Komatsu — 8.1 BEFORE CARRYING OUT MAINTENANCE

WARNING: Failure to follow these safety precautions may lead to a serious accident. SAFETY Use only tools suited to the task. Using damaged, low quality, faulty, or makeshift tools could cause personal injury. Tools Replace the following safety-related and fire-related components periodically: Fuel system: Fuel hose, spilling hose, and fuel tube cap Hydraulic system: Pump outlet hose, and front and rear pump branch hoses Replace these components periodically with new ones, regardless of whether or not they appear to be defective. These components deteriorate over time. Replace or repair any such components if any defect is found, even though they have not reached the time specified.

Special skills and/or equipment may be required, so contact your Komatsu distributor. Replacement of safety critical components CRITICAL PARTS” on page 3-19. Use lighting with anti-explosion specifications, especially when checking fuel, oil, battery electrolyte, window washer fluid or other flammable materials. If correct lighting is not used, danger of explosion exists. Areas with insufficient lighting have increased risk of injury. Install proper lighting. Never use open flame (e.g. cigarette lighter) for illumination. Flammable liquids and gases near the machine can ignite. When using the machine as the power supply for the lighting, follow the instructions in this manual.

WA450-3MC 1-27 PROPER TOOLS PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS USE OF LIGHTING