Agilent Technologies Bravo Platform User Manual page 89

4 Maintenance and troubleshooting
Manually moving the head or gripper
Manually moving the head in the x-axis and y-axis
IMPORTANT
Manually opening the gripper
IMPORTANT
IMPORTANT
78
To move the head manually in the x-axis and y-axis:
1
Disable the motors in one of the following ways:
•
Press the emergency-stop button on the pendant.
•
In Bravo Diagnostics, click Disable all motors on the Jog/Teach tab.
2
Use your hands to gently move the head along the x-axis and y-axis.
The z-axis brake engages when the z-axis is disabled, preventing you from moving
the head manually in the z-axis.
3
After you complete the manual moves, re-enable the motors in one of the
following ways:
•
If the emergency-stop is engaged, release the red button on the pendant by
turning it clockwise.
•
If the motors are disabled, click Enable all motors in the Jog/Teach tab of
Bravo Diagnostics.
If you perform an emergency stop while the gripper is holding labware, you can use
the following procedure to open the gripper manually.
The Zg-brake engages when the Zg-axis is disabled, preventing you from moving the
gripper assembly manually in the Zg-axis.
To open the gripper manually:
1
Disable the G-axis motor in one of the following ways:
•
Press the emergency-stop button on the pendant.
•
In Bravo Diagnostics, click the Gripper tab. In the G-Axis area, click Enable
motor to disable the motor. Ensure that the Motor enable light is off.
2
On the rear-facing surface of the gripper assembly, locate the access hole for
the G-axis lead screw.
The lower gripper must be extended in the Zg-axis to expose the access hole.
3
While ensuring that one hand is free to support the labware held by the gripper,
use a 2.5-mm flat-blade screwdriver to turn the G-axis lead screw
counterclockwise to open the gripper and release the labware.
Bravo Platform User Guide