. 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 near 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 near the machine.
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) 66,000 V Over 4 m (14 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) 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. 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. 2 - 18 WORKING ON LOOSE GROUN D your machine too close to the edge of cliffs, overhangs, and deep ditches. The Avoid traveling or operating the deep ditches groun d ma y be w eak in suc h areas. I f the ground should collapse under the weight or vibration of the machine, there is a h azard t hat the machine ma y fall or ti p over. Remember t hat the soil after he avy rain or bl asting or after earthquake s is we ak in t hes e areas. When working on embankments or n ear excavated di tches, t here i s a hazard that the weight and vi bration of the machine wi ll caus e the s oil t o collaps e.
Before startin g operations , take steps to ens ure that the g round is safe and to prevent the machine from roll ing over o r fallin g. DISTANCE TO HIGH VOLTAGE CABLES Do not tr avel o r oper ate the machine ne ar electric cables . There is a hazar d of e lectric shoc k, w s w hich may here the ollows. cause s erious personal injury or deat h. On jobsite machine electric cable s, alwa ys do as f Befor e starting wo rk nea r electric cab les, inform the lo cal power company o f the w ork to be p erformed , and ask them t o take t he necessary action.