Komatsu HD325-8, Operation & Maintenance Manual

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METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE
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WARNING
• For any emergency condition, park the machine on solid level ground.
• If engine does not stop, use the shutdown secondary switch to stop the engine.
• Stay away from the exhaust pipe outlet to prevent injury.
• Keep flammable materials away from the exhaust pipe to avoid fire.
METHOD FOR CANCELING TO HOLD DUMP BODY
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WARNING
If HOLD is canceled when the dump body is raised, the body will go down under its own weight. This is
very dangerous.
Always lower the dump body before stopping the engine.
If the engine is stopped, the body will stay in “HOLD” condition, regardless of the position of the dump lever.
If the engine is started in this condition, the dump body float caution lamp will light up.
Return the dump control lever to “HOLD” position, then move it to “FLOAT” position to cancel the dump body
“HOLD” condition.
When the dump body is set to “FLOAT” condition, the body float caution lamp will go out.
METHOD FOR CHECKING STARTING CONDITION AND UNUSUAL NOISE OF
ENGINE
• When starting the engine, check that the engine causes no abnormal noise and that it starts up easily and
smoothly.
• Check that there is no abnormal noise when the engine is idling or when the engine speed rises slightly.
When there is an abnormal noise at the engine startup and if that condition continues, the engine may be dam-
aged. In that case, ask your Komatsu distributor to check the engine as soon as possible.
METHOD FOR CHECKING LOW-SPEED RUN AND ACCELERATION OF ENGINE
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CAUTION
• Perform these checks in a safe place, watching out for danger in the surroundings.
• When the engine performs very badly at low idle and in the acceleration and if that condition contin-
ues, it may damage the engine or confuse the operator's sense of driving or lower the braking effi-
ciency, and as a result lead to an unexpected accident. In that case, ask your Komatsu distributor to
check the engine as soon as possible.
• When stopping the machine during the normal traveling operation, check that the engine does not hunt or
stop suddenly.
• When the accelerator pedal is depressed, check that the engine speed rises smoothly.
REMARK
• The smell of the exhaust gas is different from that of the conventional diesel engine because of the exhaust
gas filtering function.
• White smoke may be discharged for a short time immediately after the engine is started or during the after-
treatment devices regeneration in the cold season, but this is not a failure.
OPERATION MACHINE OPERATIONS AND CONTROLS
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