MAINTENANCE INFORMATION MAINTENANCE
4-2
MAINTENANCE INFORMATION 4
Do not perform any inspection and maintenance operation that is not found in this manual.
During maintenance ensure that the machine and its attachments are stable enough to avoid overturning, falling or
uncontrolled movements.
When dismantling or assembling the machine for the purpose of maintenance, repair or transportation, 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.
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.
If any doubt exists, contact your Komatsu distributor.
Service Meter Reading
Check the service meter reading every day to see if the time has come for any necessary maintenance to be per-
formed.
Komatsu Genuine Replacement Parts
Use Komatsu genuine parts specified in the Parts Book as replacement parts. The use of genuine Komatsu spare
parts is recommended to assure safe mounting and operation of the machine.
Komatsu Genuine Lubricants
For lubrication of the machine, use the Komatsu genuine lubricants. Moreover use oil of the specified viscosity
according to the ambient temperature.
Windshield Washer Fluid
Use ethyl alcohol window washer fluid, and be careful not to let any dirt get into it.
Fresh and Clean Lubricants
Use clean oil and grease. Also, keep the containers of the oil and grease clean. Keep foreign materials away from
oil and grease.
Check Drained Oil and Used Filter
After oil is changed or filters are replaced, check the old oil and filters for metal particles and foreign materials. If
large quantity of metal particles or foreign materials are found, always report to the person in charge, and carry out
suitable action.
Fuel Strainer
If your machine is equipped with a fuel strainer, do not remove it while fueling.
Welding Instructions
q Cut off power. Wait for approx. one minute after turning off the engine starting switch key, and then disconnect
the negative (-) terminal of the battery.
q Do not apply more than 200 V continuously.
q Connect grounding cable within 1 m of the area to be welded. If grounding cable is connected near instru-
ments, connectors, etc., the instruments may malfunction.
q If a seal or bearing happens to come between the part being welded and grounding point, change the ground-
ing point to avoid such parts.
q Do not use the area around the work equipment pins or the hydraulic cylinders as the grounding point.
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