SAFETY
3-14
3TNV88F Service Manual
Safety Precautions
Use a new special O-ring between the engine
coolant pump and the joint. Be sure to use the
special O-ring for each engine model. Although the
O-ring dimensions are the same as a commercially
available O-ring, the material is different.
Remove or install the high-pressure fuel injection
lines as an assembly whenever possible.
Disassembling the high-pressure fuel injection lines
from the retainers or bending any of the fuel lines
will make it difficult to reinstall the fuel lines.
After marking the position of the pump drive gear,
do not rotate the engine crankshaft. Rotating the
crankshaft will cause the fuel injection pump to
become misaligned.
Do not use a high-pressure wash directly on the
alternator. Water will damage the alternator and
result in inadequate charging.
Do not reverse the positive (+) and negative (-)
ends of the battery cable. The alternator diode and
stator coil will be damaged.
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.
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