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MAINTENANCE
4.8.1
WALK - AROUND INSPECTION
Before carry out any maintenance on this machine, make
sure the mounting ladder, handrails and walkways are prop-
erly installed and in good condition. Keep the ladder, steps,
handrails and walkways free of mud, oil and grease.
Always use the ladder, handrails and steps to get on or of the
machine. Jumping on or off the machine can cause an injury.
Legend for illustration Z24052
Working attachment. Check overall condition.
(1)
Inspect for loose or missing securing parts.
Hydraulic cylinders. Check cylinders, hydraulic
(2)
lines and connections for leakage and damage.
Check bucket teeth for proper mounting. Inspect for
loose or missing securing parts.
Check condition of the loader bucket. Both loader
(3)
bucket versions, bottom dump bucket and backhoe
bucket are equipped with wear protection packages
as specified in the contract. These wear packages
protect the base body of the bucket from premature
wear and tear. Therefore it is important to check the
condition of the wear protection elements regularly.
Worn or damaged protection elements should be
replaced at an early stage in order to prevent dam-
age to the base body of the bucket.
In case the bucket base is already weakened,
reconditioning measures will be necessary. Contact
your Komatsu dealer for support.
(4)
Check guide wheels for leakage.
(5)
Check carrier rollers for leakage.
(6)
Check track rollers for leakage.
Check final drives and hydraulic motors for leak-
(7)
age. Check hydraulic hoses, hose lines and fittings
for leakage and damage.
Check swing circle toothing for adequate lubrica-
(8)
tion.
Check condition, fastening and security of access
(9)
ladders.
Check condition, fastening and security of all walk-
(10)
ways, steps, railings and hand rails.
WARNING
4.8 EVERY 10 OPERATING HOURS OR DAILY
283
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