8. PRECAUTIONS FOR MAINTENANCE ¤ WARNING: For reasons of safety, always follow these safety precautions. 1-22 SAFETY DEVICES FOR WORK EQUIPMENT When carrying out inspection and maintenance with the work equipment raised, fit stand securely to the boom to prevent the work equipment from coming down. Place the work equipment control levers at hold, and set safety lock lever to the lock position. A0055140 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”.