Spectra Logic Spectra 2k Parts list manual

P.N. 90870166 Revision A
Spectra®2K Library
Robotic Picker
Replacement Guide

Spectra 2K Library Robotic Picker Replacement Guide
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Notices
Spectra Logic Corporation provides the Spectra 2K library “as is” without warranty of any kind,
either expressed or implied, including but not limited to the implied warranties of
merchantability or fitness for a particular purpose. In no event shall Spectra Logic be liable for
any loss of profits, loss of business, loss of use or data, interruption of business, or for indirect,
special, incidental, or consequential damages of any kind, even if Spectra Logic has been advised
of the possibility of such damages arising from any defect or error in this publication.
Information furnished in this manual is believed to be accurate and reliable. However, no responsibility
is assumed by Spectra Logic for its use. Due to continuing research and development, Spectra Logic may
revise this publication from time to time without notice, and reserves the right to change any product
specification at any time without notice.
Some products or services mentioned in this manual are provided by companies other than Spectra
Logic. Inquiries about one or more of these products or services should be sent directly to the company
in question.
Spectra 2K Library Robotic Picker Replacement Guide
Copyright © 2003 by Spectra Logic Corporation. All rights reserved.
Spectra Logic Contact Information
Corporate Headquarters European Office
Address
Phone
Fax
Spectra Logic Corporation
1700 N 55th Street
Boulder CO 80301
USA
[phone] or [phone]
[phone]
Address
Phone
Fax
Spectra Logic Europe Limited
Magdalen Centre
Robert Robinson Avenue
Oxford Science Park
Oxford
UK OX44 7 RW
[phone]
[phone]
Web Site http://www.SpectraLogic.com

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Contents
Introduction ................................................................................................4
Prepare the Library.....................................................................................6
Remove the Library’s Side Panels............................................................... 7
Remove the Old Robotic Picker .................................................................9
Install the New Robotic Picker................................................................. 16
Replace the Library’s Side Panels............................................................. 24
Finish......................................................................................................... 26

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Introduction
About this Guide
This guide describes the procedure for replacing the robotic picker assembly in a
Spectra 2K library.
About the Robotic Picker
The robotic picker is the mechanism that moves all media within the Spectra 2K library
(Figure 1). It works using only two small motors, and it can be integrated with a bar
code scanner.
Estimated Time Required
This procedure should take approximately 30 minutes.
Figure 1 The robotic picker.

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Materials and Tools Required
• Robotic Picker Assembly, P.N. 90870686
• A #2 Phillips screwdriver
• A small flat head screwdriver
• A snap ring pliers
• A picker calibration block

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Prepare the Library
1. Exit all programs running on the library’s host computer.
2. Switch off power to the host computer, the library, and any other attached
equipment.
Warning: Electrical shock hazard inside the library can cause injury or
death. Be sure to disconnect AC power to the library before
removing the library’s side panels.
3. Disconnect all cables from the library.
4. Move the library to a location where you have enough room to access all sides of
the library.
Warning: The library is heavy; it weighs approximately 30 pounds. Take
care when moving the library.
5. Proceed to Remove the Library’s Side Panels on page 7.

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Remove the Library’s Side Panels
1. Use the #2 Phillips screwdriver to remove the six screws attaching the sides of the
library to the rear panel; there are three screws on each side, each on a tab
connected to the side panel (Figure 2).
Note: During this procedure, take care not to scratch the paint on the
outside of the library.
Figure 2 The side panel screws.

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2. Carefully slide each side panel backward.
• Use one hand to push on the panel from the inside (Figure 3).
• Use one hand to push (and pull) from the outside (Figure 4).
Note: The panels on some white-colored libraries may be difficult to
slide back. If necessary, use a flat head screwdriver to gently pry
the panels back from the rear of the library.
3. Set the side panels aside in a safe place.
4. Proceed to Remove the Old Robotic Picker on page 9.
Figure 3 Push from the inside. Figure 4 Push (and pull) from the outside.

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Remove the Old Robotic Picker
1. Slide the picker upward on its rails, then insert the calibration block underneath it
at the bottom of the library (Figure 5).
2. Allow the picker to slide down on its rails and come to rest on the calibration
block.
Figure 5 The picker at the top of the library and the calibration block
at the bottom of the library.
Robotic
picker
Calibration
block

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3. Use the small flat head screwdriver to release the latches on the picker cover.
i. Insert the head of the screwdriver into the small square hole in the rear corner
of the picker cover (Figure 6).
ii. Gently pry the mounting tab outward.
iii. Do this on both sides of the picker cover.
Figure 6 The picker cover latches.

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4. For libraries with bar code scanners only—lift the picker cover slightly and
disconnect the bar code scanner cable at the front of the cover (Figure 7).
5. Carefully remove the picker cover and set it aside.
6. From the left side (as you face the front of the library), use the #2 Phillips
screwdriver to remove the top screw on the robotics cable bracket
(Figure 8).
7. Set the screw aside in a safe place.
Figure 7 The bar code scanner cable.
Figure 8 The screw attaching the picker cable bracket.

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8. Disconnect the robotics cable bracket from the picker by lifting it first upward, then
out (Figure 9).
9. Disconnect the robotics cable from the picker (Figure 10).
Hold the cable as closely to the connector as possible, and gently move it back and
forth until it becomes loose.
Figure 9 The robotics cable bracket.
Figure 10 The robotics cable.

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10. Through the picker’s rails, use the snap ring pliers to remove the snap ring on the
bottom center gear of the picker (Figure 11).
Do this on both sides of the picker.
Note: Keep the following points in mind when working with the snap
rings:
• Take care not to let the snap rings spring away from you when
handling them with the pliers.
• Spread the snap rings just enough so that they move freely over
the shaft—excessive force will damage the snap rings.
11. Set the snap rings aside in a safe place.
Figure 11 The snap ring on the bottom center gear of the picker.

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12. Remove both bottom center gears (Figure 12).
13. Hold the picker from the front as shown in Figure 13.
Caution: Use great care when removing the picker. The gears can be
damaged very easily.
Figure 12 The bottom center gear on the picker.
Figure 13 The picker being held from the front.

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14. Lift the front of the picker until it is vertical (Figure 14 and Figure 15).
15. Rotate the picker clockwise and remove it from the library (Figure 16).
16. Leave the calibration block in the library.
17. Proceed to Install the New Robotic Picker on page 16.
Figure 14 The picker lifted up from the front. Figure 15 The picker in the vertical position.
Figure 16 The picker rotated clockwise.
21

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Install the New Robotic Picker
1. Remove the new picker from its packaging.
Save the packaging so that the old picker can be returned to Spectra Logic.
2. Place the picker in the library and rotate it counter-clockwise (Figure 17).
The new picker must go into the library sideways with the front of the picker facing
up and the exposed top of the picker facing to the right.
3. Before engaging the gears, angle the picker so that the rear edge (the side that
faces the cartridges and drives) is flat on the calibration block (Figure 18).
Figure 17 The picker with the front facing up.
Figure 18 The rear edge of the picker on the calibration block.
2
1
No gap

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4. Gently lower the front of the picker so that it lays flat on the calibration block.
It may be necessary to gently work the picker up and down to get the gears to
correctly engage the picker rails.
Caution: Do not force the robotic picker gears into the picker rails.
5. Gently press down on opposite corners of the robotic picker verify that it is flat
against the calibration block. There should be no gap between the picker and the
block (Figure 19).
• If there is a gap between the picker and the block, lift the picker up, re-align it
in the rails, and lay it down on the alignment block once more.
• Keep repeating Step 5 until the picker lays completely flat on the calibration
block.
Figure 19 No gap between the picker and the calibration block.

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6. Replace the bottom center gears, making sure that the teeth on the gears fit
together with the teeth of the other gears on the assembly (Figure 20).
7. Once the gears are in place, check the picker again to make sure that there is no
gap between the picker and the calibration block. (See Step 5 on page 17.)
Figure 20 The bottom center gear on the picker.

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8. Use the snap ring pliers to replace the snap ring on the bottom center gear of the
picker (Figure 21). Do this on both sides of the picker.
Note: Keep the following points in mind when working with the snap
rings:
• Take care not to let the snap rings spring away from you when
handling them with the pliers.
• Spread the snap rings just enough so that they move freely over
the shaft—excessive force will damage the snap rings.
9. Make sure that the snap rings are fully seated by turning them around in a full
circle once they are on the shaft.
Figure 21 The snap ring on the bottom center gear of the picker.

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10. Connect the robotics cable (Figure 22).
• Make sure that the connector is properly aligned.
• Hold the connector—do not push with the wires.
11. Replace the robotics cable bracket by putting it flat against its base, then sliding it
down into position while pushing inward (Figure 23).
Figure 22 The robotics cable.
Figure 23 The robotics cable bracket.