Lenovo D1212, Hardware Installation And Maintenance Manual

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Chapter 1. Safety Guidelines
This chapter contains following items:
• “Safe Handling” on page 1
• “Operation” on page 1
• “Electrical Safety” on page 3
• “Rack System Safety Precautions” on page 4
Safe Handling
CAUTION:
Use this equipment in a manner specified by the manufacturer: failure to do this may cancel the
protection provided by the equipment.
• Permanently unplug the enclosure before you move it or if you think that it has become damaged in
any way.
• A safe lifting height is 20U.
• Always remove the Power Cooling Modules (PCMs) to minimize weight before you move the
enclosure.
• Do not lift the enclosure by the handles on the PCMs – they are not designed to take the weight.
• For 5U enclosures, it is recommended that a minimum of three people lift the enclosure using the
lifting straps supplied with the enclosure. Remove all DDIC modules from both drawers and make
sure the drawers are closed firmly and locked shut.
Fully configured 2U12 enclosures can weigh up to 28 kg (62 lb).
Fully configured 2U24 enclosures can weigh up to 25 kg (55 lb).
Do not try to lift the enclosure by yourself.
Operation
Important: Operation of the enclosure with ANY drive carrier modules missing disrupts the airflow and the
drives could not receive sufficient cooling. It is ESSENTIAL that all apertures hold drives before the enclosure
system is used. Empty drive bays must hold dummy drive carrier modules.
Figure 1. Module Bay Caution Label (1)
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