• Discovery MR750 3.0T System Service Methods
  • 5690009-2EN Revision 4
  • Object ID: 00000018WIA30ACAE20GYZ
  • Topic ID: id_13106738 Version: 4.0
  • Date: Mar 10, 2020 12:16:26 PM

Laser light alignment

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not applicable30 minutesNot applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Non-Ferrous Allen Wrench Set1---
Non-Ferrous Flat Blade Screwdriver1---
Topic ID: id_SL2186083-1051114

System with In room monitor

About this task

If an In Room Monitor is installed, follow the steps in this section. If not, refer to System without In room monitor.

Procedure

  1. Remove the laser light lens cover (top of magnet) by removing two (2) screws Figure 1.
    Figure 1. Remove laser light cover
  2. Press the Alignment button on the control panel to turn on the laser light.
  3. Run a plumb line, using a non-magnetic device, down from the Sagittal and axial (top) laser lights. Verify that both the Sagittal and Axial alignment lights are aiming straight down and aligned with the string Figure 2.
    Figure 2. Running a plumb line
  4. If adjustments are needed, loosen the flat head screws and move the joysticks until the Axial and Sagittal laser lights are aligned properly. See Figure 4.
    Note: Ensure to tighten the head screws after making the required adjustments.
    Figure 3. Adjusting laser lights
    Figure 4. Properly aligned laser lights
  5. Replace the laser light lens cover.
Topic ID: id_SL2186079-1051114

System without In room monitor

About this task

If an In Room Monitor is not installed, follow the steps in this section.

Procedure

  1. Remove the Lens cover for the laser lights.
  2. Turn the laser lights on.
    Figure 5. Laser light configuration
  3. Run a plumb line, using a non-magnetic device and string down from the Sagittal and Axial (Top) laser light. Verify that both the Sagittal and Axial Alignment Lights are aiming straight down (see Figure 6, Figure 7 and Figure 8).
    Figure 6. Alignment light adjustment
  4. When adjusting the Sagittal Alignment Light, the plumb line must run down the front of the Laser Light cover, as shown in the illustration below. The Sagittal Alignment light runs parallel to the magnet in the center of the bore.

    Verify that string is properly aligned with the beam. Then adjust Sagittal Alignment Light. This light runs parallel to the magnet bore.

    Figure 7. Sagittal alignment light
  5. When adjusting the axial alignment light, the plumb line must run down the side of the laser light cover, as shown in the illustration below. The axial light runs perpendicular to the magnet bore.
    Figure 8. Axial alignment light

    Verify that string is properly aligned with the beam. Then adjust axial alignment light. This light runs perpendicular to the magnet bore.

  6. If adjustments are needed, remove the upper display by carefully prying the cover off. See Figure 9 and Figure 10.
    Figure 9. Axial and sagital light adjustment
    Figure 10. Upper laser
  7. For dual laser light configuration, both joysticks will need adjustment. For the single laser light configuration, only adjust light on the left side.
Topic ID: id_14973328

Finalization

Finalization

No finalization steps.