Step 12. Separate the return manifold from the connection set in a dry and clean work area, and keep a
bucket and absorbent cloths around to collect any liquid that may drain out.
Figure 181. Separating the manifold from the connection set
1 17 mm wrench
a.
Loosen the screw that locks the ferrule.
b.
Put the screw down.
c.
Open the clamp.
d.
Remove the ferrule and connection set from the manifold.
Step 13. Repeat
Step 12 on page 177 to the supply manifold.
Step 14. For better sanitation, keep the manifold ports and connection sets dry and clean. Re-install quick
connect plug covers or any covers that protect connection sets and manifold ports.
Step 15. To remove the server from the rack, see
“Remove the server from the rack (friction rails)” on page
82
and “Remove the server from the rack (slide rails)” on page 89.
Step 16. To remove the Processor Neptune
TM
Core Module (NeptCore), see
“Remove the Lenovo Processor
Neptune
TM
Core Module” on page 158
.
After you finish
If you are instructed to return the component or optional device, follow all packaging instructions, and use
any packaging materials for shipping that are supplied to you.
Install the manifold (in-rack system)
Follow the instructions to install the manifold in an in-rack direct water cooling system.
About this task
Important: This task must be operated by trained technicians that are certified by Lenovo Service. Do not
attempt to remove or install it without proper training and qualification.
CAUTION:
The liquid might cause irritation to the skin and eyes. Avoid direct contact with the liquid.
S002
Chapter 5. Hardware replacement procedures 177
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