Precautions for Operation Be careful not to mistakenly travel too close to the edge of a cliff. Use the machine only for its main purpose. Using it for other purposes will cause failures. To ensure a good view, always do the following: When working in dark areas, attach working lights and front lights to the machine. If necessary, set up lighting at the work site. Stop operations when the visibility is poor, such as in fog, mist, snow, and rain. Wait for the visibility to improve to a level which causes no problems for the operation. To avoid hitting the work equipment, always do the following:
When working in tunnels, on bridges, under electrical wires, or when parking the machine or carrying out other operations in places with limited height, be careful not to hit the bucket or other parts. To prevent collisions, operate the machine at a safe speed when working in confined spaces, indoors, or in crowded areas. Do not pass the bucket over the heads of workers or over the operator's cabin of dump truck. Figure 23 FG000430 Avoid High Voltage Cables Serious injury or death can result from contact or proximity to high-voltage electrical lines. The bucket does not have to make physical contact with power lines for current to be transmitted.
Use a spotter and hand signals to stay away from power lines not clearly visible to the operator. FG000171 Figure 24 Use these minimum distances as a guideline only. Depending upon the voltage in the line and atmospheric conditions, strong current shocks can occur with the boom or bucket as faraway as 4 - 6 m (13 - 20 ft.) from the power line. Very high voltage and rainy weather could further decrease that safety margin. NOTE: Before starting any operation near power lines (either aboveground or buried cable type), you should always contact the power utility company directly and work out a safety plan with them.
OP001759 1-31 Safety Voltage Minimum Safe Distance 6.6 kV 3 m (9' 10") 33.0 kV 4 m (13' 1") 66.0 kV 5 m (16' 5") 154.0 kV 8 m (26' 3") 275.0 kV 10 m (32' 10")