8. PRECAUTIONS FOR MAINTENANCE ¤ WARNING: For reasons of safety, always follow these safety precautions. 1-28 PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT HIGH TEMPERATURE Immediately after stopping operations, the engine coolant, oil at all parts, the exhaust manifold, and the muffler are at high temperature. In this condition, if the cap is removed, or the oil is drained, or the filters are replaced, this 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 level, oil level in hydraulic tank © see “24.3 CHECK BEFORE STARTING”. Checking lubricating oil level, adding oil © see “24.4-6 PERIODIC MAINTENANCE”. Changing oil, replacing filters © see “24.7-8 PERIODIC MAINTENANCE”. A0055050 HIGH TEMPERATURE CHECKS AFTER INSPECTION AND MAINTENANCE Failure to carry out inspection and maintenance fully, or failure to check the function of various maintenance locations may cause unexpected problems and may even lead to personal injury or damage, so always do as follows. ‡ Checks when engine is stopped • Have all the inspection and maintenance locations been checked? • Have all the inspection and maintenance items been carried out correctly?
• Have any tools or parts dropped inside the machine? It is particularly dangerous if they get caught in the lever linkage. • Has water and oil leakage been repaired? Have bolts been tightened? ‡ Checks when engine is running For details of checks when the engine is running, see “8.2 DURING MAINTENANCE, MAINTE- NANCE WITH ENGINE RUNNING”, and be extremely careful to ensure safety. ‡ Do the inspection and maintenance locations work normally? ‡ Is there any oil leakage when the engine speed is raised and load is applied to the hydraulic system? WASTE MATERIALS To prevent pollution, particularly in places where people or animals are living, always follow the procedures given below.
‡ Never dump waste oil in a sewer system, rivers, etc. INCORRECT ‡ Always put oil drained from your machine in containers. Never drain oil directly onto the ground. ‡ Obey appropriate laws and regulations when disposing of harmful objects such as oil, fuel, coolant, solvent, filters, and batteries. A0055220