OPERATION MACHINE OPERATIONS AND CONTROLS Electric Wiring - Inspect WARNING If the fuses frequently blowor if there are traces of short circuits on the electrical wiring, locate the cause immediately and carry out repairs, or contact your Komatsu distributor for repairs. If flammable materials (dead leaves, twigs, dry grass, etc.) accumulate around the battery, they will cause fire, so always remove such material immediately. 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 clean the breather hole.
Check that there is no damage to the fuses and that a fuse of the correct capacity is being used. Check that there are no disconnections or traces of short circuits on the electrical wiring. Check also that there are no loose termi- nals. Tighten any loose terminals. Be particularly careful to check the wiring of the battery, starting motor, and alternator. Always check also that there are no flammable materials accumulated around the engine. Remove any such flam- mable materials. Please contact your Komatsu distributor for advice on investigation and correction of the cause. Horn Function - Check 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. Water Separator (If Equipped) - Check/Drain The water separator separates water mixed in the fuel. If float (2) is at or above red line (1), drain the water according to the following procedure: 1. Loosen drain plug (3) and drain the accumulated water until the float reaches the bottom. 2. Tighten drain plug (3). 3. If the air is sucked into fuel line when draining the water, be sure to bleed air in the same manner as for the fuel fil- ter. See "Fuel Filter Cartridge - Replace (PAGE 4-63)". 3-41