• Optima MR450w BASE 1.5T System Service Methods
  • 5690012-2EN Revision 3
  • Object ID: 00000018WIA30E5AE20GYZ
  • Topic ID: id_13107168 Version: 4.0
  • Date: Feb 21, 2021 9:00:08 PM

Side and top cover removal and installation

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
2 persons for Front Top Cover, 1 for all other CoversNot ApplicableSee Procedure Overview. minutesNot Applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Cut-Resistant Gloves1 Pair---
Nonmagnetic Titanium Service Tool Kit, Small Set1-5112581 or 5113258-
Table 3. Safety

About this task

For some of the Side and Top Covers, other covers must be removed first. This diagram shows the names of the GEM-style covers, which covers can be removed individually and which need other covers removed first, and the estimated removal time for each cover. Installation time is estimated to be the same as the removal time.

Figure 1. Covers and removal, top view

Removing side covers

About this task

This sub-procedure is written for removal of the covers on the left side of the scanner, however the procedure for the right side is similar. On each side, the Side Middle Cover must be removed before the Side Rear Cover or Side Front Cover can be removed.

Removing the left side middle cover

Procedure

  1. (For the Left Side Middle Cover only) Label locations as needed and disconnect all cables except for the top PG cable.
    Note: The PG cable is fiber optic and should be handled with care.
  2. Remove the M6 Allen screw at the bottom of the Left Side Middle Cover.
    Figure 2. Left side middle cover
  3. Notice: When removing the Left Side Middle Cover, carefully thread the top PG cable through the cable opening in the cover.
    Holding the cover on each side, lift cover up and off its two support brackets.
    Figure 3. Left side middle cover top brackets

Removing the left side rear cover

Procedure

  1. If not already done, remove the M6 screw fastening the Front and Rear Covers together.
    Figure 4. Left side rear and front cover junction
  2. Slide the cover toward the rear and lift the cover up and off its two support brackets.

Removing the left side front cover

Procedure

  1. If not already done, remove the M6 screw fastening the Front and Rear Covers together.
  2. Slide the cover toward the front and lift the cover up and off its two support brackets.

Removing top covers

About this task

This sub-procedure is written for removal of the Left Top Cover of the scanner, however the procedure for the Right Top Cover is similar.

  • Before the Left (or Right) Top Cover can be removed, the Left side (or right Side) Middle and Rear Covers must be removed. In addition, the Cable Cover must be removed. For instructions on removing the Cable Cover, see Rear Cover Removal and Installation.
  • Before the Front Top Cover can be removed, either all side covers and both Left and Right Side Top Covers must be removed or the Left and Right Front Covers must be removed. It is highly recommended that you remove the Side and Left and Right Side Top Covers rather than removing the Front Covers due to the complexity of Front Cover removal.

  • Use a side shield to protect magnet components.

Removing left top cover

Procedure

  1. Verify that the Left Side Middle and Rear Covers have been removed as well as the Cable Cover.
  2. Remove the five (5) M10 screws at the base of the Left Top Cover.
    Figure 5. Left Top Cover
  3. Remove the Left Top Cover.

Removing front top cover if side covers and both left and right side top covers are removed (recommended)

Procedure

  1. Remove the four (4) M10 screws on each side of the Front Top Cover.
    Figure 6. Front top cover
  2. With one person holding each side, slide the Front Top Cover toward the rear far enough to lift it off.

Removing front top cover if the front covers are removed (optional)

Procedure

  1. Remove the four (4) M10 screws on each side of the Front Top Cover.
  2. With one person holding each side, slide the Front Top Cover toward the front and lift it off.

Installing top covers

Installing the front top cover if side covers and both left and right side top covers are removed (recommended)

Procedure

  1. With one person holding each side, lift the Front Top Cover and slide it toward the front until it is in position under the front cover.
  2. Install the four (4) M10 Allen screws on each side of the Front Top Cover.

Installing the front top cover if the front covers are removed (optional)

Procedure

  1. With one person holding each side, lift the Front Top Cover and slide it toward the rear until it is in position.
  2. Install the four (4) M10 screws on each side of the Front Top Cover.

Installing the left top cover

Procedure

  1. Lift the Left Top Cover into position, fitting the tabs into the slots of its brackets.
  2. Install the four M10 Allen screws at the base of the cover.

Installing side covers

About this task

This sub-procedure is written for installation of the covers on the left side of the scanner, however the procedure for the right side is similar. On each side, the Side Front and Rear Covers must be installed before the Side Middle Cover can be installed.

Installing the left side front cover

Procedure

  1. Lift the cover tabs at the top over its two support brackets.
  2. Slide the cover toward the rear until it is seated. Make sure its tabs on the front edge fit into the slots.
  3. When both Front and Rear Side Covers are mounted, install the M6 Allen screw to fasten Front and Rear Side Covers together.

Installing the left side rear cover

Procedure

  1. Lift the cover tabs at the top over its two support brackets.
  2. Slide the cover toward the front until it is seated. Make sure its tabs on the rear edge fit into the slots.
  3. When both Front and Rear Side Covers are mounted, install the M6 Allen screw to fasten Front and Rear Side Covers together.

Installing the left side middle cover

Procedure

  1. Move the cover close to position.
  2. Carefully thread the top PG cable through the cable opening in the cover to the outside of the cover.
    Note: The PG cable is fiber optic and should be handled with care.
  3. Lift the cover onto its two support brackets.
  4. Install the M6 Allen screw at the bottom of the cover.
  5. Reconnect all cables.

Finalization

Finalization

No finalization steps.