Periodic Replacement Of Parts - Hitachi 120-3 class Operator's Manual

PERIODIC REPLACEMENT OF PARTS

To ensure safe operation, be sure to conduct periodic inspec-
tion of the machine. In addition, the parts listed below, if defec-
tive, may pose serious safety/fire hazards. It is very difficult to
gauge the extent of deterioration, fatigue, or weakening of the
parts listed below simply by visual inspection alone. For this
reason, replace these parts at the intervals shown in the table
below. However, if any of these parts are found to be defective,
replace before starting operation, regardless of the interval.
Also, when replacing hoses, check the clamps for deformation,
cracks, or other deterioration, and replace as necessary.
Be sure to perform periodic inspection of all hoses, as shown
below, and replace or retighten any defective parts found, as
necessary.
Consult your authorized dealer for correct replacement.
Engine
Base Machine
Hydraulic
System
Front
Attachment
NOTE: Be sure to replace seals, such as O-rings and
gaskets, when replacing hoses.
Periodic Replacement Parts
Fuel hose (Fuel tank to Supply pump)
Oil filter hose (Engine to oil filter)
Heater hose (Heater to engine)
Pump suction hose
Pump delivery hose
Swing hose
Travel high pressure hose
Boom cylinder line hose
Arm cylinder line hose
Bucket cylinder line hose
Seat belt
MAINTENANCE
7-9
Replacement
Intervals
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 2 years
Every 3 years