f. CHECK DUST INDICATOR When the air cleaner element is clogged, the red piston of dust indicator (1) reaches the service level and gets locked. In that case, clean the element, referring to the section “WHEN REQUIRED”. After cleaning the element, push the button to return the red piston. g. CHECK ELECTRIC WIRINGS Check for damage of the fuse and any sign of disconnection or short cir- cuit in the electric wiring. Check also for loose terminals and tighten any loose parts. Check the following points carefully. 0 Battery 0 Starting motor 0 Alternator A If the fuse is damaged or there is any sign of shortcircuiting in the elec- tric wiring, always investigate the cause and correct it.
t Please contact your Komatsu distributor for investigation and correction of the cause. A Accumulation of flammable material (dead leaves, twigs, grass, etc.) around the battery may cause fire, so always check and remove such material. 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. h. LUBRICATE CLAMSHELL BUCKET (except PC300,3OOLC-5 MIGHTY) Apply grease to the grease fitting shown by the arrows. (12 points) i. CHECK FOR SEDIMENT AND WATER IN THE WATER SEPARATOR The water separator separates water mixed in the fuel.
If float (2) is at or above red line (I), drain the water. For the draining procedure, see section “WHEN REQUIRED”. Sr Even if a water separator is installed, be sure to check the fuel tank to remove water and sediment in the fuel. - 54 -