• Topic ID: id_17423482
  • Version: 3.0
  • Date: Jan 20, 2020 8:33:36 PM

Table Sponge Replacement

Prerequisites

Overview

Procedure

    Notice Image
    • notice
    • Understand and follow the Safety Guidelines Manual.
  1. Move the cradle to the OUT mechanical limit position by hand.
  2. Raise the Table to its highest position.
    note:

    If the Table up/down movement is inoperative, use the service power cable to raise the Table (refer to Enforced Table Elevation).

  3. "Remove power from Table by turning off “120VAC”, “Axial Drive” and “HVDC” switches on the service switch panel."
  4. Remove the following covers and component from the Table:
    note:

    When replacing the Sponge R, remove the Top cover R only. When replacing the Sponge L, remove the Top cover L only.

    Figure 1. Removing the Cradle and Top Cover

  5. Remove the two screws and Rail Cover Front.
    6. Notice Image
    • notice
    • The table sponge is being installed with any shims to adjust the sponge location. So, when removing the table sponge, write down the numbers of shims set under the sponge mounting bolt(s).
  6. Remove the two (or one) bolt(s) and table sponge.

    Figure 2. Table Sponge Removal

    Some tables might contain the old type of sponge, which is installed using one screw. In this case, the sponge bracket must be replaced before installing the new sponge which is installed using two screws.

    Figure 3. Table Sponge

  7. Install the new sponge with shims of which number is recorded in previous step. Temporarily tighten the mounting bolts.
  8. Temporarily install the top cover, then verify that:

    • The sponge is NOT interfered with the top cover.

    • The distance between the edges of sponge and top cover is approximately 5mm.

    Figure 4. Table Sponge Installation

  9. If the sponge does not meet the specification above, adjust the sponge location using shims (in the sponge FRU kit).

    Figure 5. Table Sponge Positioning

  10. Temporarily place the cradle onto the table, then verify that:

    The clearance between cradle and sponge is 7mm or less.

    If it is not, remove the cradle and adjust the sponge horizontally by loosening the mounting bolts.

    Figure 6. Table Sponge and Cradle Position

  11. Remove the cradle from the table and tighten the sponge mounting bolts securely.
  12. Install the removed parts in the reverse order of removal.

Finalization

No finalization steps.