¤ WARNING: Failure to follow these safety precautions may lead to a serious accident. 8. PRECAUTIONS FOR MAINTENANCE 1-37 PRECAUTIONS WITH HIGH-PRESSURE OIL When inspecting or replacing high-pressure piping or hoses, check that the pressure has been released from the circuit. Failure to release the pressure may lead to serious injury. Always do as follows. ‡ For details of the method of releasing the pressure: see “INSPECTION AND MAINTENANCE WITH ENGINE STOPPED”. Do not carry out any inspection or replacement operation before the pressure has been completely removed. ‡ Wear protective glasses and leather gloves.
‡ If there is any leakage from the piping or hoses, the piping and hoses and the area around them will be wet, so check for cracks in the piping or cracks or swelling in the hoses. If it is difficult to find the location, please contact your Komatsu distributor. ‡ If oil is leaking under high pressure from small holes, it is dangerous if it hits your skin or enters your eyes. It may make holes in your skin or cause blindness. If you are hit by a jet of high-pressure oil and suffer serious injury to your skin or eyes, wash off the oil with large amounts of water, then consult a doctor immediately for medical attention.
INCORRECT CORRECT A0055180 A0055190 PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT HIGH TEMPERATURE ‡ Immediately after stopping operations, the engine coolant, oil at all parts, and the exhaust manifold and muffler are at high temperature. In this condition, if the cap is removed, or the oil or water is drained, or the filters are replaced, it may result in burns or other injury. Wait for the temperature to go down, then carry out the inspection and maintenance in accordance with the procedures given in this manual. Cleaning inside of cooling system © See “24.2 WHEN REQUIRED”. Checking coolant, hydraulic tank oil level © See “24.3 CHECK BEFORE STARTING”.
Checking lubricating oil level, adding oil © See “24.3 CHECK BEFORE STARTING”. – “24.7 EVERY 500 HOURS SERVICE”. Changing oil, replacing filters © See “24.5 EVERY 100 HOURS SERVICE”. – “24.8 EVERY 1000 HOURS SERVICE”. A0055050