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OUTLINE OF MAINTENANCE
•
When the hydraulic oil filter element or strainer is replaced or cleaned, or when a hydraulic component is
repaired, replaced, or its piping is removed, air in the circuit must be bled. For bleeding air, see "METHOD
FOR BLEEDING AIR FROM HYDRAULIC CIRCUIT (4-37)".
•
The accumulator is charged with high-pressure nitrogen gas, and it is extremely dangerous if it is handled
incorrectly. For handling, see "METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE
PRESSURE IN ACCUMULATOR (FOR CONTROL CIRCUIT) (4-64)".
4-10
MAINTENANCE
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