Changing Fan Assemblies; Before Changing A Fan Assembly - IBM 7133 D40 Operator's Manual

Changing Fan Assemblies

In some circumstances, you can change a faulty fan assembly without the assistance of
a service representative. You can do this only if:
v You are authorized by your organization to do this.
v You have a correct spare fan assembly.
Note: Fan-and-power-supply assemblies that can be installed in 7133 Model 010,
Attention: Do not remove two fan assemblies from the subsystem at the same time.
You do not need to remove power from the 7133 unit when changing a fan assembly.

Before Changing a Fan Assembly

1. Perform the actions described in "Starting to Deal with Problems" on page 35.
2. If you have run diagnostics and obtained a Service Reference Number (SRN) and it
is in the following list, it means that a fan assembly has a fault that can be corrected
by exchanging the fan assembly for a new one:
If the SRN is not in the list, do not change the fan assembly: call your service
representative and report the problem.
020, 500, or 600 units cannot be installed in 7133 Model D40 or T40 units.
SRN
80231
80232
80233
Component
FAN1
FAN2
FAN3
Chapter 4. Dealing with Problems
Fan position
Left (Top in a T40)
Middle
Right (Bottom in a T40)
49