• Discovery MR750 3.0T System Service Methods
  • 5690009-2EN Revision 4
  • Object ID: 00000018WIA30990130GYZ
  • Topic ID: id_12374939 Version: 1.3
  • Date: Jul 9, 2020 10:11:58 AM

Power Strip Replacement

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable minutes90 minutes15 minutes
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Non-magnetic Service Tool Kit1-

5112581

-
Hoist Service Kit1-

5196226

-
Table 3. Consumables
ItemQuantityEffectivityPart numberManufacturer
Tie WrapsAs needed (based on drawing)---
Table 4. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
Power Strip1 (see FRU manual)---
XGA and XPS Lifting Bracket1 (see FRU manual)---
Table 5. Required conditions
ConditionReferenceEffectivity

PDU must be powered off.

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Procedure

  1. Perform LOTO on the PGR PDU. See the MR Service Safety Manual, PN 5452735.
  2. Remove the XPS Z unit from the PGR cabinet according to XPS Replacement.
    Figure 1. XPS Z Unit
  3. Unhook the power strip cable plug from the top of the PDU near the back.
    Figure 2. PDU Panel
  4. Remove the tie wraps.
  5. Remove the power cable from the back of the PDU.
  6. Unhook the power strip and remove it from the PGR cabinet.
    Figure 3. Power Strip in PGR Cabinet
  7. Install the new power strip and reroute the cable.

    Originally, the cable from the power strip was routed toward the back of the PGR cabinet. When replacing the power strip, route the cable toward the front of the cabinet for easier access. In the illustration below, the blue line represents the power strip cabling.

    Figure 4. Routing of Power Strip Cabling with Tie Wrap Locations
  8. Secure the power strip cable to the cabinet with the use of tie wraps at the top and along the side rails of the cabinet. Tie wrap the power strip cable to the cabinet separately; avoid joining with any existing cables.
  9. Plug the end of the power strip cable into the outlet labeled RECON on top of the PDU near the back (see Figure 2).
  10. Restore the XPS Z unit into the PGR cabinet according to XPS Replacement.
  11. Remove LOTO from PGR PDU/gradient subsystem. See the MR Service Safety Manual, PN 5452735.

Finalization

Perform a TPS reset.