IBM Power775 Service Procedure page 103

24. On the FDT panel, click the Start Water Pump button.
The Get FDT Status button may be clicked to examine FDT status.
NOTE: The water pump will shut off after 30 minutes of run time.
Approximate time to fill a DE: 60 seconds.
CAUTION: This unit must not be left running unattended, service personnel
should always be overseeing the process. (C038)
25. Inspect the sight glass in hose assembly HA2 while the water pump is running.
The sight glass will indicate the filling status of this step.
Expected sight glass behavior
• Sight glass will start out full of air while the component is being purged of air.
• After some period of time, water will start passing through the sight glass in
an air/water mixture.
• Eventually the sight glass will become full of water, with intermittent small air
bubbles.
Full sight glass definition
• The sight glass is considered full of water when water flow is obvious (white
ball pinned in direction of FDT) and no large bubbles of air are observed.
• If the above description is observed and the water appears cloudy, this is also
considered full.
26. If the water pump has stopped unexpectedly without clicking the Reset FDT button:
Click the Get FDT Status button and review the following.
• Tool mode:
• Tank Level:
Power775 Disk Enclosure Chassis Service Procedure
---- Appendix C: DE Fill Procedure ----
Ready – OK. Check Tank Level.
Tool mode: System/Component Fill Mode – water pump
still running. Proceed to Step 27.
Full, Upper Half, or Lower Half – OK. Check Error Status.
Empty – action required. FDT tank fill required.
Exit this procedure and complete a Fill and Drain Tool
(FDT) Tank Fill Procedure.
Page 103 of 171