43EXCAVATOR OPERATION
HOW TO RELEASE PRESSURE TRAPPED
IN THE HYDRAULIC SYSTEM
A Lower the attachments and the dozer blade to the
ground.
A Turn the key to "STOP" position and shut off the
engine.
A After stopping the engine, turn the key to "RUN"
position.
A Release pressure in the hydraulic system by operating
levers with lever lock pulled down.
A When the pressure of the service port lines is
released, turn on the service port activation switch and
move the service port switch to right and left.
A When relieving the residual pressure, do it
immediately after the engine has stopped.
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