Komatsu PC350LC-8, Operation & Maintenance Manual

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MACHINE OPERATIONS AND CONTROLS
OPERATION
3-120
MACHINE OPERATIONS AND CONTROLS 3
BEFORE STARTING ENGINE 3
Walk-around Checks 3
Before starting the engine, walk around the machine and look at the underside of chassis for anything unusual like
loose bolts and nuts, leakage of fuel, oil and coolant. Also check the condition of the work equipment and the
hydraulic system.
Also check for loose wiring, play, and collection of dust at places that reach high temperature.
WARNING
Remove any flammable materials from around the battery, engine, muffler, turbocharger, or other high
temperature engine parts.
Leakage of fuel or oil will cause the machine to catch fire. Check carefully, be sure to repair any problem,
or contact your Komatsu distributor.
Perform the following inspections and cleaning every day before starting engine for the day's work.
1. Check for damage, wear, play in work equipment, cylinders, linkage, hoses
Check for cracks, excessive wear, play in work equipment, cylinders, linkage, and hoses. If any problem is
found, repair it.
2. Remove dirt and debris from around the engine, battery, and radiator.
Check for dirt accumulated around the engine and radiator. Also check for flammable material (dry leaves,
twigs, etc.) around the battery, engine muffler, turbocharger, or other high temperature engine parts. If any dirt
or flammable materials are found, remove them.
For the method of removing dirt from the radiator, see “CLEAN AND INSPECT RADIATOR FINS, OIL
COOLER FINS, AFTERCOOLER FINS AND CONDENSER FINS (4-64)“.
3. Check for coolant and oil leakage around the engine
Check for oil leakage from the engine and coolant leaks from the cooling system. If any problem is found,
repair it.
4. Check for oil leakage from hydraulic equipment, hydraulic tank, hoses, and joints
Check for oil leakage. If any problem is found, repair the area where oil is leaking.
5. Check the undercarriage (track, sprocket, idler, guard) for damage, wear, loose bolts, or leakage of oil from
rollers.
If any problem is found, repair it.
6. Check for problems in handrails, steps, loose bolts.
If any problem is found, repair it. Tighten any loose bolts.
7. Check for problem in gauges, monitor.
Check for problem in the gauges and monitor in the operator's cab. If any problem is found, replace the parts.
Clean off any dirt from the surface.
8. Clean, check rear view mirror
Check that there is no damage to the rear view mirror. If it is damaged repair. 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.