8. PRECAUTIONS FOR MAINTENANCE WARNING: Failure to follow these safety precautions may lead to a serious accident. 1-23 PROPER TOOLS Use only tools suited to the task. Using damaged, low quality, faulty, or makeshift tools could cause personal injury. Broken pieces of chisels or hammers could fly into your eyes and blind you. Tools © See “21.1 INTRODUCTION OF NECESSARY TOOLS”. A0055120 PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS Hoses and other parts of the fuel, hydraulic, and brake system are critical parts for ensuring safety, so they must be replaced periodically. Replacement of safety critical parts requires skill, so please ask your Komatsu distributor to carry out replacement.
‡ Replace these components periodically with new ones, regardless of whether or not they appear to be defective. These components deteriorate over time, and can cause fire because of oil leakage or failure in the work equipment system. ‡ Replace or repair any such components if any defect is found, even though they have not reached the time specified. Replacement of safety critical parts © See “22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS”. USE OF LIGHTING ‡ When checking fuel, oil, or battery electrolyte, always use lighting with anti-explosion specifica- tions. If such lighting equipment is not used, there is danger of explosion.
‡ If work is carried out in dark places without installing lighting, there is danger of injury, so always install proper lighting. ‡ Even if it is dark, do not use a lighter or flame instead of lighting. There is danger of starting a fire, and if the battery gas ignites, it may cause an explosion. ‡ When using the machine as the power supply for the lighting, follow the instructions in this Operation and Maintenance Manual. A0055160