MAINTENANCE
7-9
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.
Periodic Replacement Parts
Replacement
Intervals
Engine
Fuel hose (Fuel tank to Supply pump) Every 2 years
Oil filter hose (Engine to oil filter) Every 2 years
Heater hose (Heater to engine) Every 2 years
Hydraulic
System
Base Machine
Pump suction hose Every 2 years
Pump delivery hose Every 2 years
Swing hose Every 2 years
Travel high pressure hose Every 2 years
Front
Attachment
Boom cylinder line hose Every 2 years
Arm cylinder line hose Every 2 years
Bucket cylinder line hose Every 2 years
Seat belt Every 3 years
Clear hatch (If equipped) Every 5 years
NOTE: Be sure to replace seals, such as O-rings and
gaskets, when replacing hoses.
IMPORTANT:
• Replace the clear hatch with a new one every 5
years even if undamaged. In case it was remarkably
damaged or has received severe shock loads, re-
place it even if it has been not in use for 5 years.
• When cleaning the clear hatch, use a neutral deter-
gent. If acidic or alkaline detergent is used, the clear
hatch may become discolored or crack.
• Keep organic solvent away from the clear hatch.
Failure to do so may cause the clear hatch to be-
come discolored or crack.
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