OPERATION OPERATION OPERATION CHECK BEFORE STARTING ENGINE, ADJUST WALK-AROUND CHECK Leakage of oil or fuel, or accumulation of flammable material around high temperature parts, such as the engine muffler or turbocharger, may cause fire. Check carefully, and if any abnormality is found, repair it or contact your Komatsu distributor. Before starting the engine, look around the machine and under the machine to check for loose nut or bolts, or leak- age of oil, fuel, or coolant, and check the condition of the work equipment and hydraulic system. Check also for loose wiring, play, and collection of dust at places which reach high temperatures.
Always carry out the items in this section before starting the engine each day. 1. Check for damage, wear, play in dump body, cylinders, linkage, hoses Check that there are no cracks, excessive wear, or play in the dump body, cylinders, linkage, or hoses. If any abnormality is found, repair it. 2. Remove dirt and dust from around engine, battery radiator Check if there is any dirt or dust accumulated around the engine or radiator. Check also if there is any flam- mable material (dead leaves, twigs, grass, etc.) accumulated around the battery or high temperature engine parts, such as the engine muffler or turbocharger. Remove all such dirt or flammable material. 3.
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 abnormality is found, repair it. 4. Check for oil leakage of oil from hydraulic equipment, hydraulic tank, hose, joints Check that there is no oil leakage. If any abnormality is found, repair the place where the oil is leaking. 5. Check the undercarriage (track, sprocket, idler, guard) for damage, wear, loose bolts, or leakage of oil from rollers If any damage, wear, or oil leakage is found, repair the problem and tighten the bolts. 6. Check for damage to handrail, loose bolts Repair any damage and tighten any loose. 7.
Check for damage to gauges, monitor, loose bolts Check that there is no damage to the gauges and monitor in the operator’s cab. If any abnormality is found, replace the parts. Clean off any dirt on the surface. 8. Check for damage or displaced window Check that there is no damage or displacement of the window. If any damage is found, replace with a new part. If the window comes out of position or breaks during operations, do not continue operations. Stop immediately and repair the window. 3-32 WARNING