MACHINE OPERATIONS AND CONTROLS OPERATION MACHINE OPERATIONS AND CONTROLS BEFORE STARTING ENGINE Walk-Around Checks 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. WARNING 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. Always check the items in this section before starting the engine each day. 1. 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. 2. Remove dirt from around engine, battery, and radiator. Check that there is no dirt accumulated around the engine or radiator. Check also that there are no flamma- ble materials (dry leaves, twigs, etc.) around the battery, engine muffler, or other high temperature parts of the engine.
If any dirt or flammable materials are found, remove them. 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 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. 5. Check for leakage of grease from grease piping Check that there is no leakage or oozing of grease. If any abnormality is found, repair it. 6. Check for abnormality in handrails, steps, loose bolts. If any abnormality is found, repair it.
Tighten any loose bolts. 7. Check for abnormality in handrails, steps, loose bolts. If any abnormality is found, repair it. Tighten any loose bolts. 8. 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. 9. Clean, check rear view mirror Check that there is no damage to the rear view mirror. If it is damaged, replace it with a new mirror. Clean the surface of the mirror and adjust the angle so that the area at the rear can be seen from the operator's seat. 10.
Seat belt option and mounting clamps Check that there is no abnormality in the seat belt or mounting clamps. If there is any damage, replace with new parts. 11. Check bucket with hook(if equipped) for damage. 3-34