• SIGNA MR355 / SIGNA MR360
  • Service Manual
  • 5856356-3EN Revision 5.0
  • Basic Service Documentation. Copyright General Electric Company.
  • Object ID: 00000018WIA30DE5F20GYZ
  • Topic ID: id_13106576 Version: 1.4
  • Date: Jul 6, 2019 12:17:30 AM

Replacing BRM RF Body Coil

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
3Not Applicable3 to 5 hoursNot Applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Personal Protection Equipment (PPE)1 set each---
Protective Gloves1 pair each---
Safety Glasses1 pair each---
Safety Shoes1 pair each---
Long Sleeve Shirt and Pants1 set each---
Nonmagnetic Tool Kit 1-

46-320273G4

-
1-

2164744-2

-
Authorized Personnel Floor Sign1-

2289812

-
Table 3. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
1.5T HDx new color Short Body RF Coil - Yellow Black Case, ROHS version1-

2208999-17

-
Table 4. Safety
Table 5. Required conditions
ConditionReferenceEffectivity

Perform LOTO. See the MR Service Safety Manual, PN 5452735.

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For preliminary steps to the actual RF coil replacement for systems with a Cx or LCC magnet, refer to Defective Gradient Coil Removal.

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About this task

The RF body coil cartridge is a FRU that mounts inside the gradient coil (also a FRU), and is available in 1.0T and 1.5T versions. If the RF coil fails, it must be removed from the gradient coil and replaced with a new one. Since the replacement procedures for the RF and gradient coils are closely related, references are made below to the epoxy-filled gradient coil replacement procedure where the instructions for removal of like parts (for example, bridge removal) can be found. Although some tasks (such as connecting/disconnecting various cables, etc.) can be accomplished by one person, replacing a failed RF body coil requires three people.

Unpacking BRM RF Body Coil

About this task

A new RF body coil is packed in a cylindrical shipping container that is strapped inside a combination pallet and outer shipping box. It rests on a pair of installation tracks. The shipping container never leaves the box; the RF body coil is removed from this combination. Included are two extra installation tracks used in the gradient body coil to assist in the RF coil exchange.

Procedure

  1. To perform all necessary steps for this part of the procedure, refer to each of the illustrations that follow.
    Figure 1. Unpacking New BRM RF Body Coil
    Figure 2. Separating BRM RF Body Coil from Shipping Container
    Figure 3. Shifting Installation Tracks in BRM Shipping Container
    Figure 4. Removing BRM RF Body Coil from Shipping Container
    Figure 5. Placing Extra Installation Tracks Under BRM RF Coil
    Figure 6. Attaching Tracks to Gradient Body Coil
    Figure 7. Sliding Out RF Body Coil onto Tracks
    Figure 8. Sliding New RF Coil into Place
    Figure 9. RF Coil Attachment and Track Removal
    Figure 10. Centering BRM RF Coil in Gradient Coil
  2. Complete the remaining installation steps per New Gradient Coil Installation.

Preparing Failed BRM RF Body Coil for Shipment

Procedure

  1. Refer to the illustrations below for instructions on packing the failed BRM RF body coil for shipment.
    Figure 11. Loading Failed RF Coil into Shipping Container
    Figure 12. Fastening Installation Tracks to Shipping Container
    Figure 13. Securing BRM RF Coil in Shipping Container
    Figure 14. Closing BRM RF Shipping Container and Box
  2. Ensure shipping container is ready for shipment.

Finalization

Procedure

  1. Clean up the site in preparation for patient scans.
  2. Run head and body test scans to ensure proper operation.