Doosan DX60R Shop Manual page 49

Precautions with High-pressure Lines,
Tubes and Hoses
When inspecting or replacing high-pressure piping or hoses,
check to verify that pressure has been released from the circuit.
Failure to release the pressure may lead to serious injury.
Always do the following:
• Wear protective glasses and leather gloves.
• Fluid leaks from hydraulic hoses or pressurized
components can be difficult to see but pressurized
oil has enough force to pierce the skin and cause
serious injury. Always use a piece of wood or
cardboard to check for suspected hydraulic leaks.
Never use your hands or expose your fingers.
• Do not bend high-pressure lines. Do not strike
high-pressure lines. Do not install lines, tubes or
hoses that are bent or damaged.
• Make sure that all clamps, guards and heat shields
are installed correctly to prevent vibration, rubbing
against other parts, and excessive heat during
operation.
– If any of the following conditions are found,
replace the part:
– Damage or leakage from hose end.
– Wear,
exposure of strengthening wire layer.
– Cover portion is swollen in places.
– There is twisting or crushing at movable parts
of hose.
– Foreign material is embedded in the covering.
– Hose end is deformed.
Waste Materials
Physical contact with used motor oil may pose a health risk.
Wipe oil from your hands promptly and wash off any remaining
residue.
Used motor oil is an environmental contaminant and may only
be disposed of at approved collection facilities. To prevent
pollution of the environment, always do the following:
• Never dump waste oil in a sewer system, rivers, etc.
• Always put oil drained from your machine in
containers. Never drain oil directly onto the ground.
• Obey appropriate laws and regulations when
disposing of harmful materials such as oil, fuel,
solvent, filters, and batteries.
Track Excavator Safety
damage, cutting of
X
X
Figure 42
covering, or
Figure 43
X
HDO1045I
HAOA470L
SP001614
Page 41