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MAINTENANCE
Safety-critical partS
The material of the safety-critical part listed above tends to change over time and cause wear
or deterioration. It is difficult to determine the degree of deterioration at the periodic inspection,
and thus they need to be replaced with new ones after a certain time to maintain their proper
performance even if they appear in good condition. Note that regardless of the replacement
schedule, replacement must be performed immediately if a symptom of wear is found. If a
hose clamp is deformed or cracked, replace it together with the hose immediately. When
replacing the safety-critical parts, ask your sales or service dealer.
In addition to the safety-critical parts, inspect the hydraulic hoses and retighten or replace as
necessary. When replacing the hydraulic hoses, replace the O-rings and seals at the same
time.
Check the fuel and hydraulic hoses according to the periodic schedule described below.
Refer to "Maintenance".
Type of inspection
Daily inspection
Monthly inspection
Annual inspection
Leakage from the connecting parts of hydraulic or fuel hoses
Leakage from the connecting parts of hydraulic or fuel hoses
Damaged hydraulic or fuel hoses (cracks, wear and tear)
Leakage from the connecting parts of hydraulic or fuel hoses
Deteriorated, twisted, damaged hydraulic or fuel hoses (cracks, wear
and tear) or hoses in contact with other parts of the machine
Inspection item
5-11
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