12. OPERATION 12.1 CHECKS BEFORE STARTING ENGINE / A WARNING 1 12.1.1 WALK AROUND CHECK Dirt, oil or fuel around the parts of the engine which reach hrgh temperatures may cause fire and damage to the machine. Check carefully, and if any abnormality is found, always 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 leakage 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. 1.
Check for Damage, Wear, And/or 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, Radiator. Check that there is no dirt accumulated around the engine or radiator. If any dirt is found, remove it. 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 Torque Converter, Transmis- sion, Rear Main Frame Housing, Final Drives, 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 the Undercarriage (Track, Sprocket, Idler, Guard) for Damage, Wear, Loose Bolts, or Leakage of Oil from Rollers. 6. Check for Damage to Handrail. Repair any damage and tighten any loose connections. 7. Check for Damage to Gauges, Lamps on Instrument Panel. Check that there is no damage to the panel, gauges and lamps. If any abnormality is found, replace the parts. Clean off any dirt on the surface. 8.
Check for Damage to Seat Belt and Mounting Areas. Check that there is no abnormality in the seat belt or mounting areas. If there is any damage, replace with new parts. 2-22