• Topic ID: id_13106535
  • Version: 3.2
  • Date: Feb 19, 2020 4:50:01 PM

Cradle Release Pin Height Adjustment

Prerequisites

Table 1 Personnel requirements
Required persons Preliminary requirements Procedure Finalization
1 N/A minutes 25 minutes minutes 5 minutes
Table 2 Tools and test equipment
Item Quantity Effectivity Part number Manufacturer
Non-ferrous medium slotted screwdriver 1 - - -
Table 3 Safety
Notice Image
  • caution
  • Strong Magnetic Field!
  • Ferrous materials can become dangerous projectiles in the presence of the magnetic field produced by the magnet.
  • If you are working on the Table in the magnet room, do not bring any ferromagnetic tools or equipment into the magnet room.
note:

It is recommended that when conducting any service tasks to the table that the table is removed from the magnet room.

This procedure provides instructions on how to adjust the cradle release pin to the correct height.

Procedure

  1. Undock patient table and remove from magnet room.
  2. Remove upper and lower base covers from table. See Patient Table Upper Bellows and Lower Base Side Cover Removal.

    Figure 1. Table Base Covers

  3. Raise the table to its maximum height.
    • warning
    • Risk of personal injury
    • Severe injury can occur if the table is accidentally lowered during maintenance.
    • When doing maintenance with the table in the Up position, make sure the lock bar is safely engaged.
  4. Lower the table lock safety bar.

    Figure 2. Table Lock Safety Bar

  5. Lower the table and verify that all of the table top's weight is resting on the safety bar.
  6. Remove front base cover.
  7. Undock the patient table.
  8. At the same time, press the cradle latch block and push in the cradle release button at the front of the cradle.

    Figure 3. Cradle Removal

  9. While holding down the latch block and pressing the cradle release button, slide the cradle forward enough so that the cradle covers the top area of the cradle latch block. Release the latch block and cradle release button.
    • caution
    • PINCHED FINGERS!
    • FORWARD MOVEMENT OF CRADLE CAN PINCH FINGER WHILE HOLDING DOWN CRADLE LATCH BLOCK.
    • MOVE CRADLE FORWARD SLOWLY AND DELIBERATELY UNTIL BOTTOM EDGE OF CRADLE SUFFICIENTLY COVERS TOP OF CRADLE LATCH BLOCK SO THAT YOU CAN REMOVE YOUR FINGER FROM BLOCK.
  10. Push in the right actuator on the table front base.

    Figure 4. Table Front Base

  11. note:

    Pressing the actuator button engages the secondary cradle latch cable and causes the pin stop to move down flush with the table top surface, allowing the cradle to slide forward.

    Prop up the cradle or remove the cradle from the patient table to perform desired maintenance.

    Figure 5. Prop Up Cradle

  12. Adjust cable so that when push rod button is pushed in 0.375” (9.6 mm), pin stop is flush with pin housing. Use threaded cable adjuster for fine adjustment. Tighten lock nut after adjustment is complete, then cut off excess length of cable.

    Figure 6. Push Rod Button

    Figure 7. Push Rod

    Figure 8. Pin Housing

  13. Raise the table lock safety bar.
  14. Replace the cradle, front base cover, upper and lower base covers.
  15. Return the table to the magnet room and dock the table.
  16. Drive the cradle into the magnet to expose the cradle release pin. Verify that release pin is flush to 1/16 inch (2 mm) below flush when the table is docked.

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.