Lenovo x3530 M4 Installation And Service Manual page 248

• See the specifications in the product documentation for the required torque values for the
wiring-terminal screws.
Important: Be sure to read the multilingual safety instructions on the CD that comes with the server
before you use the product.
To install a hot-swap dc power supply, complete the following steps:
Attention: Only trained service personnel other than Lenovo service technicians are authorized to install
and remove the -48 volt dc power supply, and make the connections to and disconnections from the -48
volt dc power source. Lenovo service technicians are not certified or authorized to install or remove the
-48 volt power cable. The customer is responsible for ensuring that only trained service personnel install or
remove the -48 volt power cable.
Step 1. Read the safety information that begins in "Safety" on page v and "Installation guidelines" on
page 31.
Step 2. Touch the static-protective package that contains the hot-swap power supply to any unpainted
metal surface on the server; then, remove the power supply from the package and place it on
a static-protective surface.
Step 3. Turn off the circuit breaker for the dc power source to which the new power supply will be
connected. Disconnect the power cord from the dc power source.
Step 4. Attach the dc power cable to the new power supply. Make sure the wires are connected securely
to the -48V, ground, and -48V return terminals.
Figure 142. DC power supply rear view
Step 5. If you are installing a hot-swap power supply into an empty bay, remove the power-supply filler
from the power-supply bay.
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Lenovo System x3530 M4 Installation and Service Guide