7. PRECAUTIONS DURING OPERATION WARNING: Failure to follow these safety precautions may lead to a serious accident. TRAVELING ON SLOPES Traveling on slopes could result in the machine tipping over or slipping to the side. Do not turn on slopes or travel across slopes. Always go down to a flat place to perform these operations. Do not travel on grass, fallen leaves, or wet steel plates. Even slight slopes may cause the machine to slip to the side, so travel at low speed and make sure that the machine is always traveling directly up or down the slope. When traveling downhill, use the retarder brake to reduce speed. Do not turn the steering wheel suddenly.
When traveling downhill, do not use the foot brake except in an emergency. Retarder brake © See “12.6.1 BRAKE PERFORMANCE GRAPH”. If the engine should stop on a slope, apply the brakes fully and apply the parking brake also to stop the machine. 1-11 PRECAUTIONS WHEN OPERATING ‡ Be careful not to approach too close to the edge of cliffs. ‡ Carry out only work that is specified as the purpose of the machine. Carrying out other operations will cause breakdowns. ‡ Do the following to ensure good visibility. • When operating in dark places, turn on the working lamps and front lamps, and install lighting at the jobsite if necessary.
• Do not carry out operations in fog, mist, snow, or heavy rain, or other conditions where the visibility is poor. Wait for the weather to clear so that visibility is sufficient to carry out work. ‡ Always do the following to prevent the work equipment from hitting other objects. • When operating in tunnels, under bridges, under electric wires, or other places where the height is limited, be extremely careful not to let the dump body hit anything and lower the dump body completely before driving the machine.
• To prevent accidents caused by hitting other objects, always operate the machine at a speed which is safe for operation, particularly in confined spaces, indoors, and in places where there are other machines.