• Optima MR450w BASE 1.5T System Service Methods
  • 5690012-2EN Revision 3
  • Object ID: 00000018WIA30C3BE20GYZ
  • Topic ID: id_13106534 Version: 3.1
  • Date: Jul 30, 2020 3:40:07 PM

Cradle/LPCA release adjustment

Prerequisites

Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1-15 minutes5 minutes
Tools and test equipment
ItemQuantityPart numberManufacturer
Non-ferrous standard head screwdriver1--

About this task

The actuator on the LPCA must be set so that it presses a button on the cradle to mechanically release the cradle from the patient table, allowing it to move forward into the magnet bore.

Procedure

  1. Remove the LPCA cover.
    Figure 1. LPCA Cover Screws
  2. To properly adjust the cradle release, loosen the lock screw on the plunger.
    Figure 2. Adjusting the plunger
    Figure 3. Cradle release button
    Figure 4. Distance between cradle release button and actuator
    Item Description
    1Cradle
    2Cradle release button
    3Distance between cradle release button and actuator end is 1 mm ± 1 mm when table is docked
    4Actuator
    5LPCA
    Note: The actuator must be positioned 1 mm ± 1 mm from the front surface of the cradle when the LPCA is attached to the cradle. If the actuator is positioned too far away from the cradle, it will not sufficiently engage the cradle release button and the cradle will not move. Likewise, if the actuator is positioned too far into the cradle, the LPCA will bind with the cradle, resulting in a loud noise whenever the LPCA detaches from the cradle as the table is lowered. Fine-adjust the actuator as necessary.
  3. Rotate the threaded actuator in or out as needed, then re-tighten the lock screw.
  4. Replace the LPCA cover.

Finalization

  1. Dock the table.
  2. Confirm that the cradle release functions properly.
  3. Confirm that the LPCA connects to the cradle and that the cradle can move into the bore.