• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA30A9D010GYZ
  • Topic ID: id_2003000 Version: 5.1
  • Date: Jan 19, 2022 2:59:08 AM

Installing the rear endbell

Installs the rear endbell onto the magnet.

Prerequisites

Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1-30 minutes-
Tools and test equipment
ItemQuantityPart numberManufacturer
Nonmagnetic Titanium Service Tool Kit, Small Set15113258-
Required conditions
Left hand rear cover is installed.
Right hand rear cover is installed.

Procedure

  1. Align rear endbell with rear of magnet with patient cooling air connection pointing up.
  2. Install the rear endbell onto the magnet.
  3. Install six M10 x 25 Socket Head Cap Screws.
    Figure 1. Rear endbell screws
  4. Check the gap between the endbell and the RF coil at the 12 o'clock, 9 o'clock, and 3 o'clock positions using a 3 mm and 4 mm hex wrench. The gap should be 3 mm to 4 mm. If the gap between the rear endbell and RF coil is less than 3 mm or greater than 4 mm, adjustment is required.
    Figure 2. Rear endbell gap check locations
    112 o'clock position
    29 o'clock position
    33 o'clock position
  5. Rear endbell gap adjustment
    1. Note the areas that need adjustment and determine how much adjustment is needed.
    2. Remove the rear endbell and set aside.
    3. Loosen the nut on the standoffs that will be adjusted, typically those nearest the area where the gap is incorrect. You may need to remove additional screws.
    4. Insert a screwdriver in the nylon screw and turn clockwise to reduce the gap or counterclockwise to increase the gap.
    5. Tighten the silver nuts and reinstall the screws that were removed.
    6. Reinstall the endbell and recheck the gap. Repeat until the gap is 3 mm to 4 mm.
    Figure 3. Nylon screw adjustment (patient end shown, adjustment is the same)
  6. Connect the cable connector to the speaker.
  7. If previously installed, connect patient cooling air hose to the rear endbell.
    Figure 4. Rear endbell connections
    1Patient cooling air connection
    2HEX temperature sensor connector
    3Body coil cooling air connections
  8. Connect the cooling air hoses to the body coil.
  9. Connect the HEX temperature sensor connector.
  10. If previously installed, connect the cable connectors to the end of travel switch.
    Figure 5. Rear bridge end of travel connector