Y-Axis Stepper Motor Assembly; Required Tools; To Remove The Y-Axis Stepper Motor Assembly - Sun Microsystems Enterprise Tape Library 7/3500 Field Service Manual

Y-Axis Stepper Motor Assembly

Required Tools

5/32 Allen wrench hex, flat- blade screwdriver, 11/32 hex nut driver

To Remove the Y-Axis Stepper Motor Assembly

1. Remove power from the library.
Caution – DO NOT disconnect the power cord from facility power or the library.
The power cord is the only means of grounding the chassis and helping to prevent
electrostatic discharge (ESD) damage.
2. Connect your ESD wrist grounding strap to the closest grounding point on the
frame of the library.
3. Remove the top, left, and right cosmetic panels as shown in "Top, Right, and Left
Panels" on page 92.
4. Move the horizontal carriage towards the front of the library.
5. Secure the extension axis up and out of the way using a cable tie around the y-axis
rail. Wrap the cable tie around the y-axis rail using one of the conformation sensor
slots.
Caution – Failure to securely fix the position of the vertical axis assembly during
this operation could cause injury.
6. From the left of the library, locate and loosen the vertical belt using the belt
tensioner. See "To Clean the Rollers" on page 31.
7. Remove the cable clamps to free the stepper motor connector cable. (
8. Disconnect the y-axis stepper motor connector P1 and remove cable clamps
holding the harness to back of PWA.
Note – Pay attention to the routing of the harness before removal.
9. Remove the screws that secure the y-axis stepper motor to the x-axis carriage
assembly and lift it out.
104 Sun Enterprise Tape Library 7/3500 Field Service Manual • July 1997
).
FIGURE 4-6