. SAFETY GENERAL PRECAUTIONS SAFETY GENERAL PRECAUTIONS SAFETY GENERAL PRECAUTIONS Even going close to high-voltage cables can cause electric shock, which may cause serious burns or even death. Always maintain a safe distance (see the table on the right) between the machine and the electric cable. Check with the local power company about safe operating procedure before starting operations. To prepare for any possible emergencies, wear rubber shoes and gloves. Lay a rubber sheet on top of the seat, and be careful not to touch the chassis with any exposed part of your body. Use a signalman to give warning if the machine approaches too close to the electric cables.
When carrying out operations near high voltage cables, do not let anyone come close to the machine. If the machine should come too close or touch the electric cable, to prevent electric shock, the operator should not leave the operator's compartment until it has been confirmed that the electricity has been shut off. Also, do not let anyone come close to the machine. 66,000 V Over 4 m (14 ft) ENSURE GOOD VISIBILITY Check for any persons or obstacles in the area around the machine and check the conditions of the jobsite to ensure that operations and travel can be carried out safely. Always do as follows.
Position a signalman if there are areas at the rear of the machine where the visibility is not good. When working in dark places, turn on the working lamp and front lamps installed to the machine, and set up additional lighting in the work area if necessary. Stop operations if the visibility is poor, such as in mist, snow, rain, or dust. VENTILATION FOR ENCLOSED AREAS Exhaust fumes from the engine can kill. If it is necessary to start the engine within an enclosed area, or when handling fuel, flushing oil, or paint, open the doors and windows to ensure that adequate ventilation is provided to prevent gas poisoning.
CHECKING SIGNALMAN'S SIGNALS AND SIGNS Set up signs to inform of road shoulders and soft ground. If the visibility is not good, position a signalman if necessary. Operators should pay careful attention to the signs and follow the instructions from the signalman. Only one signalman should give signals. Make sure that all workers understand the meaning of all signals and signs before starting work. EMERGENCY EXIT FROM OPERATOR'S CAB Machines equipped with a cab have doors on the left and right sides. If the door on the one side does not open, escape from the door on the other side.
2 - 17 Voltage of Cables Safety Distance 100 V - 200 V Over 2 m (7 ft) 6,600 V Over 2 m (7 ft) 22,000 V Over 3 m (10 ft) 154,000 V Over 5 m (17 ft) 187,000 V Over 6 m (20 ft) 275,000 V Over 7 m (23 ft) 500,000 V Over 11 m (36 ft)