Overland Storage NEO 8000 User manual

Overland
Storage
NEO®8000/8000e Spare Z-Axis
Housing Assemblies
Remove & Replace Instructions
February 2013
10400202-003

Overland Storage, Inc.
9112 Spectrum Center Blvd.
San Diego, CA 92123
U.S.A.
Tel: [phone] (toll-free U.S.)
Tel: [phone], Option 5 (International)
Fax: [phone] (general)
Fax: [phone] (sales)
www.overlandstorage.com
NEO 8000e Spare Z-Axis Housing Assemblies Instructions
10400202-003 02/2013 ©2010-13 Overland Storage, Inc. 2
©2010-13 Overland Storage, Inc. All rights reserved.
Overland®, Overland Data®, Overland Storage®, ARCvault®, DynamicRAID®, LibraryPro®, LoaderXpress®, Multi-SitePAC®, NEO®, NEO Series®,
PowerLoader®, Protection OS®, REO®, REO 4000®, REO Series®, Snap Appliance®, Snap Care® (EU only), SnapServer®, StorAssure®, Ultamus®, VR2®,
and XchangeNOW®are registered trademarks of Overland Storage, Inc.
GuardianOS™, RAINcloud™, RapidRebuild™, SnapDisk™, SnapEDR™, Snap Enterprise Data Replicator™, SnapExpansion™, SnapSAN™,
SnapScale™, SnapServer DX Series™, SnapServer Manager™, SnapWrite™, and SnapServer Manager™ are trademarks of Overland Storage, Inc.
All other brand names or trademarks are the property of their respective owners.
The names of companies and individuals used in examples are fictitious and intended to illustrate the use of the software. Any resemblance to actual
companies or individuals, whether past or present, is coincidental.
PROPRIETARY NOTICE
All information contained in or disclosed by this document is considered proprietary by Overland Storage. By accepting this material the recipient agrees
that this material and the information contained therein are held in confidence and in trust and will not be used, reproduced in whole or in part, nor its
contents revealed to others, except to meet the purpose for which it was delivered. It is understood that no right is conveyed to reproduce or have
reproduced any item herein disclosed without express permission from Overland Storage.
Overland Storage provides this manual as is, without warranty of any kind, either expressed or implied, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose. Overland Storage may make improvements or changes in the product(s) or programs
described in this manual at any time. These changes will be incorporated in new editions of this publication.
Overland Storage assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of this manual, nor for any problem that might arise
from the use of the information in this manual.
[All-10800314-001]

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Preface
This document guides you through the process of removing and replacing the Upper and
Lower Housing Assemblies on either a front or rear Belt Drive Assembly (BDA):
1. Chapter 1describes preparing the library for a BDA removal.
2. Select the appropriate chapter for removing, retrofitting, and replacing the appropriate
BDA:
•Chapter 2covers the removal and replacement of the of the Front Housing
Assemblies.
•Chapter 3covers the removal and replacement of the of the Rear Housing
Assemblies.
3. Chapter 4 deals with reassembling the library once the BDA is reinstalled.
4. Chapter 5 addresses the tests that must be run to prepare the library for reactivation.
Documentation
To access the NEO 8000 User Guide and NEO 8000e User Guides, visit:
http://docs.overlandstorage.com/neo-series
Overland Technical Support
For help configuring and using your NEO tape library, email our technical support staff at:
[email protected].
You can get additional technical support information on the Contact Us web page at:
http://docs.overlandstorage.com/support
For a complete list of support times based on your type of coverage, visit our website at:
http://docs.overlandstorage.com/care

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Preface
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Conventions
This document exercises several alerts and typographical conventions.
Alerts
Typographical Conventions
Information contained in this guide has been reviewed for accuracy, but not for product
warranty because of the various environments, operating systems, or settings involved.
Information and specifications may change without notice.
Electrostatic Discharge Information
A discharge of static electricity can damage micro-circuitry or static-sensitive devices. To
help prevent Electrostatic Discharge (ESD) damage, observe these and other standard ESD
precautions:
•Make sure you are always properly grounded.
•Keep the work area free of non-conductive materials.
•Avoid touching pins, leads, or circuitry.
Convention Description & Usage
IMPORTANT An Important note is a type of note that provides information essential to
the completion of a task or that can impact the product and its function.
CAUTION A Caution contains information that the user needs to know to avoid
damaging or permanently deleting data or causing physical damage to
the hardware or system.
WARNING
ADVERTISSEMENT
A Warning contains information concerning personal safety. Failure to
follow directions in the warning could result in bodily harm or death.
Un Canadien avertissement comme celui-ci contient des informations
relatives à la sécurité personnelle. Ignorer les instructions dans
l'avertissement peut entraîner des lésions corporelles ou la mort.
Convention Description & Usage
Button_name Words in this special boldface font indicate the names of command
buttons found in the Web Management Interface.
Ctrl-Alt-r This type of format details the keys you press simultaneously. In this
example, hold down the Ctrl and Alt keys and press the r key.
NOTE A Note indicates neutral or positive information that emphasizes or
supplements important points of the main text. A note supplies
information that may apply only in special cases, for example, memory
limitations or details that apply to specific program versions.
Menu Flow
Indicator (>)
Words with a greater than sign between them indicate the flow of actions
to accomplish a task. For example, Setup > Passwords > User indicates
that you should press the Setup button, then the Passwords button,
and finally the User button to accomplish a task.
Courier Italic A variable for which you must substitute a value
Courier Bold Commands you enter in a command-line interface (CLI)

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Chapter 1
Library Preparation
Overview
A Z-Axis Belt Drive Assembly (BDA) consists of a pole with belts and pulleys that move one
end of the Shuttle Assembly vertically inside the library. There are two BDAs in every
library (front and rear), each with slightly different overall assemblies. Each BDA has a
Housing Assembly at each end of the pole to control the belt movement and tension.
Figure 1-1: Front and Rear BDAs with Shuttle Track Between
This spare kit consists of the Upper and Lower Housing Assemblies that work on either
BDA.
IMPORTANT: Overland Storage requires that the Housing Assemblies be removed and
replaced by an Overland Storage authorized service provider. Improper installation may result
in damage which voids existing warranties.
Rear BDA
Front BDA
Housing Assy

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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Unpacking the Retrofit Kit
CAUTION: NEVER handle the BDA with your bare hands. Contamination from the oils on your
skin can cause the BDA to stick. Always wear the provided cotton gloves.
Carefully unpack the new components noting how they are packed in the shipping carton.
When this procedure is complete, repack the old parts in the same container for shipment
back to Overland Storage. NEO 8000e
New screws are provided to replace the ones removed during this procedure.
Verify the kit includes these items:
Required Tools
These tools are required for the proper removal and replacement of the BDAs:
•#1 and #2 Phillips screwdrivers (with torque handle, if available)
•#2 stubby Phillips screwdriver
•5/8" open-ended wrench
•1/8" hex key
•3mm ballhead hex key
Description Bag # Quan. Where Used
Housing Assembly, Upper – 1 Top of BDA
Housing Assembly, Lower – 1 Bottom of BDA
Cotton gloves, pair – 1 For handling the BDA at all times
Screws, M3x8mm flathead Phillips 1 2 FPA bottom rack cover trim pieces
Screws, M3x8mm panhead Phillips 2 9 8 ea. – two access panels;
2 ea. – drive divider
Screws, M4x6mm flathead Phillips 3 4 2 ea. – SPI bracket;
2 ea. – Flex Cable bracket
Screws, M4x8mm flathead Phillips 4 2 Top of FPA
Screws, M4x8mm panhead SEMS Phillips 5 6 4 ea. – top & bottom of Z-Axis;
2 ea. – bottom of FPA
Screws, M4x16mm panhead Phillips 6 4 Top & bottom of Z-Axis
Screw, 1/4" x 5/16" hexhead shoulder 7 1 Track assembly bracket
Washers, 1/4" flat 8 2 Track assembly bracket
Washers, M4 cup 9 4 Top & bottom of Z-Axis
Cable ties, 2.8" 10 3 Rotary Motor and Optical Sensor cables
(includes 1 extra tie)
Cable tie mount, 0.5" x 0.5" 1
Cable ties, 3.9" 11 4 Shuttle flex cable (2 extra ties)
Metal cable retaining clip 12 1 Shuttle flex cable
NEO 8000e Spare Z-Axis Housing
Assemblies Remove & Replace Instructions
(this document)
– 1 To replace these parts

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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•LOCTITE
•Torque Seal
•Flashlight
These tools are required only if you need to level the library:
•6" or 10" Spirit Level (15cm or 25cm)
•10" Adjustable Wrench (260mm)
Prepare the Library for Access
WARNING: This procedure requires the handling of large, heavy, awkward components. Use
care when handling these components to prevent personal injury or damage to the
components.
AVERTISSEMENT: Cette procédure nécessite la manipulation de grosses et lourdes, des
composants difficiles. Faire preuve de prudence lors de la manipulation de ces composants
pour éviter des blessures ou des dommages aux composants.
To simplify the replacement of the BDA, remove the Front Panel Assembly (FPA) and other
key components to provide easier access or visibility to the inside of the library (Figure 1-2).
Figure 1-2: Access Plates and Components That Need To Be Removed
Remove
the FPA
Remove This
Access Plate
Rear ViewFront View
Remove These
Media Drawers
Remove These
Media Drawers
Remove These
Drives/Plates
Remove This
Access Plate

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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Prepare Media Drawers for Removal
WARNING: Exercise care when removing the media drawers from the library units. Fully-loaded
drawers weigh approximately 58 pounds (26.3 kg). Also, when the drawers are removed, the
inner rails extend several inches beyond the back of the drawers. Tilting the drawers can result in the
tapes falling out. Opening several drawers at once is a tip hazard.
AVERTISSEMENT: Soyez prudent lorsque vous retirez les tiroirs de support des unités de
bibliothèque. À pleine charge tiroirs pèsent environ 26,3 kg. En outre, lorsque les tiroirs sont
enlevés, les rails intérieurs s'étendent au-delà de quelques centimètres à l'arrière des tiroirs.
Inclinant les tiroirs peuvent se traduire par des bandes de tomber. Ouverture de plusieurs tiroirs à la
fois un danger pointe.
1. Label all the drawers (so they can be returned to their correct positions).
2. Move the library robotics to the Home position on the floor:
a. At the front panel, select Drawer Access (and password, if active).
NOTE: If the library is partitioned, a partition selection options is displayed before the access
option screen.
b. Select the Lo-Left drawer to unlock it.
c. Pull out the drawer a couple of inches and then push it all the way back in.
The drawer automatically relocks.
d. Press Back.
The library scans the drawer and then the robotics drops to the Home position on
the floor with the picker facing the correct direction to continue.
3. At the front panel, select Drawer Access (and password, if active) > Unlock All to
release all the media drawers.
NOTE: If the library is partitioned, a partition selection options is displayed before the access
option screen.
4. Pull each drawer out about 2 inches (5cm).

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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Power Down the Library
WARNING: Working with a powered NEO 8000e library may cause physical harm and severe
damage to the unit’s circuitry. Always power down a library before removing components.
AVERTISSEMENT: Travailler avec un moteur NEO 8000e bibliothèque peut causer des
dommages physiques et de graves dommages aux circuits de l'appareil. Toujours mettre hors
tension avant de retirer une bibliothèque des composants.
1. At the rear, move the library circuit breakers to the OFF (“O”) position (Figure 1-3).
2. Remove and retain the external power cords.
Figure 1-3: Circuit Breaker and Power Cord Locations
IMPORTANT: The shuttle should now be positioned at the front of the track assembly with the
track assembly on the bottom. If not, contact Overland Technical Support.
Circuit Breakers
Power Sockets

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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Remove Media Drawers
1. Remove each media drawer:
a. Pull the drawer out until it stops.
IMPORTANT: If removing tapes minimize the weight on a partitioned library, be sure to
keep them together on a secure surface and labeled so they can be returned to the
same drawer.
b. Press the drawer release and slide the drawer out a couple of more inches.
c. Carefully remove the drawer and set it aside.
2. For safety, slide the rails back into the unit using the rear release button.
Remove Panels for Access
The BDAs are removed through the front of the library. To access the Rear BDA screws, it is
also necessary to remove some tape drives and panels from the library rear.
CAUTION: Always follow ESD protocols when working with or around the PWA printed circuit
boards.
Front Panel Assembly Removal
1. For the older NEO 8000, remove the trim pieces at the drawer opening bottoms:
NOTE: On the newer NEO 8000e, the bottom FPA screws are located in front of the trim pieces.
a. At the left bottom rack cover trim piece, remove the screw attaching it to the FPA
(Figure 1-4).
Figure 1-4: Remove the Bottom Left Rack Cover Trim
b. Push the trim piece back and up to remove it.
c. Repeat Steps a–b for the right bottom trim piece.
2. On the back side of the FPA, remove the J3 connector at the top of the front panel
PWA (Figure 1-5).
Remove This
Panhead Screw
Bottom Left
FPA
Rack Cover
Trim Piece

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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Figure 1-5: Location of the J3 Front Panel PWA Connector (Rear View)
3. Open the retainer clamps above the PWA to release the J3 cable from the FPA.
4. At the base of the FPA, remove the panhead screws on both sides (Figure 1-6).
IMPORTANT: If you are keeping the old screws as backups, keep the top and bottom
sets of screws separate. The FLATHEAD screws must be used at the TOP to prevent
interference with the operation of the top drawers.
Figure 1-6: Front Panel Assembly Screw Locations
5. Supporting the FPA, remove the flathead screws at the top on each side.
6. Carefully remove the FPA and set it on a secure surface.
Rear Access Panel Removal (for Rear BDA Only)
1. Facing the rear of the library (Figure 1-7), remove and retain:
•The top-right access panel
•The bottom-right access panel
J3
J6
J5
J2
CON2
Unplug J3
Connector
Remove
Flathead
Screw
Remove
Panhead
Screw
Remove
Panhead
Screw
Remove
Flathead
Screw

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Library Preparation
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Figure 1-7: Remove Rear Panels or Drives for Rear BDA Replacement
2. Remove the drives (or drive panels) for drive bays 1, 2, and 11.
3. Remove the drive divider between drive bays 1 and 2.
Next Step
Depending on which BDA is being retrofitted, proceed to one of these chapters:
•For the Front BDA, complete Chapter 2, “Front BDA Retrofit.”
•For the Rear BDA, complete Chapter 3, “Rear BDA Retrofit.”
Remove This
Access Panel
Remove These
Drives/Panels
Remove This
Access Panel

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Chapter 2
Front BDA Retrofit
This chapter focuses on retrofitting the Front BDA. To retrofit the Rear BDA, go to
Chapter 3, “Rear BDA Retrofit.”
Remove the Front BDA
1. Put on the supplied cotton gloves.
IMPORTANT: Always wear the supplied cotton gloves while working around the BDA to
prevent contamination of the guide pole.
2. Disconnect the BDA drive wiring:
a. At the front, remove and retain the two screws securing the Drive PWA cover
(Figure 2-1).
Figure 2-1: Front BDA Drive PWA Location
b. Unplug the J2, J3, and J4 connectors from the Drive PWA (Figure 2-2).
Figure 2-2: Unplug the J2, J3, and J4 Drive PWA Connectors
Drive PWA Cover
NEO 8000e Front Slider
J2 J6
J5
J4 J3
Unplug

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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c. For protection, loosely reattach the cover the Drive PWA using the retained
screws (don’t fully tighten).
3. Detach the track assembly bracket from the BDA (Figure 2-3).
a. If necessary, push the shuttle assembly to the center of the track assembly to
provide room.
b. Using the 1/8" hex key, remove and discard the shoulder screw and washers.
c. Set the track assembly on the floor of the library.
Figure 2-3: Location of Key Items
4. Remove the two screws holding the BDA to the lower mounting bracket.
Figure 2-4: UHA and LHA Mounting Screws
5. Supporting the BDA while wearing the gloves, remove the two screws from the
upper mounting bracket.
Z-Axis BDA
Shoulder
Screw &
Track Assembly
Bracket
Lower
Mounting
Bracket
Shims
(under Belt
sleeve)
2 Washers
FRONT
Move Shuttle
To Center
BDA Mounting
Screws
Lower
Mounting
Bracket
Upper
Mounting
Bracket

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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6. Remove the BDA by moving the top of the BDA to the left, and then move the bottom
slightly to the right (to clear the mounting brackets) and then toward the rear.
7. Lay the BDA on a clean, secure surface.
Change the Housing Assemblies
Remove the Belt
1. Slide the Shuttle Mount Assembly (SMA) up the BDA. If any shims are located under
the SMA (Figure 2-5 on page 2-15), carefully slide them up behind the assembly.
CAUTION: Keep all the shims together and safe. If a shim is damaged or lost, the library
will no longer function correctly.
Figure 2-5: Slide Shims up the BDA
2. At the top Pulley Spring Tensioner assembly (Figure 2-6), hand tighten the Spring
Retainer Guide until it is flush against the Belt Tensioner Ramp.
Figure 2-6: Top Pulley Spring Tensioner
3. Using a 5/8" wrench, continue tightening the Spring Retainer Guide just until the
spring is fully compressed.
CAUTION: Do not overtighten the spring. Stop when the gaps between the coils are no
longer visible.
Shims
Shuttle Mount Assembly
Spring
Retainer
Guide
Spring
Belt
Tensioner
Ramp
Plunger

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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4. At the SMA, carefully and accurately measure the gap between the Fixed belt clamp
and the Tensioner belt clamp (Figure 2-7).
NOTE: The gap measurement is needed to preset the belt tension during the re-installation of
the belt.
Figure 2-7: Shuttle Mount Assembly on BDA
5. Remove the long vertical M4x35mm screw and washer releasing the tension on the
belt clamps.
6. Release the belt: (Figure 2-8).
a. Remove the two screws from the bottom Tensioner clamp.
b. Remove the Tensioner clamp.
c. Remove the two screws from the top Fixed clamp.
d. Remove the Fixed clamp.
Figure 2-8: Belt Backplate Showing Clamp Grooves
7. Remove the belt from the BDA.
CAUTION: Once the belt is removed, the housing assemblies are no longer secured to
the pole and can easily slide off.
With the assemblies secure, pull the loose ends of the belt out through the housing
assemblies.
Measure
This Gap
Fixed
Tensioner
Clamp
Clamp
M4x35mm
Screw
Fixed
Clamp
Tensioner
Clamp
Grooves
Grooves
Overlap
Area
Belt

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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Replace the Upper Housing Assembly (UHA)
IMPORTANT: Because of different BDA guide pole diameters, you must use the existing
plunger from the old UHA to attach the new UHA to the pole. ALWAYS WEAR GLOVES when
working with the BDA pole.
1. Slide the upper UHA off the BDA pole.
2. Remove the plunger from the bottom of the old UHA by removing and retaining the
Phillips screw.
3. Using the retained Phillips screw, attach the old plunger to the new UHA.
4. Using the same orientation as the Lower Housing Assembly (LHA), slide the new UHA
onto the BDA pole.
NOTE: The Mounting Bracket holes for both the UHA and the LHA must be on the same side.
Replace the Lower Housing Assembly (LHA)
IMPORTANT: Because of different BDA guide pole diameters, you must use the existing
plunger from the old LHA to attach the new LHA to the pole. ALWAYS WEAR GLOVES when
working with the BDA pole.
1. Slide the LHA (with motor) off the BDA pole.
2. Remove the motor assembly from the LHA:
a. Rotate the drive’s helical coupling until the cap screws are visible.
b. Using a 7/64" hex key, loosen (but don’t remove) the front cap screw
(Figure 2-9).
Figure 2-9: Location of the Drive Motor Screws
c. Using a 3mm ballhead hex key, remove and retain the three cap screws holding
the motor bracket to the LHA.
d. Slide the LHA off.
3. Remove the plunger from the bottom of the old LHA by removing and retaining the
Phillips screw.
4. Using the retained Phillips screw, attach the plunger to the new LHA.
Remove These
Three Cap Screws
Motor PWA
Drive Motor
Loosen Front Cap Screw
Lower
Housing
Assembly
Motor Bracket

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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5. Attach the new LHA onto the motor assembly:
a. Slide the LHA onto the coupling.
Make sure the shaft flat side is properly aligned under the cap screws.
b. Using a 3mm ballhead hex key, attach the motor bracket to the new LHA using the
three retained cap screws.
c. Using a 7/64" hex key, tighten the front cap screw on the drive’s helical coupling.
6. Using the same orientation as the UHA, slide the new LHA onto the BDA pole.
NOTE: The Mounting Bracket holes for both the UHA and the LHA must be on the same side.
Reinstall the Belt
1. Feed the belt through the housing assemblies:
a. Starting with the UHA, insert the belt in the hole under the Tensioner Ramp and
push it through until it comes out the hole on the other side (Figure 2-10).
NOTE: Remember that the belt teeth face inward toward the BDA.
Figure 2-10: Belt Feed Through the UHA
b. Pull the end coming out of the UHA down to the LHA and insert it in the LHA hole
opposite the belt clamp (Figure 2-11).
Figure 2-11: Belt Feed Through the LHA
c. Push the belt through the LHA until it comes out the hole on the other side.
Mounting
Bracket
Holes
Feed
Belt
Mounting
Bracket
Holes

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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2. Depending on the style of bracket you have, do one of the following:
NOTE: Units with serial numbers below 1R542nnnnn have an older style of bracket and
require a shim between the belt and the Tensioner clamp.
•Newer brackets—place the lower end of the belt into the three Tensioner clamp
grooves and, using the retained screws, reattach the clamp.
•Older brackets—place the lower end of the belt into the three Tensioner clamp
grooves, place the shim spacer on top of the belt (Figure 2-12) and, using the
retained screws, reattach the clamp.
Figure 2-12: Attaching the New Belt to the Tensioner Clamp
3. Place the upper end of the belt into the two Fixed clamp grooves making sure the
last tooth overlaps beyond the grooves.
Figure 2-13: Belt Backplate Showing Clamp Grooves
There should be two teeth in the grooves and one tooth in the overlap area.
4. Using the retained screws, reattach the Fixed clamp.
5. Insert the Tensioner clamp into the SMA Backplate.
6. Using the retained long M4x35mm screw and washer, reconnect the two clamps and
tighten them until the previously measured gap is obtained.
7. Slide the SMA and shims down until they touch the LHA.
8. At the UHA, loosen the Spring Retainer Guide all the way out.
Fixed
Clamp
Grooves
Overlap
Area
Belt
Tensioner
Clamp
Grooves
Shim for
Older Units
Fixed
Clamp
Grooves
Overlap
Area
Belt

NEO 8000e Spare Z-Axis Housing Assemblies Instructions Front BDA Retrofit
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Reinstall the Front BDA
IMPORTANT: Always wear the supplied cotton gloves while working around the BDA to prevent
contamination of the guide pole.
1. Holding the top of the BDA to the left and the bottom slightly to the right, insert the
assembly into the library.
2. Supporting the BDA, secure it in the library as follows:
CAUTION: Use care in installing the new screws that hold the BDA. They are critical to
the positioning and alignment of the BDA. DO NOT STRIP THE THREADS!
a. Use two new M4x8mm panhead SEMS screws to loosely (fingertight) reattach
it to the top mounting bracket.
b. Use two new M4x8mm panhead SEMS screws to loosely (fingertight) reattach
the BDA to the bottom mounting bracket.
c. Tighten all four BDA screws (9 lbs. torque).
d. Apply torque seal to all four BDA screws.
3. Reattach the track assembly to the BDA:
a. Be sure there are two 1/4" washers on the new bracket shoulder screw.
b. Apply LOCTITE to the threads of the new 1/4" x 5/16" shoulder screw.
c. Using the 1/8" hex key and the new screw and washers, reattach the track
assembly bracket to the BDA (Figure 2-14).
Figure 2-14: Location of the 1/8” Hex Shoulder Screw
4. Attach the Drive PWA cables to the new BDA:
a. Remove and retain the two screws on the Drive PWA cover, and set it aside.
Z-Axis BDA
Shoulder
Screw &
BDA Mounting
Screws
Track Assembly
Bracket
2 Washers