63OPERATION OF THE MACHINE
HOW TO RELEASE PRESSURE TRAPPED
IN THE HYDRAULIC SYSTEM
1. Lower the attachments to the ground and activate the
hydraulic lock switch.
2. Turn the key to "STOP" position and shut off the
engine.
3. After stopping the engine, turn the key to "RUN"
position.
4. Deactivate the hydraulic lock switch.
5. Move the operating lever to release pressure in the
hydraulic system.
[How to release pressure trapped in the AUX port]
1. Perform the above operations of 1 to 4.
2. Turn "ON" the AUX port enable switch.
3. Make sure that the flow volume in all the AUX ports is
not minimized.
If the pressure is removed after minimizing the flow
volume in the AUX port, release pressure is not
removed completely and the hose coupler may be
unable to connect and disconnect.
[R630]
(1) Hydraulic lock switch (2) Hydraulic lock indicator
(1) AUX port enable switch (2) AUX operation indicator
(1) Display selector switch
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