• Topic ID: id_13105818
  • Version: 3.0
  • Date: Aug 29, 2019 1:57:42 AM

Cradle Assembly Removal and Replacement

Prerequisites

Table 1 Personnel requirements
Required persons Preliminary requirements Procedure Finalization
1 Not Applicable See Procedure Overview minutes Not Applicable
Table 2 Tools and test equipment
Item Quantity Effectivity Part number Manufacturer
Non-ferrous tool kit 1 -

5113258 or 5112581

 -
Wood blocks or similar non-ferrous material for propping up cradle As needed -

N/A

 -
Table 3 Consumables
Item Quantity Effectivity Part number Manufacturer
Loctite 242 0.5 CC -

46-170686P1

 -
Table 4 Replacement parts
Item Quantity Effectivity Part number Manufacturer
16-Channel Cradle Assembly, non-electrical N/A Curved non-electrical table

See FRU Manual

 -
Cradle Assembly N/A Curved 32-channel table

See FRU Manual

 -

Procedure Timing (minutes):

  • Non-electrical table: 15
  • 32-channel curved table: 30

Not all tables are valid on all systems.

Choose the correct procedure for the type of table you are servicing:

note: Photographs are for illustration purposes only and may not show the same table you are servicing.

Removing Cradle from Curved Non-Electrical Patient Table

This procedure describes how to release and remove the cradle from the patient table and how to replace it. Whether you choose to remove the table from the magnet room depends entirely on your service needs.

Procedure

  1. Undock the patient table.
  2. At the same time, press the cradle latch block and push in the cradle release button at the front of the cradle.

    Figure 1. Cradle removal

  3. 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.
  4. Push in the right actuator on the table front base.

    Figure 2. Table Front Base

  5. 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 3. Propping Up Front of Cradle

Removing Cradle from Curved 32-Channel Table

This procedure describes how to release and remove the cradle from the patient table and how to replace it. Whether you choose to remove the table from the magnet room depends entirely on your service needs.

Procedure

  1. Undock the patient table.
  2. At the same time, press the cradle latch block and push in the cradle release button at the front of the cradle.

    Figure 4. Cradle Removal

  3. 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.
  4. Push in the right actuator on the table front base.

    Figure 5. Table Front Base

    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.

  5. Remove the cradle in part or in full, as needed:
    1. If you do not need to fully remove the cradle:

      1. Slide the cradle forward far enough to clear the cradle guide rail latches at the rear of the table.

      2. Use wood blocks (or similar) to prop up the front of the cradle.

        Figure 6. Propping up Front of Cradle

    2. If you need to fully remove the cradle from the table:

      1. Use wood blocks (or similar) to prop up the rear of the cradle at least 12 inches above the table top to expose the cable take-up assembly.

      2. Remove screws and cable cover.

        note:

        These are specific pure brass screws. Do not mix up or replace with standard brass screws.

      3. Remove the four balun screws.

      4. Remove the two coil connector screws.

    3. To replace the cradle, perform these steps:

      1. Replace the two coil connector screws.

      2. Replace the four balun screws.

      3. Replace the cable cover and screws.

        note:

        These are specific pure brass screws. Do not mix up or replace with standard brass screws.

      4. Remove blocks used to prop up the rear of the cradle.

      5. Slide the cradle into place on the table.

Replacing P-Port Covers

Procedure

  1. Each P-port cover (front and rear) is attached by a rubber tether. Remove the P-port cover by gently tugging its tether to pull it out.
  2. Replace with a new P-port cover, gently pushing its rubber tether into place.

Finalization

Procedure

  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.