Komatsu PC290LC-6K Operation & Maintenance Manual page 34

Hydraulic excavator
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8. PRECAUTIONS FOR OPERATION
STOP THE ENGINE BEFORE CARRYING OUT INSPECTION
AND MAINTENANCE
• Always stop the machine on firm flat ground and stop the engine before carrying out inspection and main-
tenance.
• If it is necessary to run the engine when carrying out maintenance, such as when cleaning the inside of the
radiator, place the safety lock lever at the LOCK position and carry out the operation with two workers.
• One worker should sit in the operator's seat so that he can stop the engine immediately if necessary. He
should also be extremely careful not to touch any lever by mistake. Touch the levers only when they have to
be operated.
• The worker carrying out the maintenance should be extremely careful not to touch or get caught in the
moving parts.
RULES TO FOLLOW WHEN ADDING FUEL OR OIL
• Spilt fuel and oil may cause you to slip, so always wipe it up immediately.
• Always tighten the cap of the fuel and oil fillers securely.
• Never use fuel for washing any parts.
• Always add fuel and oil in a well-ventilated place.
1-22
WARNING: For reasons of safety, al-
ways follow these safety precautions.

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