MACHINE OPERATIONS AND CONTROLS OPERATION
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MACHINE OPERATIONS AND CONTROLS 3
BEFORE STARTING ENGINE 3
Walk-around Checks 3
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 in places which reach high temperatures.
WARNING
Remove any flammable materials from around the battery or engine muffler, turbocharger, 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.
Carry out the following inspections and cleaning every day before starting the engine for the day's work.
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 hose. If
any abnormality is found, repair it.
2. Remove the dirt from around the engine, battery, and radiator.
Check that there is no dirt accumulated around the engine or radiator. Check also that there is no flammable
material (dry leaves, twigs, etc.) around the battery, engine muffler, turbocharger, 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 coolant 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 the undercarriage (track, sprocket, idler, guard) for damage, wear, loose bolts, or leakage of oil from
rollers.
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.
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