Rack safety notices
You need to read the rack safety notices before you install the equipment.
Before you install a rack, rack features, or a system or expansion unit into a rack, read the following safety information.
Attention: If you are installing equipment into a non-IBM rack,
the rack must comply with the Electronics Industries Association (EIA) 310D specifications. Do not
install the equipment into the rack if you do not have a rail kit that is designed for the equipment
in the non-IBM rack. Installing a rail kit that was not designed for your
equipment can damage the equipment or injure you.
(R001 part 1 of 2):
DANGER
Observe the following precautions when
working on or around your IT rack system:
(R001 part 2 of 2):- Heavy equipment–personal injury or equipment damage might result if mishandled.
- Always lower the leveling pads on the rack cabinet.
- Always install stabilizer brackets on the rack cabinet.
- To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices in the bottom of the rack cabinet. Always install servers and optional devices starting from the bottom of the rack cabinet.
- Rack-mounted devices are not to be used as shelves or work spaces. Do not place
objects on top of rack-mounted devices. In addition, do not lean on rack mounted devices and do not
use them to stabilize your body position (for example, when working from a ladder).

- Each rack cabinet might have more than one power cord.
- For AC powered racks, be sure to disconnect all power cords in the rack cabinet when directed to disconnect power during servicing.
- For racks with a DC power distribution panel (PDP), turn off the circuit breaker that controls the power to the system unit(s), or disconnect the customer’s DC power source, when directed to disconnect power during servicing.
- Connect all devices installed in a rack cabinet to power devices installed in the same rack cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power device installed in a different rack cabinet.
- An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock.
CAUTION:
- Do not install a unit in a rack where the internal rack ambient temperatures will exceed the manufacturer's recommended ambient temperature for all your rack-mounted devices.
- Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked or reduced on any side, front, or back of a unit used for air flow through the unit.
- Consideration should be given to the connection of the equipment to the supply circuit so that overloading of the circuits does not compromise the supply wiring or overcurrent protection. To provide the correct power connection to a rack, refer to the rating labels located on the equipment in the rack to determine the total power requirement of the supply circuit.
- (For sliding drawers.) Do not pull out or install any drawer or feature if the rack
stabilizer brackets are not attached to the rack. Do not pull out more than one drawer at a time.
The rack might become unstable if you pull out more than one drawer at a time.

- (For fixed drawers.) This drawer is a fixed drawer and must not be moved for servicing unless specified by the manufacturer. Attempting to move the drawer partially or completely out of the rack might cause the rack to become unstable or cause the drawer to fall out of the rack.
Lift precautions:
