OPERATION MACHINE OPERATIONS AND CONTROLS MACHINE OPERATIONS AND CONTROLS 0. BEFORE STARTING ENGINE 0. Walk-Around Checks 0. Before starting the engine, look around the machine and under the machine to check for loose nuts or bolts, or leakage of oil, fuel, or coolant, and check the condition of the work equipment and hydraulic system. Check also for loose wiring, play, and accumulation of dust at places which reach high temperatures. Remove any flammable materials from around the battery or engine muffler or other high temperature engine parts. Leakage of fuel or oil will cause the machine to catch fire.
Check carefully, and be sure to repair any abnormalities, or please contact your Komatsu distributor. If the machine is at an angle, make it horizontal before checking. Always check the items in this section before starting the engine each day. 1. Check sensors for damage Check the sensors for damage. If any abnormality is found, please contact your Komatsu distributor for service or repair. 2. Check for damage, wear, play in work equipment, cylinders, linkage, hoses Check that there are no cracks, excessive wear, or play in the work equipment, cylinders, linkage, or hoses. If any abnormality is found, repair it. 3.
Remove dirt and dust from around engine, battery, and radiator Check that there is no dirt or dust accumulated around the engine or radiator. Check also that there is no flam- mable material (dry leaves, twigs, etc.) accumulated around the engine muffler or high temperature parts of the engine, or around the battery. Remove all dirt, dust, and flammable materials. 4. Remove debris piled between boom and engine cover The clearance between the boom and the engine cover is a spot where dust and debris easily piles up. Be sure to remove it whenever it has piled up. If the boom is operated with debris piled up, the hydraulic hoses or the engine cover may be damaged. 5.
Check for leakage of water or oil around engine Check that there is no leakage of oil from the engine or leakage of water from the cooling system. If any abnor- mality is found, repair it. 6. Check for oil leakage from hydraulic equipment, hydraulic tank, hoses, joints Check that there is no oil leakage. If any abnormality is found, repair the place where the oil is leaking. 7. Check the undercarriage (track, sprocket, idler, guard) for damage, wear, loose bolts, or leakage of oil from roll- ers. If any abnormality is found, repair it. 8. Check for abnormality in handrails, steps, loose bolts. If any abnormality is found, repair it. Tighten any loose bolts. 9.
Check for abnormality in gauges, monitor, loose bolts. Check that there is no abnormality in the gauges and monitor in the operator's cab. If any abnormality is found, replace the parts. Clean off any dirt on the surface. 3-31 WARNING