HP R1500 - UPS XR User Manual page 18

CAUTION: Always plan the rack installation so that the heaviest item is on the bottom of the rack.
Install the heaviest item first, and continue to populate the rack from the bottom to the top.
Install the mounting rails
1.
page 14).
With one person on each side of the carton, lift the chassis and lower it to the floor in front of the rack.
2.
Install the mounting ears on the chassis using the screws provided.
3.
With one person on each side, lift the chassis to rail level and slide the chassis on the mounting rails.
4.
Attach the chassis to the rack using the supplied screws.
5.
If using the rear mounting brackets, be sure that the bracket tabs are fully inserted into the rear panel
6.
cutouts, then tighten the brackets.
("Installing the mounting rails" on page 56, "Installing the mounting rails" on
UPS installation 18