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MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS
Maintenance Under Special Environmental Conditions
Operating Conditions
Muddy Soil, Rainy or
Snowy Weather
Near the Ocean
Dusty Atmosphere
Rocky Ground
Falling Stones
Freezing Weather
After Operation
: Clean the machine and check for cracks, damage, loose or missing bolts
and nuts. Lubricate all necessary parts without delay.
After Operation
: The following salt pollution measures must be taken when the machine is
operated at sea or near the coastline.
(1) After completing the work, extend/retract the hydraulic cylinders
(2) Thoroughly clean the machine with fresh water to wash off salt.
(3) To prevent corrosion, perform touch up painting periodically on hose
(4) During storage of the machine, cover the machine with tarpaulin
Air Cleaner
: Clean the element regularly at shorter service intervals.
Radiator
: Clean the radiator to prevent clogging of the radiator core.
Fuel System, Urea
: Replace the filter element and strainer regularly at shorter service
SCR System
intervals.
Engine,
: Clean earlier than the normal interval to prevent dust from sticking and
Aftertreatment
accumulating. Inhibit the aftertreatment device regeneration according
Device
to the machine operating condition.
Tracks
: Carefully operate while checking for cracks, damage and loose bolts and
nuts. Loosen the tracks a little more than usual.
Front Attachment : Standard attachment may be damaged when digging rocky ground.
Reinforce the bucket before using it, or use a heavy duty bucket.
Cab Head Guard
: Provide a cab guard to protect the machine from falling stones. Consult
your nearest Hitachi dealer.
Fuel/Lubricant
: Use high quality and low viscosity fuel and oil.
Engine Coolant
: Be sure to use antifreeze.
Battery
: Fully charge the batteries at shorter intervals. If not fully charged,
electrolyte may freeze.
Track
: Keep the tracks clean. Park the machine on a hard surface to prevent the
tracks from freezing to the ground.
DEF/AdBlue®
: May become frozen but the machine can be operated normally.
Precautions for Maintenance
several times to form an oil film on the rod surface. Store the machine
with cylinders retracted as much as possible.
fittings, lubrication piping and inserting position of cover, where sea
water is easily collected.
to prevent sea water from entering into the cab vent. Apply rust
prevention oil (example: ANTIRUST P-1300NP-3 JX Nippon Oil &
Energy Corporation) onto plated part of the cylinder rods.
9-1
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Troubleshooting
