72
Power Supplies
Powering Up the Mainframes
Removing the Mainframe Power Supplies
1.
The power supplies are held in place with a locking handle, which is in turn held in place by
a sprung lever.
2.
To remove a power supply from the mainframe chassis, press down on the sprung lever, and
whilst holding it down, lift the locking handle on the power supply to the horizontal
position (a little pressure will be needed), while still holding down the sprung lever.
3.
As the locking handle lifts to the horizontal position, a pivot releases the power supply from
the slot and allows the power supply to be withdrawn out of the slot.
4.
Before the power supply can be withdrawn completely from the mainframe chassis, the
locking handle has to be placed into the vertical position or closed position to allow it to
pass the front lip of the mainframe.
Replacing the Power Supply
1.
With the locking handle in the closed position, carefully maneuver the power supply
towards the slot in the mainframe.
2.
Hold down the sprung lever to allow the power supply to pass over it and slide into the slot
in the mainframe.
3.
Lift the locking handle to the horizontal position and whilst holding the sprung lever slide
the power supply into the slot until it stops (the power supply should be in position as
shown in the diagram above).
4.
Whilst still holding down the sprung lever, push down on the locking handle and the power
supply will lock into position (see diagram below), release the sprung lever.
Note:
The power supplies are heavy so both hands will be needed to
remove the power supply from the mainframe. DO NOT hold the PSU by the
front handle, place a hand underneath the PSU assembly to support it.
Locking Handle
Sprung Lever
Press down on the sprung lever
and lift the locking handle
Power Supply in
Locked Position
