Lenovo System x3750 M4, Installation And Service Manual

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– When you are working with powered-on electrical equipment, use only one hand. Keep the other
hand in your pocket or behind your back to avoid creating a complete circuit that could cause an
electrical shock.
– When you use a tester, set the controls correctly and use the approved probe leads and accessories
for that tester.
– Stand on a suitable rubber mat to insulate you from grounds such as metal floor strips and equipment
frames.
• Use extreme care when you measure high voltages.
• To ensure proper grounding of components such as power supplies, pumps, blowers, fans, and motor
generators, do not service these components outside of their normal operating locations.
• If an electrical accident occurs, use caution, turn off the power, and send another person to get medical
aid.
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Lenovo System x3750 M4 Installation and Service Guide