Komatsu — 12.1 WALK AROUND CHECK

OPERATION 1. Check for damage, wear, or play in the work equipment, cylinders, linkage and 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 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 flammable material (dead leaves, twigs, grass, etc.) accumulated around the battery or high temperature engine parts, such as the 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 from transmission case, axle, 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 oil leakage from brake lines Check that there is no oil leakage. If any abnormality is found, repair the place where the oil is leaking. 6.

Check for damage or wear to tires, loose mounting bolts Check for cracks or peeling of tires and for cracks or wear to the wheels (side rim, rim base, lock ring). Tighten any loose wheel nuts. If any abnormality is found repair or replace the part. If any valve caps are missing, install new caps. 7. Check for damage handrail and steps, loose bolts Repair any damage and tighten any loose bolts. 8. 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. 9. Inspect engine cooling fan WARNING Personal injury can result from fan blade failure.

Never pull or pry the fan. This can damage the fan blade and cause failure. See the Maintenance Schedule for inspection instructions. 10. Check drive belt condition and tension See the Maintenance Schedule for inspection instructions. 2-25