Doosan DX35Z, Operation And Maintenance Manual

Page: 48 / 211

OP000468 Safety
1-42
Action When Abnormality Is Found
During Inspection
If any abnormality is found during inspection, always carry
out repairs. In particular, if the machine is used when there
are still problems with the brake or work equipment systems,
it may lead to serious injury.
If necessary depending on the type of failure, please contact
your
DOOSAN
distributor for repairs.
Precautions with High-pressure Lines,
Tubes and Hoses
When inspecting or replacing high-pressure piping or hoses,
check to verify that the 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, damage, cutting of covering, or
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.
NOTE:
Refer to “Hose In-service Lifetime Limit
(European Standard ISO 8331 and
EN982 CEN)” on page 4-38, for additional
European regulations.
X
X
HDO1045I
Figure 39