Lenovo 3633 Installation And Service Manual page 13

CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with one
of these parts, contact a service technician.
DO NOT open up the chassis or any other parts of any UPS unit. This will void the unit warranty. Only
replace parts for which a serviceable part exists, that is servicing any UPS unit is limited to FRU / CRU
replacement parts.
Statement 12
CAUTION:
The following label indicates a hot surface nearby.
Statement 26
CAUTION:
Do not place any object on top of rack-mounted devices.
Statement 27
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