SAFETY
TNV IDI Service Manual
3-13
Safety Precautions
When the battery indicator goes out, it should not
come on again. The battery indicator only comes
on during operation if the alternator fails. However,
if an LED is used in the battery indicator, the LED
will shine faintly during normal operation.
Using a non-specified V-belt will cause inadequate
charging and shorten the belt life. Use the specified
belt.
Agricultural or other chemicals, especially those
with a high sulfur content, can adhere to the IC
regulator. This will corrode the conductor and result
in battery over-charging (boiling) and charging
malfunctions. Consult Yanmar before using the
equipment in such an environment or the warranty
is voided.
Make sure that the combined total resistance of the
battery cable in both directions between the starter
motor and the battery is within the value indicated
on the wiring diagram. The starter motor will
malfunction or break down if the resistance is
higher than the specified value.
The starter motor is water-proofed according to JIS
D 0203, R2 which protects the motor from rain or
general cleaning. Do not use high-pressure wash
or submerse the starter motor in water.
Use a specialized battery charger to recharge a
battery with a voltage of 8 volts or less. Booster
starting a battery with a voltage of 8 volts or less
will generate an abnormally high voltage and
destroy electrical equipment.
Make sure that the combined total resistance of the
battery cable in both directions between the starter
motor and the battery is within the value indicated
in the Battery Cable Resistance chart in the Electric
Wiring Section of this manual. The starter motor will
malfunction and fail if the resistance is higher than
the specified value.
Removing the battery cables or the battery while
the engine is operating may cause damage to the
current limiter depending on the electrical
equipment being used. This situation could cause
loss of control of output voltage. The continuous
high voltage of 23-24 volts (for 5000 rpm dynamo)
will damage the current limiter and other electrical
equipment.
Reversing the battery cable connections at the
battery or on the engine will destroy the SCR diode
in the current limiter. This will cause the charging
system to malfunction and may cause damage to
the electrical harnesses.
• NEVER attempt to modify the engine’s design or
safety features such as defeating the engine
speed limit control or the diesel fuel injection
quantity control.
• Modifications may impair the engine’s safety and
performance characteristics and shorten the
engine’s life. Any alterations to this engine may
void its warranty. Be sure to use Yanmar genuine
replacement parts.
Identify all parts and their location using an
appropriate method. It is important that all parts are
returned to the same position during the
reassembly process.
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