Operation; Check Before Starting Engine, Adjust - Komatsu WA380-6 Operation & Maintenance Manual

OPERATION

OPERATION

CHECK BEFORE STARTING ENGINE, ADJUST

WALK-AROUND CHECK
Before starting the engine, check the area around and under the machine, check for loose nuts and bolts, damage
to any parts, leakage of oil, fuel, or coolant, and check the condition of the work equipment and hydraulic systems.
Check for looseness or play in electric wiring and check that there is no dust accumulated around high-temperature
parts.
Remove any flammable materials from around the battery, engine, muffler, turbocharger, or other high temperature engine parts.
Leakage of fuel or oil will cause the machine to catch fire. Check carefully, be sure to repair any problem, or contact your Komatsu
distributor.
If the machine is at an angle, reposition it level before checking.
Perform the following inspections and cleaning every day before starting engine for the day's work.
1. Check for damage, wear, play in work equipment, cylinders, linkage and hoses.
Check that there are no cracks, excessive wear, or play in the work equipment, cylinders, linkage or hoses. If
any abnormality is found, repair it.
2. Remove dirt and dust from around engine, battery and radiator.
Check if there is any dirt or dust accumulated around the engine or radiator. Also check if there is any flammable
material (dead leaves, twigs, etc.) accumulated around the battery or high temperature engine parts, such as
the engine muffler or turbocharger. Remove all such dirt or flammable material.
3. Check for coolant or oil leakage around the engine.
Check that there is no oil leakage from the engine or coolant leakage from the cooling system. If any problem
is found, repair it.
4. Check for leakage from fuel line.
Check that there is no leakage of fuel or damage to the hoses and tubes. If any problem is found, carry out
repairs.
5. Check for leakage of oil from transmission case, axle, hydraulic tank, hoses, joints.
Check that there is no oil leakage. If any abnormality is found, repair the leakage.
6. Check for oil leakage from the brake line.
Check that there is no oil leakage or damage to the hoses and tubes. If any problem is found, repair the oil
leakage and repair or replace the damaged parts.
7. Check for damaged or worn tires, wheels, and wheel hub bolts and nuts, check for loose wheel hub bolts and
nuts.
Check for cracks or peeling of the tires and for cracks or wear to the wheels (side rim, rim base, lock ring).
Tighten any loose wheel hub bolts or nuts. If any abnormality is found, repair or replace the part.
If any valve caps are missing, install new caps.
WARNING
OPERATION
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