Komatsu WA480-8 Operation & Maintenance Manual page 50

PRECAUTIONS FOR OPERATION
• Check the coolant level, fuel level, DEF level, and oil level in engine oil pan, check for clogging of the air
cleaner, and check for damage to the electric wiring.
• Check that there is no mud or dust accumulated around the movable parts of the accelerator pedal or brake
pedal, and check that the pedals work properly.
• Adjust the operator's seat to a position for easier operation. Check that there is no damage or wear to the
seat belt or mounting clamps.
• Check that the gauges and camera view work properly, check the angle of the mirror, and check that the
control levers are all at NEUTRAL position.
• Adjust the mirrors to have a good rearview and a good view of surrounding area from the operator's seat.
For the adjustment, see "METHOD FOR ADJUSTING MIRRORS (3-174)".
• Check that there are no persons or obstacles above, below, or in the area around the machine.
• Check that the parking brake switch is at ON (operation) position.
• Check that frame lock bar (1) is fixed securely at FREE po-
sition (F).
• Adjust the cameras to have a good rearview and a good
view of surrounding area from the operator's seat.
For the adjustment, see "METHOD FOR ADJUSTING
REAR VIEW CAMERA ANGLE (3-175)".
• If snowfalls adhered to a camera, eliminate them with se-
curing your safety by using a stepladder.
PRECAUTIONS WHEN STARTING ENGINE
The machine may suddenly move off and this may lead to serious personal injury or death. Always observe the
following.
• Start the engine only while sitting down in the operator's seat.
• When starting the engine, sound the horn as a warning.
• Prohibit other personnel to get on the machine.
• Do not attempt to start the engine by short-circuiting the engine starting circuit. This may cause fire, serious
personal injury or death.
• Check that the backup alarm (alarm buzzer when machine travels in reverse) works properly.
IN COLD WEATHER
• If the warm-up operation is not performed thoroughly, and the work equipment is operated, the reaction of
the work equipment to the operation of the control levers and pedals will be slow and the movement of it
may not be what the operator intended. Be sure to perform the warm-up operation. Particularly in a cold
weather, be sure the warming-up operation is completed.
• If the battery electrolyte is frozen, do not charge the battery or start the engine with a different power
source. There is a hazard that this will ignite the battery and cause the battery to explode.
Before charging or starting the engine with a different power source, melt the battery electrolyte and check
that there is no leakage of electrolyte before starting.
START ENGINE WITH JUMPER CABLES
If any mistake is made in the method of connecting the jumper cables, it may cause the battery to explode, so
always observe the following.
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SAFETY