IBM 3745 130, Maintenance Information Procedures

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3745 FRU Exchange Procedure
EPO Exchange Procedure
Removal Procedure
1. Inform the customer that the 3745 is to be
powered OFF.
2. Press Power Off on the control panel.
3. Open the front and rear door.
4. Switch CB1 OFF. Refer to Figure 4-98.
5. Set OFF the Customer power supply
switch related to the 3745 Install the appro-
priate safety panel which indicates that the
supply should not be turned ON
6. Locate the primary power box and the EPO.
Refer to Figure 4-98 and to Figure 4-99.
7. Refer to Figure 4-100 and to Figure 4-101
on page 4-74:
8. Disconnect the main power cable from the
outlet J3.
9. At the front side and at the rear side of the
primary power box, verify that the cables are
labeled according to their positions. If they
are not, label them. Remove all the cables.
10. Release the ground wire
.1/
from the frame.
11. Remove the four screws
.2/
which secure the
primary power box to the frame. Refer to
Figure 4-100 on page 4-74 and Figure 4-101
on page 4-74.
Figure 4-98. Primary Power Box and CB1 Locations
Rear
E P O
Figure 4-99. EPO Location
Chapter 4. 3745 FRU Exchange
4-73