Komatsu PC118MR-8, Operation And Maintenance Manual

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FUNCTIONING
USE OF THE MACHINE AND RELATED CONTROLS
3-109
USE OF THE MACHINE AND RELATED CONTROLS 3
BEFORE STARTING THE ENGINE 3
Visual checks 3
Before starting the engine, look around the machine and under the machine to check for loose nuts or bolts, oil,
fuel or coolant leakages, and check the conditions of the work equipment and the hydraulic system. Check also for
loose wires, excessive gaps, and accumulation of dust in places that reach high temperatures.
WARNING
q
When carrying out checks or maintenance operations inside the engine hood or the side cover, make
sure that they are completely open and secure them with a suitable retainer.
q
Immediately remove any flammable materials that may have accumulated around the battery, the
exhaust silencer or other hot parts of the engine. Any oil or fuel leaks may cause fire in the machine.
Always carry out accurate controls and repair the possible failures; if they repeat, contact the
Komatsu distributor.
q
Carry out this check with the machine parked on level ground. If the machine is inclined, position it
horizontally before carrying out the check.
Carry out the following inspection and cleaning operations every day before starting the engine.
1. Check the work equipment, the cylinders, the articulations and the pipes for damage, wear, excessive play. If
any anomaly is observed, provide for the necessary repairs.
2. Remove dust and dirt from the areas around the engine, battery and radiator. Make sure that no dirt or dust
has accumulated around the engine or radiator. Check also that there is no flammable material (dry leaves,
twigs, etc.) accumulated around the exhaust silencer, the hot parts of the engine or around the battery.
Remove all dirt, dust, and flammable materials.
3. Carefully check for the presence of dust, in particular
between the exhaust silencer and the relevant cover.
4. To remove dust and dirt accumulated in the radiator fins, see "CLEANING AND INSPECTION OF THE
RADIATOR FINS, OIL COOLER, FINAL COOLER, FUEL AND AIR CONDITIONER CONDENSER COOLER
(4-64)".
5. Check for water or oil leaks around the engine. Make sure there are no oil leaks from the engine or water leaks
from the cooling system. If any anomaly is observed, provide for the necessary repairs.
6. Make sure that there are no oil leakages from the hydraulic system, the hydraulic tank, pipes, and joints. Make
sure that there are no oil leakages. If any anomaly is observed, provide for the necessary repairs.
7. Check the fuel supply line for fuel leaks. If any anomaly is observed, provide for the necessary repairs.
8. Check the parts of the lower car. Check the track, the drive wheel, the idler and the guards for damage, wear,
loose bolts, or loss of oil from the rollers, etc. If any anomaly is observed, provide for the necessary repairs.
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