If a torque driver is not available, use a #2 Phillips screwdriver to tighten the thumbscrews until a low
initial threshold torque achieves a snug tight condition. Do not over tighten.
2.
Ensure that the chassis is securely tightened to the rack.
From the front of the library, use a torque driver to tighten the captive fasteners to 6 inch pounds or
0.68 N m.
If a torque driver is not available, use a #2 Phillips screwdriver to tighten the captive fasteners until a
low initial threshold torque achieves a snug tight condition. Do not over tighten.
Locking or unlocking the robotic assembly manually
In normal operation, the library returns the robotic assembly to its home position in the base module,
behind the OCP, and sets the lock when the library is powered off. You do not normally lock or unlock the
robotic assembly manually. If the robotic assembly becomes stuck between the locked and unlocked
positions, you can set the lock manually.
Prerequisites
The base module has been removed from the rack. For instructions, see the first part of the procedure for
replacing a module:
on page 138
Procedure
• To lock the assembly, standing at the front of the module, move the blue lever to the left, then away
from you, then to the right.
• To unlock the assembly, move the blue lever to the left, then towards you, then to the right.
Returning the robotic assembly to the base module
If you powered off the library and the robotic assembly did not return to its park position in the base
module behind the OCP, use this procedure.
Locking or unlocking the robotic assembly manually
179