OPERATION MACHINE OPERATIONS AND CONTROLS CHECK ELECTRIC WIRINGS G 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. G If flammable materials (dead leaves, twigs, dry grass, etc.) accumulate around the battery, they will cause fire, so always remove such material immediately. G 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 for damage and wrong capacity of the fuse and any sign of disconnection or short circuit in the electric wir- ing. Check also for loose terminals and tighten any loose parts. Check the wiring of the "battery", "starting motor" and "afternator" carefully in particular. When carrying out walk-around checks or checks before starting, always check if there is any accumulation of flammable material around the battery, and remove such flammable material. Please contact your Komatsu distributor for investigation and correction of the cause. CHECK FUNCTION OF HORN 1. Turn the starting switch to the ON position. 2. Confirm that the horn sounds without delay when the horn button is pressed.
If the horn does not sound, ask your Komatsu distributor for repair. CHECK FOR WATER AND SEDIMENT IN WATER SEPARATOR, DRAIN WATER 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. Open the pump room door. 2. Loosen drain plug (3) at the bottom of the filter case and drain the water from inside. 3. When red ring (1) goes down to the bottom of the case, tighten drain plug (3). Tightening torque: 2.9 to 3.9 N•m (0.3 to 0.4 kgf•m, 2.2 to 2.9 lbft) 4. Drain the water and sediment from the fuel tank. For details, see "DRAIN WATER AND SEDIMENT FROM FUEL TANK (PAGE 4-45)". 3-49 WARNING