. SAFETY PRECAUTIONS FOR MAINTENANCE NOISE 2 - 32 When carrying out maintenance of the engine and you are exposed to noise for long pe riods of time, wear ear covers or ear plugs while working. If t he noise from the machine i s too loud, it may cause temporary or permanent heari PRECAUTIONS WHEN USING H AMMER When using a hammer, pins m ay fly out or metal particles may be scattered. This may lead to se rious injury. Always do as follows If hard metal parts such as p ins, bucket teeth, cutting edges, or bearings are hit with a ham might be scattered and caus mer, there is a hazard that pieces e serious personal injury. Always ves.
wear safety glasses and glo When hitting pins or bucket t eeth, there is a hazard that broken pieces might be sent flying a nd injure people in the surrounding area. Always check that ther e is no one in the surroundingarea There is a hazard that the pi n hit with strong force may fly out and injure people in REPAIR WELDING Welding operations must alway s be carried out by a qualified weld er and in a place equ ipped with proper equipment There is a hazard of gas, fire, o r electrocution when carrying out w elding, so never all ow any unqualified personne to carry out welding.
REMOVING BATTERY TERMINA L When repairing the electrical sy stem or when carrying out electric al welding, remove t he negative (-) terminal of the battery to prevent the flow of c urrent. PRECAUTIONS WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSIO Grease is pumped into the track tension adjustment system under high pressure. If the sp ecified procedure for maintenance is not followed when making adjustment, grease drain valve (1) may fly out and cause serio us injury or damage. When loosening grease drai n valve (1) to loosen track tension never loosen it more than on e turn. In doing so, loosen the valve slowly.
Never put your face, hands, feet, or any other part of your body directly in front of grease dra