4-4
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4.2
INSPECTING AND MAINTAING MACHINE
4.2.1
PERIODIC INSPECTION AND MAINTENANCE
Regular inspection and maintenance enable this machine to achieve the full function and extend the service life of
each part. As a general rule, the period of the lubrication and maintenance is determined by the hour meter. If the
hour meter reading matches roughly with the calendar day, and if you would like to schedule them based on the
calendar day, take whichever comes first. For items which do not have a certain service time, see "WHEN
REQUIRED". Also, operation in sites under severe work conditions or with a lot of dust and moisture may need
more frequent lubrication and maintenance than the service times specified there.
4.2.2
PRECAUTIONS OF INSPECTION AND MAINTENANCE
Use inspection and maintenance procedures described in this manual. Park the machine on a level and firm ground
before inspection and maintenance.
For the adjustment, disassembling and repair of the engine, reduction unit, hydraulic component and electronic
devices (controller, etc.), contact your KOBECO authorized dealer.
STOP THE ENGINE BEFORE INSPECTION AND MAINTENANCE
Be sure to stop the engine before inspection and maintenance of the engine. Inspecting and maintaining the
running engine may cause injury by being caught in the cooling fan or fan belts. When running the engine is
unavoidable during the inspection or maintenance, it should be done by at least two persons with the condition that
one person can stop the engine at any time and they are communicating with each other.
PUT THE WARNING TAGS
Put the tags "DO NOT START ENGINE!", "DO NOT OPERATE" and "UNDER INSPECTION/MAINTENANCE" on
noticeable places such as around the operator's seat as well as the starter switch or control levers before
inspection and maintenance.
USE OUR GENUINE PARTS
• For replacement of parts, grease and oil, be sure to use KOBELCO genuine parts. Use grease and oil with the
specified viscosity depending on the ambient temperature.
• Store containers of greases and oils in a clean room to keep them away from dust and water.
KEEP OUT DUST
Attach a plug or cap to the lubrication hole of a removed hydraulic hose or hydraulic component to keep out foreign
materials.
INSPECT DRAIN OIL AND FILTERS
When replacing oil or filter, check the drain oil or old filter for metallic powder or other foreign materials mixed.
Contact the person in charge and take appropriate measures if any foreign materials are found.
HANDLING OF WASTE OIL AND ANTIFREEZE
Be sure to drain waste oil and antifreeze in containers and ask a public service company for disposal of them as the
industrial waste.
CLEAN THE SEALING SURFACE
After removing the O-ring or gasket seal, clean the sealing surface to replace it with a new one.
Apply thin oil to the O-ring or seal and attach it into the groove correctly.
DO NOT MIX OILS
Never mix different kinds of oil. When using another kind of oil, replace the total amount of old oil.
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