172 General Service and Replacing FRUs
a. Lift the robot from the center of the tray and hold it at a 30-degree angle to the 5U Library
Control Module. Insert the front and rear lower guide rollers into the gear rack on the Y-rail, then
lower the robot slightly until both the front and rear gears make contact with the gear rack.
It is very important to hold the robot at a 30-degree angle until both the
front and rear gears contact the gear rack on the Y-rail.