OPERATION MACHINE OPERATIONS AND CONTROLS Check Electric Wiring If fuses are frequently blown or if there are traces of short-circuiting on the electrical wiring, promptly ask your Komatsu distributor to locate the cause and make the repair. Keep the top surface of the battery clean and check the breather hole in the battery cap. If it is clogged with dirt or dust, wash the battery cap to clear the breather hole. Check that there is no damage to the fuses; that fuses of the specified capacity are used; that there is no discon- nection or trace of short-circuiting on the electric wiring and no damage to the covering. Check also that there is no loosened terminals. If any, tighten them.
Moreover, pay particular attention to the electric wiring when checking the battery, engine starting motor and alter- nator. Be sure to check that there is no inflammable material accumulated around the battery. If present, remove it as soon as possible. Check Function of Horn 1. Turn the starting switch to the ON position. 2. Confirm that the horn sounds immediately when the horn button is pressed. If the horn does not sound, please contact your Komatsu distributor for repair. 3-63 CAUTION