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OPERATION
REMARK
The smell of the exhaust gas is different from that of the conventional diesel engine because of the exhaust
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gas purification function.
White smoke may be discharged for a short time just after the engine is started or during the KDPF regenera-
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tion in the cold season, but this is not trouble.
BREAKING-IN THE NEW MACHINE
BREAK-IN THE NEW MACHINE:PC-0000-138K00A
NOTICE
Your Komatsu machine has been thoroughly adjusted and tested before shipment from the factory. How-
ever, operating the machine under full load before breaking in the machine may adversely affect the per-
formance and shorten the machine life.
Be sure to break in the machine for the initial 100 hours (as indicated on the service meter).
Make sure that you fully understand the descriptions in this manual, and pay attention to the following points when
breaking in the machine.
Run the engine at idle for 15 seconds after starting it. During this time, do not operate the control levers or fuel
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control dial.
Warm up the engine for five minutes after starting it up.
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Avoid operation with heavy loads or at high speeds.
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Immediately after starting the engine, avoid sudden starts, sudden acceleration, unnecessary sudden stops,
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and sudden changes in direction of the machine.
ENGINE WARM-UP OPERATION
ENGINE WARM-UP OPERATION:PC220_KU-0000-139K00A
NOTICE
Do not accelerate the engine suddenly until the warm-
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up operation is completed.
Do not run the engine at low idling or high idling under
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no load for more than 20 minutes. This will have an
adverse effect on the environment, and will also have
an adverse effect on the internal structure of the
engine. If it is necessary to run the engine at idling for
more than 20 minutes, apply a load from time to time or
run at a mid-range speed.
After the engine starts, do not start operating the machine immediately. First, carry out the following operations
and checks.
MACHINE OPERATIONS AND CONTROLS
3–167
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