• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA3047C230GYZ
  • Topic ID: id_15667045 Version: 1.9
  • Date: Jul 13, 2021 4:27:36 PM

Patient Blower Cleaning and Replacement

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable60 minutes15 minutes
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Standard Tool1---
Hoist Service Kit1-

5196226

-
Table 3. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
Patient Blower 1-

Refer to FRU Manual

-
Table 4. Safety
Table 5. Required conditions
ConditionReferenceEffectivity

ISC Power must be turned OFF. Refer to Lockout / Tagout for ISC.

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Procedure

  1. Open ICC Cover and remove it.
    Figure 1. Remove cover
  2. Visually check the patient blower filter. If cleaning or replacement is necessary, perform the following procedure.
  3. Setup Hoist. Refer to Hoist Setup
    Figure 2. Setup Hoist
  4. Go to Scan Room and disconnect air hose from Patient Blower.
    Figure 3. Remove Blower Hose
  5. Remove four screws fixing Patient Blower at rear panel.
    Figure 4. 4 screws
  6. Go to Machine Room and disconnect 3X1 cable from Control Unit.
    Figure 5. Cables at CCU
  7. Loosen two screws and carefully withdraw Patient Blower from the chassis.
    Figure 6. Withdraw Blower
  8. Attach the lifting eye bolt on the top of Patient Blower.
    Figure 7. Eyebolt
  9. Hook the winch from the hoist kit to the lifting eye bolt. Note: Make sure the hook is seated in the lifting eye bolt. If not, the weight can shift causing harm to the equipment or engineer.
    Figure 8. Hook
  10. Loosen four screws connecting Patient Blower and slide the tray front a little to release the screw.
    Note: Screw hole of tray is keyhole type. No need to remove the four screws.
    Figure 9. Remove screws
  11. Ratchet the winch to tighten the chain.
    Figure 10. Ratchet
  12. Push the slide tray into the cabinet before lowering Patient Blower.
    Figure 11. Push tray
  13. Use the hoist and slowly lower the Patient Blower to the floor.
    Figure 12. Lower Blower
  14. If cleaning is needed, clean the filter outside of the magnet room and reinstall the filter as listed in steps 16-19.
  15. If the filter needs to be repalced, transfer the four screws below the blower from old one to new one.
  16. Attach the lifting eyebolt to the top of the new Patient Blower.
  17. Ratchet the winch to tighten the chains and begin lifting the unit.
  18. Restore the Patient Blower by reverse order of removal.
  19. Disassemble the hoist kit and restore it to the stored location.

Finalization

  1. Restore the power. Refer to Removing LOTO - ISC.
  2. Check that Patient Blower is correctly running.
  3. Perform check scan.