Lenovo ThinkStation P520 30BE User Manual page 120

Although there are no moving parts in your computer after the power cord has been disconnected, the
following warnings are required for your safety.
CAUTION:
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,
seek medical care immediately.
DANGER
Disconnect all power cords from electrical outlets before removing the computer cover or any part
that has the above label attached.
DO NOT disassemble components that have the above label attached. There are no serviceable parts inside
these components.
Your product is designed for safe use. However, hazardous voltage, current, and energy levels are present
inside any component that has this label attached. Disassembling of these components might cause fire or
might even result in death. If you suspect a problem with one of these parts, contact a service technician.
To remove or install the power supply assembly, do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 59.
2. To remove the power supply, pull the handle on the power supply assembly and pivot it downward as
shown. Then, pull the entire power supply assembly out of the chassis.
Figure 99. Removing the power supply assembly
3. Ensure that the new power supply assembly is the correct replacement.
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P520 User Guide