MAINTENANCE 18.2 OUTLINE OF ELECTRIC SYSTEM If the wiring gets wet or the insulation is damaged, the electric system leaks and this could result in hazardous malfunction of the machine. Services relating to the electric system are (1) check of fan belt tension, (2) check of damage or wear in the fan belt and (3) check of battery fluid level. Never remove or disassemble any electric components installed in the machine. Never install any electric components other than those specified by Komatsu. Be careful to keep the electric system free of water when washing the machine or when it rains.
When working on the seashore or any corrosive environment, carefully clean the electric system to prevent corrosion. When installing a cab cooler or any other electrical equipment, connect it to an independent power source connector. The optional power source must never be connected to the fuse, starting switch, or battery relay. 3-8 WA320-3MC