Komatsu PC130-6K 2001 Operation & Maintenance Manual page 36

Hydraulic excavator
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8. PRECAUTIONS FOR MAINTENANCE
KEEP WORK PLACE CLEAN AND TIDY
Do not leave hammers or other tools lying around inthe work place. Wipe up all grease, oil, or other substances
that will cause you to slip. Always keep the work place clean and tidy to enable you to carry out operations
safely.
If the work place is not kept clean and tidy, there is danger that you will trip, slip or fall over and injure yourself.
APPOINT LEADER WHEN WORKING WITH OTHERS
When repairing the machine or when removing and installing the work equipment, appoint a leader and follow
his instructions during the operation.
When working with others, misunderstanding between workers can lead to serious accidents.
RADIATOR WATER LEVEL
• When inspecting the radiator water level, stop the engine and wait for the engine and radiator to cool down.
Check the water level in the sub-tank. Under normal conditions, do not open the radiator cap.
• If there is no sub-tank, or the radiator cap must be removed, always do as follows.
• Wait for the radiator water temperature to go down before checking the water level. (When checking if the
water temperature has gone down, put your hand near the engine or radiator and check the air temperature.
Be careful not to touch the radiator or the engine).
• Release the internal pressure before removing the radiator cap, and remove the radiator cap slowly.
STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE
• When carrying out inspection and maintenance, park the machine on level ground where there is no danger
of falling rocks or land slides, or of flooding if the land is low, then lower the work equipment to the ground
and stop the engine.
• Operate the right work equipment control lever several times to the RAISE and LOWER positions to release
the remaining pressure in the hydraulic circuit, then set safety lock lever
• Put blocks under the track to prevent the machine from moving.
• The worker carrying out the maintenance should be extremely careful not to touch or get caught in the
moving parts.
1-24
WARNING: for reasons of
safety, always follow these
safety precautions.
to the LOCK position.

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