WARNING: Failure to follow these safety precautions may lead to a serious accident. 8. PRECAUTIONS FOR MAINTENANCE 1-29 DO NOT DROP TOOLS OR PARTS INSIDE MACHINE ‡ When opening the inspection window or tank oil filler to carry out inspection, be careful not to drop any nuts, bolts, or tools inside the machine. If such parts are dropped into the machine, it will cause breakage of the machine, mistaken operation, and other failures. If you drop any part into the machine, always be sure to remove it from the machine. ‡ When carrying out inspection, do not carry any unnecessary tools or parts in your pocket.
PRECAUTIONS WHEN USING HAMMER When using a hammer, always wear safety glasses, safety helmet, and other protective clothing, and put a brass bar between the hammer and the part being hammered. If hard metal parts such as pins, edges, teeth or bearings are hit with a hammer, there is danger that broken pieces might fly into your eyes and cause injury. REPAIR WELDING Welding operations must always be carried out by a qualified welder and in a place equipped with a proper equipment. Gas is generated, and there is danger of fire or electrocution when carrying out welding, so never allow any unqualified personnel to carry out welding. The qualified welder must follow the precautions given below.
‡ Disconnect the battery terminals to prevent explosion of the battery. ‡ Remove the paint from the place being welded to prevent gas from being generated. ‡ If hydraulic equipment or piping, or places close to these are heated, flammable vapor or spray will be generated, and there is danger of this catching fire, so avoid applying heat to such places. ‡ If heat is applied directly to rubber hoses or piping under pressure, they may suddenly burst, so cover them with fireproof sheeting. ‡ Always wear protective clothing. ‡ Ensure that there is good ventilation. ‡ Clear up any flammable materials, and make sure that there is a fire extinguisher at the workplace.
PRECAUTIONS WITH BATTERY ‡ When repairing the electrical system or when carrying out electrical welding, remove the negative - terminal of the battery to stop the flow of current. Handling battery © see “16.3 IF BATTERY IS DISCHARGED”. A0055170