MAINTENANCE 4.8 EVERY 10 OPERATING HOURS OR DAILY
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4.8.1 WALK - AROUND INSPECTION
WARNING
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 off
the machine. Jumping on or off the machine can cause an
injury.
Legend for illustration Z22881
OTICE
If any damages, failures or wrong condition, have been found
during the inspection, corrective action must be taken.
(1) Working attachment. Check overall condition. Inspect for loose or missing securing parts.
(2) Hydraulic cylinders. Check cylinders, hydraulic lines and connections for leakage and damage.
(3) Check bucket teeth for proper mounting. Inspect for loose or missing securing parts.
Check condition of the loader bucket. Both loader bucket versions, bottom dump bucket and back-
hoe 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 impor-
tant 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 damage 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.
(7) Check travel gears for leakage
(8) Check swing circle toothing for adequate lubrication.
(9) Check condition, fastening and security of access ladders.
(10) Check condition, fastening and security of all walk-ways, steps, railings and hand rails.
(11) Check condition, fastening and security of emergency escape ladder
(12) Check condition and fastening of engine air cleaners
(13) Check condition and fastening of exhaust mufflers
(14) Check condition and fastening of automatic lubrication system grease container
(15) Make a visual inspection of the engine room. Check engine oil level and coolant level.
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