Komatsu — DURING MAINTENANCE

SAFETY PRECAUTIONS FOR MAINTENANCE WARNING: Failure to follow these safety precautions may lead to a serious accident. G If water gets into the electrical system, there is danger that the machine may not move or may move unexpectedly. Do not use water or steam to clean the sensors, connectors, or the inside of the operator’s compartment. PRECAUTIONS WITH BATTERY G When repairing the electrical system or when carrying out electrical welding, remove the negative (-) terminal of the bat- tery to stop the flow of current. HANDLING HIGH-PRESSURE HOSES G Do not bend high-pressure hoses or hit them with hard objects. Do not use any bent or cracked piping, tubes or hoses. They may burst during use.

G Always repair any loose or broken fuel hoses or oil hoses. If fuel or oil leaks, it may cause a fire. PRECAUTIONS WITH HIGH PRESSURE OIL G Do not forget that the work equipment circuits are always under pressure. G Do not add oil, drain oil, or carry out maintenance or inspec- tion before completely releasing the internal pressure. G If oil is leaking under high pressure from small holes, it is dan- gerous if the jet of high-pressure oil hits your skin or enters your eyes. Always wear safety glasses and thick gloves, and use a piece of cardboard or a sheet of wood to check for oil leakage.

A0055180A G If you are hit by a jet of high-pressure oil, consult a doctor immediately for medical attention. A055190A PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT HIGH TEMPERATURE OR HIGH PRESSURE G Immediately after stopping operations, the engine cooling water and oil at all parts is at high temperature and under high pressure. In this condition, if the cap is removed, or the oil or water are 39