Komatsu PC16R-3, Operation & Maintenance Manual

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GUIDE TO MAINTENANCE
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4.1 GUIDE TO MAINTENANCE
WARNING
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Oils, filters, coolant, gaskets, electric cables, and batteries are considered special waste and must be
collected and disposed of according to the anti-pollution regulations in force.
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The combustible material of some components may become extremely dangerous if it burns. For this
reason, avoid any contact of burnt material with your skin or eyes and do not inhale its fumes.
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Do not carry out any inspection or maintenance operation not prescribed in this manual.
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During maintenance ensure that the machine and its attachments are stable enough to avoid overturning, falling
or uncontrolled movements.
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When dismantling or assembling the machine for the purpose of maintenance or repair, always ensure that at
each stage of the process, care is taken to ensure that the machine remains stable. Failure to do this could result
in serious injury or death.
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Guards are installed in the area of the engine to protect personnel from moving parts. These guards should only
be removed by a Komatsu service engineer unless specific instructions are given in this manual.
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If any doubt exists, contact your Komatsu Distributor.
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Check the hour meter every day to verify if it is necessary to carry out any maintenance operation.
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Before opening the engine hood, engage all the safety locks and stop the engine.
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If it is necessary to check the hydraulic oil level, retract the bucket and arm cylinders completely and lower the
bucket teeth to the ground.
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Carry out these operations on firm and level ground.
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Use Komatsu genuine oils and greases; choose oils suitable for the ambient temperature.
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Use clean oils and greases. Keep the oil and grease containers clean and prevent any foreign matter from get-
ting into them.
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Keep the machine thoroughly clean; this facilitates troubleshooting. In particular, grease nozzles, breather holes,
and the areas where fluid levels are checked should be kept clean to prevent the infiltration of impurities.
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Draining water or oil, and changing filters soon after work is dangerous; wait for the engine to cool down to a
safe temperature of 40–45°C.
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If it is necessary to drain the oil when it is cold, warm it up to a suitable temperature (approximately 20–40°C) be-
fore draining it.
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When changing oils or filters, check if metal particles are present. If there are large quantities of metal particles,
contact your Komatsu Distributor.
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If the machine is provided with a fuel filter in the filler neck, do not remove it while refuelling.
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Check and change the oil in a clean place and prevent any impurity from getting into the tank.
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Before carrying out any maintenance operation, hang a warning plate to the ignition switch and the control levers
to prevent anyone from starting the engine.
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When performing maintenance operations, always take the precautions indicated in the safety plates applied to
the machine.
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Instructions for arc welding:
1 - Before any welding operation on the machine, stop the engine, wait at least one minute, and afterwards turn
the battery main switch to OFF and extract the specific key.
2 - Disconnect the alternator and the KOMTRAX system control unit.
3 - Do not apply more than 200V continuously.
4 - Connect the earth cable within 1 m from the point where the welding operation must be carried out.
5 - Avoid placing gaskets and bearings between the welding area and the earth cable. If the earth cable is con-
nected near instruments, connectors, etc., these may not function correctly.
6 - Do not use the area around the work equipment pins or the hydraulic cylinders as earth.
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