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HIGH PRESSURE OIL
OK
Do not attempt to repair or tighten hydraulic hoses or
fittings when the engine is running or when the hydraulic
circuit is pressurized.
Pressure can be maintained in the hydraulic circuit long
after the engine has been shut down.
• Even though the hydraulic circuit has been left for a
long time after engine stop, sometimes the pressure
still remains inside the hydraulic circuit. Before refilling
or draining the hydraulic oil, or inspecting or
maintaining the machine, always release the pressure
in the hydraulic lines by pressing the air breather of
the hydraulic oil tank and loosening the connecting
parts of the related hoses and connectors.
High pressure oil can penetrate the skin or eyes and
cause injury, blindness or death. Fluid escaping from a
small hole can be almost invisible.
• Always wear a face shield, protective glasses and
gloves when inspecting for leaks.
• Always use a piece of cardboard or wood to inspect
for suspected leaks.
If oil is injected into the skin, it must be removed within
a few hours by a doctor familiar with this type of injury.
High pressure oil from even a pin hole leak can penetrate the skin or eyes and cause severe injury or blindness.
HIGH PRESSURE FUEL IN THE FUEL LINES
During engine running, high pressure is generated inside the fuel lines of the engine.
After engine stop, wait 1 minute before starting inspection and maintenance.
HIGH PRESSURE OIL HOSE/PIPING
Leakage of oil or fuel from the hose or piping may cause a fire or malfunction of the machine. Stop working
immediately whenever looseness of or leakage from the installation parts of the hoses or piping are found and
tighten or repair them using proper repair procedures and tightening torque.
Consult with your KOBELCO authorized dealer if damage or deformation of the hoses or piping is found.
The hoses in below-mentioned conditions are required to be replaced.
• A damaged hose or hose with a deformed fitting.
• The sheathing material of the hose has scratches or cuttings, or exposes the wire reinforcement layer.
• A part of the sheathing material is swelled.
ELECTRIC SHOCK
Work on the machine’s electrical equipment may only be carried out by skilled electrical personnel or trained
personnel under the supervision of an electrician in accordance with electrical regulations.
When working on energized equipment, always have another person positioned near the emergency-off or main
switch and overvoltage release.
Contact your authorized KOBELCO dealer for assistance.
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