Komatsu WB93R-5, Operation & Maintenance Manual

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MAINTENANCE NOTES
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4.2.3 NOTES REGARDING THE ELECTRIC SYSTEM
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If the cables are wet or their insulating material is damaged, the electric system leaks and this may result in mal-
functions of the machine.
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The maintenance operations required for the electric system are the following:
1 - check of the alternator belt for damage or breakages;
2 - check of the battery electrolyte level.
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Do not remove or eliminate any electric component installed on the machine and do not install any electric com-
ponent with characteristics different from those specified and approved by Komatsu.
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Keep the electric system dry.
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When working on seashores or river or lake banks, protect the jack plugs from corrosion.
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Do not connect any optional device to the fuses, ignition switch, battery, relays, etc.; for the installation of any op-
tional equipment, contact your Komatsu Dealer.
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If any electric welding operation has to be carried out, disconnect the battery and the alternator.
4.2.4 NOTES REGARDING LUBRICATION
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Lubrication makes the operations carried out with the machine and work equipment smoother, while preventing
wear and the noise that may be produced if the joints are dry.
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Lubrication is to be carried out with grease or oil.
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The maintenance operations required for the components that need lubricating are the following:
1 - check of the levels;
2 - oil change;
3 - injection of grease through the grease nipples;
4 - grease lubrication with a brush.
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Use only the specified lubricants, according to the ambient temperature.
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Always clean the grease nipples before injecting grease and remove any excess grease after lubrication; this
cleaning operation must be performed with extreme care on the revolving parts.
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Check that the lubricant levels are correct, avoiding excessive or insufficient quantities.
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