
Figure 39. Horizontal Bus Bar Assembly Screws
8 screws with
conical washers
J25
J6
J7
J8
J9
J10
J1
J2
J3
J4
J5
8. Disconnect control cables P1 through P6 from the environmental distribution board. If necessary, slide PDU
out to disconnect power cables.
9. Slide the power supply shelf out of the cabinet frame to make the connectors on the rear of the power supply
rack are accessible.
Cables may need to be fed from the rear as the power supply shelf is pulled out.
10. Disconnect the control cables (6) and power cables (6) from the back of the power supply rack and make sure
all are labeled.
11.
CAUTION:
●
Heavy equipment
●
The power supply rack and the horizontal bus bar assembly weigh 118 lbs (54 kg). The power
supply rack must be removed with the assistance of a qualified personnel. Failure to do so may
result in personal injury or equipment damage.
With the assistance of qualified personnel, use proper lifting techniques to place the power supply rack on a
sturdy work surface.
2.9.2
Install a Power Supply Rack
Prerequisites
Tools Required:
T25 Torx driver
T30 Torx driver
IP25 Torx+ driver (14)
Large slotted screwdriver
Time Required:
20 - 25 minutes
IMPORTANT: Any time fasteners are removed from the main power buss structure, like to replace a back
plane or a rectifier rack, there must be an initial torque and a torque verify performed by a second person
during reassembly.
System Cabinet Procedures
48