IBM CS821 Service Manual page 63

7. Lower the vacuum pen tool onto the system processor module to install. Fully press the top of the
pen (A) and hold the pen in the center of the system processor module as shown in Figure 53.
Release the top of the pen to fasten the pen onto the system processor module.
Note: To prevent the system processor module from falling, do not press the tip while holding the
pen and the system processor module. Minimize the time and distance that you have the pen
holding the system processor module in case the vacuum seal releases early.
Figure 53. Lowering the removal tool onto the system processor module
8. Holding the pen, lift the pen and system processor module from the old system backplane socket to
transfer it to the new system backplane socket.
9. Install the system processor module:
a. Lower the pen and system processor module onto the socket as shown in Figure 54 on page 48.
Align the beveled corner of the processor with the beveled corner on the socket. Use care to
lower the tool evenly without tilting the processor.
Note: Do not attempt to slide the tool and the system processor module in any direction while
the system processor module is touching the socket.
Removing and replacing parts
47