Lenovo System x3550 M5 Installation And Service Manual page 11

Statement 5
CAUTION:
The power control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power
cord. To remove all electrical current from the device, ensure that all power cords are disconnected
from the power source.
Statement 6
CAUTION:
If you install a strain-relief bracket option over the end of the power cord that is connected to the
device, you must connect the other end of the power cord to an easily accessible power source.
Statement 8
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.
© Copyright Lenovo 2016, 2017 ix