• Discovery MR750 3.0T System Service Methods
  • 5690009-2EN Revision 4
  • Object ID: 00000018WIA30A30130GYZ
  • Topic ID: id_12373431 Version: 1.6
  • Date: Oct 11, 2021 3:47:41 PM

XGD Fan Box Assembly Replacement

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable20 minutesNot Applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Phillips Screwdriver or Slotted Screwdriver1---
Table 3. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
XGD Fan Box Assembly1-

5183573

-
Topic ID: id_SL1997890-1061793

Removing XGD Fan Box Assembly

Procedure

  1. Perform LOTO on the PGR cabinet. See the MR Service Safety Manual, PN 5452735.
  2. Remove cables J13 and J14 from the XGA to expose the fan.
    Figure 1. Remove Cables from XGA
  3. Remove cable J2 from the fan.
    Figure 2. XGD Fan Box Assembly
  4. Loosen the two screws securing the fan to the cabinet.
  5. Pull the fan out from the cabinet.
Topic ID: id_SL1997895-1061793

Installing XGD Fan Box Assembly

Procedure

  1. Slide in the new fan until it is fully seated in the cabinet.
  2. Tighten the two screws to secure the fan to the cabinet.
  3. Attach cable J2 to the fan.
  4. Attach cables J13 and J14 to the XGA.
Topic ID: id_15267622

Finalization

Finalization

  1. Remove LOTO from the PGR PDU/gradient subsystems. See the MR Service Safety Manual, PN 5452735.

  2. Verify that the fan is operating appropriately.