IBM TotalStorage DS4000 EXP700 Installation, User's, And Maintenance Manual page 105

Lever
Pull ring
Figure 56. Moving the power-supply lever and replacing the failed hot-swap power supply
Complete the following steps to replace the failed hot-swap power supply.
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.
1. Ensure that the ac power switch on the power supply you are installing is in the
off position.
2. Install the power supply in the storage expansion enclosure:
a. Slide the power supply into the storage expansion enclosure. Be sure the
lever is pulled straight out as you slide the power supply into the storage
expansion enclosure (see Figure 56).
b. Close the lever until the pull-ring latch locks in place. Make sure the lever
locks into place in the storage expansion enclosure chassis.
3. Wrap the strain relief clamp around the power cable approximately 20 cm (8 in.)
from the power-supply connection end.
Lever screws
Chapter 3. Installing and replacing devices
73