Replacements
- Operator Workspace
- ISC (Integrated System Cabinet)
- ICC (Integrated Cooling Cabinet)
- Magnet Enclosure and Outer Electronics
  - Removing and installing the magnet enclosure covers
    Provides removal and installation instruction for all magnet enclosure covers.
  - Replacing the front endbell
    Removes the front endbell and installs a replacement endbell.
  - Replacing the rear endbell
    Removes the rear endbell and installs a replacement rear endbell.
  - Replacing the 1-piece bridge
    Replace the 1-piece bridge assembly.
    - Applying LOTO - ISC
      Apply LOTO to the Power Distribution Unit (PDU) when servicing this item in the Integrated System Cabinet (ISC). Applying LOTO ensures a safe environment when working on this part.
    - Removing the rear bridge cover
      Remove the rear bridge cover from the rear bridge.
    - Removing the rear bridge inner cover
      Removes the rear bridge inner cover from the magnet enclosure.
    - Removing the 1-piece bridge
      Remove the 1-piece bridge assembly.
    - Installing the 1-piece bridge
      Install the 1-piece bridge assembly.
    - Installing the rear bridge inner cover
      Installs the rear bridge inner cover onto the magnet enclosure.
    - Installing the rear bridge cover
      Install the rear bridge cover onto the rear bridge.
    - Finalizing the 1-piece bridge replacement
      This procedure finalizes the 1-piece bridge replacement.
  - Replacing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp
    Removal and installation instructions for replacing the Dual Drive Transmit Receive Switch (DTRSW) and two-channel preamp in the magnet outer electronics.
  - Replacing the DS Digitized Per Pin Remote Receiver (DPP RRx)
    Removal and installation instructions for replacing the DS Digitized Per Pin Remote Receiver (DPP RRx) in the magnet outer electronics.
  - Replacing the DS Digitized Per Pin (DPP) Receiver Distributor (Rx Dist)
    Removal and installation instructions for replacing the DS Digitized Per Pin (DPP) Receiver Distributor (Rx Dist) in the magnet outer electronics.
  - Replacing the table interface assembly
    Removal and installation instructions for replacing the table interface (TIF) assembly in the magnet outer electronics.
  - Replacing the Operator Control Panel (OCP) and the In-Room Display (IRD)
  - Replacing the IRD fiber optic cables
    The procedure for replacing the IRD fiber optic USB and DP cables.
  - Replacing the speaker
    Removes the speaker in the rear endbell and installs a replacement speaker.
  - Replacing the laser bracket assembly
    This procedure provides steps to replace the laser bracket assembly.
  - Replacing the bore light
    Removes a bore light from the body coil and installs a replacement bore light.
  - Replacing the RF body coil air flow sensor
    Replace the RF body coil air flow sensor.
  - Replacing the heat exchanger temperature sensor
    Follow this procedure to replace the heat exchanger temperature sensor.
  - Replacing the GE Illuminated Logo
    Removes the illuminated GE logo from the magnet front cover and installs a replacement logo.
  - Replacing the ambient temperature sensor
    Replacing an ambient temperature sensor is a complex process, which includes tasks to fulfill the required conditions as well as tasks for finalizing the installation after replacing the sensor.
  - Replacing the 1-pc bridge trim
  - Body Coil Gap Foam Replacement
  - Body Coil Mount and Base Plate (Front) Replacement
  - Body Coil Mount and Base Plate (Rear) Replacement
- Coil Replacement
- Patient Table
- MDP
- Pen Panel

SIGNA™ Hero 3.0T Service Methods
5852800-8EN Revision 1.0
Object ID: 00000018WIA3081A760GYZ
Topic ID: id_2032352 Version: 1.22
Date: Jan 19, 2022 12:09:39 PM

Installing the 1-piece bridge

Prerequisites


Tools and test equipment
Item	Quantity	Part number	Manufacturer
Nonmagnetic Titanium Service Tool Kit, Small Set	1	5113258	-


Replacement parts
Item	Quantity	Part number	Manufacturer
One Piece RTM Motus Bridge Assembly - RIO Enclosure	1	5948000-100	-

Procedure

From the patient end of the magnet, with a partner, lift the 1-piece bridge assembly into place, position the rollers on the rail, and slide the bridge assembly partially into the bore.

Figure 1. Position the 1-piece bridge

CAUTION

Risk of product damage

Risk of damage to the 1-piece bridge rollers

Do not push the bridge into the bore unless a second person lifts the bridge on the service end and gently lowers as it comes off the rails.

The second installer should move to the service end. From the patient end, slide the 1-piece bridge into the bore while the installer on the service ends lifts the bridge and carefully lowers the rollers as they come off the rails.
On the service end, connect cable M3507 to the end of the travel switch.

Figure 2. Connect M3507 to the travel switch
1 Travel switch connector
On the service end, install the UTNS antenna assembly to the 1-piece bridge.
1. Position the BNC adapter on the bracket.
2. Install the washer.
3. Install the nut.
Figure 3. UTNS antenna components
1 BNC adapter
2 Washer
3 Nut
4 UTNS antenna
Install the eight washers, eight screws, and eight caps (four on each end) to secure the 1-piece bridge assembly.

Figure 4. Attachment locations
1 Washers, screws, caps
2 Washers, screws, caps
To determine the scan range configuration:

(For replacement procedures) Inspect the 1-piece bridge being replaced to determine if the hard stop support block is installed. Make sure the scan configuration is correctly set following the finalization procedures in Setting the patient table scan range configuration.

(For new installations) Follow the procedures in Running ICW Installation Mode, and reference Setting the patient table scan range configuration.

Figure 5. Hard stop support block location
1 Hard stop support block