• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA309E9230GYZ
  • Topic ID: id_15667523 Version: 1.7
  • Date: Jul 13, 2021 4:27:36 PM

ISC Cabinet Coolant Flushing Procedure

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable60 minutes20 minutes
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Convert Coupler BPV353 to NS6D100081-

5732378

-
DVMR Drain Kit1-

3269683

-
Coolant Tank1-

-
Table 3. Consumables
ItemQuantityEffectivityPart numberManufacturer
TowelAs required---
Table 4. Safety
Topic ID: id_SL15171594-1335737

System Power OFF and Confirmation

Procedure

  1. Perform LOTO for ISC. Refer to LOTO for ISC.
  2. Confirm the followings.
    1. CCU pressure meter (black meter) is at zero.
    2. ICC Control Unit TCU display is OFF.
    Figure 1. Confirmation
Topic ID: id_SL15171600-1335737

Flushing Procedure for 3 axis SSSA and SSSPS

Procedure

  1. Connect Convert Coupler (BPV353 to NS6D10008) to DVMR pump.
    Figure 2. Convert Coupler Connection
  2. Remove RF Amp Leak Sensor tray per following steps.
    1. Disconnect two connectors for RF Amp leak sensor.
    2. Loosen two screws.
    3. Move up a little and remove RF Amp Leak sensor tray.
    Figure 3. Remove RF Amp Leak Sensor tray
  3. Close Manifold top valve for supply coolant.
    Figure 4. Close valve for supply coolant
  4. Disconnect all supply hose per following steps.
    1. Hold a towel in one hand below the hose connector and disconnect supply hose for RF Amp.
    2. Disconnect the all supply hoses to the SSSD at the water manifold.
    Figure 5. Disconnect all supply hose
  5. Setup for flushing as following steps.
    1. Connect drain hose to the supply side of drain port.
    2. Insert drain hose to flexible tank.
    Figure 6. Setup 1 for flushing
  6. Setup for flushing as following steps.
    1. Connect Pump hose to Port 1.
    2. Open the Drain Valve.
    Figure 7. Setup 2 for flushing
  7. Use pump to push out coolant until there’s no coolant remaining inside (About 4 times).
  8. Close the draining valve which was opened in Step 6.b.
  9. Disconnect the hose and hand pump from the Port 1.
  10. Repeat Step 6 to Step 9 for the Port 2,3,4.
  11. Open Manifold top valve for 30 sec to fill the coolant in manifold. Then, close it again.
    Figure 8. Valve control
  12. Repeat Step 6 to Step 9. This time, the order is Port 4 -> 3 ->2 ->1.
Topic ID: id_SL15171624-1335737

Flushing Procedure for RF Amp

Procedure

  1. Remove Convert Coupler (BPV353 to NS6D10008) from DVMR pump.
    Figure 9. Remove Convert Coupler
  2. Setup as following steps.
    1. Hold a towel in one hand below the hose connector and connect supply hose for RF Amp.
    2. Disconnect return hose of RF Amp .
    3. Connect Pump hose to return port of RF Amp.
    4. Open Drain valve
    Figure 10. Setup
  3. Use pump to push out coolant until there’s no coolant remaining inside (About 4 times).
  4. Close the draining valve which was opened in Step 2.d.
  5. Remove hose from drain port.
  6. Remove pump hose and connect return hose to return port of RF Amp.
Topic ID: id_SL15171625-1335737

Restoration

Procedure

  1. Restore the all supply hoses to the SSSD at the water manifold.
  2. Restore RF Amp Leak Sensor tray in reverse order of removal.
  3. Open Manifold top valve.
    Figure 11. Open Manifold top valve
Topic ID: id_15802137

Finalization

Procedure

  1. Set the RF Amp Breaker to OFF Position.
    Figure 12. RF Amp Breaker OFF
  2. Restore the System power. Refer to Removing LOTO - ISC.
  3. Wait till pressure meter (black meter) of CCU moves for about 40 seconds.
    Figure 13. pressure meter
  4. Turn the RF Amp Breaker ON
    Figure 14. RF Amp Breaker ON
  5. Refill Coolant. Refer to Refill Coolant .
    Note: Reuse the drained coolant using the red funnel. Note that the funnel has a filter to exclude the unaccepted particles.
    Vent valve with transparent hose is removed from GCU/CCU after end of Q4, 2017 per VCP with engineering analysis. No operation is needed if not exist.
    Figure 15. Restore Coolant