10
MAINTENANCE
104 AXH1157-UK (ENG) L3500 L4700 F7000 [FPT S3A]
• Place the vehicle in the service position as
described in the "Setting the vehicle for
maintenance" section.
• To access the battery it is necessary to remove the
protection guards.
• Disconnect the NEGATIVE cable (black) from the
battery.
• Disconnect the POSITIVE cable (red) from the
battery.
• Remove the battery from the vehicle.
• Place the new battery.
• Connect the POSITIVE (red) cable to the battery.
• Connect the NEGATIVE (black) cable to the
battery.
• Reactivate the battery isolation switch.
• Close the engine hood.
10.4.6 - Start up with auxiliary
batteries
WARNING
Start-up with auxiliary batteries is an
operation that requires two properly
trained and qualified operators.
An error in executing the operations can cause
serious damage to the vehicle, to property and
people.
• When starting the engine using another vehicle,
connect the accumulators in parallel. When
connecting the cables, avoid contact between the
positive cable "+" and the negative cable "-".
• Wear the necessary personal protective
equipment before starting the operation.
• Take care to avoid contact between the vehicle to
be started and the vehicle that must supply
power to prevent sparks and explosions of
hydrogen produced by the accumulators. The
accumulator explosion causes serious damage
and injury.
• Make sure not to exchange the ignition cables
and first connect the earth cable (-) and then the
positive cable (+).
• Be very careful when removing the ignition
cables; to ensure that the cables disconnected
from the accumulator do not touch other parts of
the vehicle to avoid explosions caused by
hydrogen.
• Cables and grippers must be proportional to the
current load to be transferred. The accumulator to
be used for the start-up must have a capacity
greater than or at least equal to that of the
standard accumulator installed.
• Check the cables and grippers for corrosion or
damage. Make sure the grippers are tightly
gripping the terminals.
• Be very careful during the different operations:
direct or indirect contact with live parts can result
in injury and sometimes even in death.
• When starting the engine, the operator must be
in the driver's seat so as to keep the vehicle under
control.
• All these operations must be carried out by skilled
and trained personnel.
10.4.6.1 - Cable connection and engine
start-up
Figure: 150539-1
1. Make sure the ignition key is in position "O".
2. Connect the cable from the negative clamp "-" of
the charged battery to the earth block of the
vehicle to start-up.
3. Connect the positive terminals"+" of the two
batteries to each other.
4. If a charged battery installed on a properly
running vehicle is used, start the engine of the
latter and run it at high rpm.
5. Start the engine of the failed vehicle.
10.4.6.2 - Cables removal
With the engine running remove the cables in reverse
order of the connection.
1. Disconnect the positive cable "+" first from the
battery used for starting and then from the low
battery.
2. Disconnect the negative cable "-" from the earth
of the running engine and therefore from the fully
charged battery.
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