IBM Power System 9040-MR9 Manual page 20

Figure 4. Removing the front cover
10. Complete the following steps to place the system in the service position.
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.
a. If not already removed, remove the shipping screws (A) as shown in the following figure by using a
Phillips screwdriver.
b. Release the side latches (B) by pressing them downward as shown in the following figure.
c. Pull out the system (C) as shown in the following figure. Ensure that any cables do not catch or
bind as you pull out the system.
6 Power Systems: System backplane