PRECAUTIONS FOR MAINTENENCE SAFETY PRECAUTIONS FOR WORK UNDER MACHINE G If it is necessary to go under the work equipment or the machine to carry out service and maintenance, support the work equipment and machine securely with blocks and stands strong enough to support the weight of the work equipment and machine. G When carrying out work with the dump body raised, always stop the engine and use safety bar (1). Always be sure to set the dump body control pedal to the HOLD position. NOISE If the noise from the machine is too loud, it may cause temporary or permanent hearing problems.
When carrying out maintenance of the engine and you are exposed to noise for long periods of time, wear ear cov- ers or ear plugs while working. PRECAUTIONS WHEN USING HAMMER When using a hammer, pins may fly out or metal particles may be scattered. This may lead to serious injury. Always do as fol- lows. G If hard metal parts such as pins, or bearings are hit with a hammer, there is a hazard that pieces might be scattered and cause injury. Always wear safety goggles and gloves. G When hitting pins, there is a hazard that broken pieces might be sent flying and injure people in the surrounding area. Always check that there is no one in the surrounding area.
G If pins are hit with strong force, there is a hazard that the pin may fly out and injure people in the surrounding area. REPAIR WELDING Welding operations must always be carried out by a qualified welder and in a place equipped with a proper equip- ment. There is a hazard of fire or electrocution when carrying out welding, so never allow any unqualified person- nel to carry out welding. 2-36