.
Switch off all circuits which are not controlled by the
starter switch.
Do not connect the booster (slave) supply directly
across the starter motor.
Use only sound jump leads with securely attached
connectors. Connect one jump lead at a time.
The machine has a negative earth electrical system.
Check which battery terminal is positive (+) before
making any connections. Keep metal watch straps and
jewellery away from the jump lead connectors and the
battery terminals - an accidental short could cause
serious burns and damage equipment. Make sure you
know the voltage of the machine. The booster (slave)
supply must not be higher than that of the machine.
Using a higher voltage supply will damage your
machine's electrical system. If you do not know the
voltage of your booster (slave) supply, then contact
your JCB dealer for advice. Do not attempt to jump-
start the engine until you are sure of the voltage of the
booster (slave) supply.
8-2-7-4
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