12. OPERATION CHECK DUST INDICATOR 1. Open the engine side cover on the right side of the chassis, check that the red piston has not appeared in the transparent portion of dust indicator 1 . 2. If the red piston has appeared, clean or replace the element immediately. For details of the method of cleaning the element, see “24.2 WHEN REQUIRED”. 3. After checking, cleaning, and replacing, press the knob of dust indicator 1 to return the red piston to its original position. CHECK ELECTRIC WIRINGS ¤ WARNING If fuses are frequently blown or if there are traces of short circuit on the electrical wiring, locate the cause and carry out repair.
Accumulation of flammable material (dead leaves, twigs, grass, etc.) around the battery may cause fire, so always check and remove such material. 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 wiring. Check also for loose terminals and tighten any loose parts. Check the wiring of the “battery”, “starting motor” and “alter- nator” 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. 2-40