Komatsu — 7.5 KEEPING THE MACHINE CLEAN

PRECAUTIONS TO BE TAKEN DURING MAINTENANCE 7.3 PERSONAL PRECAUTIONS Maintenance must only be performed by trained and authorised personnel. Each person performing maintenance must be instructed to adopt specific personal precautions when performing grinding or welding operations and when using heavy mallets or hammers. When fitting equipment or cylinder link pins, use soft materials such as wood or plastic to check the alignment of the holes. Never use your fingers. These could easily be severed by unexpected movement. 7.4 EQUIPMENT When not in use on the machine, special and standard equipment must be stored safely and in such a way that it cannot fall and cause injury.

When equipement needs to be installed or dis- mantled ensure that cables and lifting hooks are in a good state of repair and that their size cor- respond to the weight they will lift. S00023 7.5 KEEPING THE MACHINE CLEAN Smears of oil and grease, loose tools, and loose components can cause people to slip, stumble, and fall. Always keep the machine and the work area clean and tidy. Use a jet of hot water or steam in conjunction with a proprietary detergent to clean the machine. Do not use diesel, petrol, or solvents. Fuels leave an oily film which attracts dust. Solvents (even weak ones) can damage the paint-work and favour the formation of rust.

S00024 If jets of water penetrate electrical components, they can not only oxidise the contacts and prevent starting, but can even cause the engine to start unexpectedly. For this reason never use jets of water or steam on sensors or switches, or inside the cab. 22