6-4
PRECAUTION WHEN INSTALLING HYDRAULIC HOSES OR PIPES
Be particularly careful that the joint of hose, pipe
and functioning item are not damaged.
Avoid contamination.
Assemble after cleaning the hose, pipe and joint
of functioning item.
Use genuine parts.
Do not assemble the hose in the condition of
twisted or sharp radius.
Keep the specified tighten torque.
(1)
(2)
(3)
(4)
(5)
5)
PERIODICAL REPLACEMENT OF SAFETY PARTS
Periodical replacement of safety parts
Fuel hose(tank-engine)
Heater hose
(heater-engine)
Pump suction hose
Pump delivery hose
Swing hose
Boom cylinder line hose
Arm cylinder line hose
Bucket cylinder line hose
Replace O-ring and gasket at the same
time when replacing the hose.
Replace clamp at the same time if the
hose clamp is cracked when checking and
replacing the hose.
It is desirable to do periodic maintenance the
machine for using the machine safely for a long
time.
However, recommend to replace regularly the
parts related safety not only safety but maintain
satisfied performance.
These parts can cause the disaster of life and
material as the quality changes by passing time
and it is worn, diluted, and gets fatigued by using
repeatedly.
These are the parts which the operator can not
judge the remained lifetime of them by visual
inspection.
Repair or replace if an abnormality of these
parts is found even before the recommended
replacement interval.
(1)
(2)
(3)
Engine
Hydrauli
c system
Main
circuit
Working
device
Every
2 years
Every
2 years
Every
2 years
Interval
6)
1.
2.
