System 75 XE to R8si (Blowback)
Task List: System 75 XE to R8si
242
SI Installation and Upgrades
June 2004
Install new control cabinet [75 XE upgrade]
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The new control cabinet already contains a processor circuit pack, and the network control and packet
control mechanism are already in place.
!
DANGER
:
The cabinet may weigh as much as 130 pounds and requires 2 handlers. Use caution
to avoid injury.
1
Position the J58890L control cabinet A at the desired location. This should be as close to the MDF
as possible.
2
Install hole plugs (provided with cabinet) in the holes previously occupied by the two carriage
bolts at the bottom rear of the cabinet.
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Install new control cabinet with earthquake protection [75 XE upgrade]
Return to Task List
The new control cabinet already contains a processor circuit pack, and the network control and packet
control mechanism are already in place.
!
DANGER
:
The cabinet may weigh as much as 130 pounds and requires 2 handlers. Use caution
to avoid injury.
1
Position the J58890L control cabinet A at the desired location.
2
Place the front mounting angle at the location selected for the front of the control cabinet.
3
Using the angle as a template, mark the locations of the 2 mounting bolts.
4
Drill 2 holes 1/2 inch in diameter and 1-1/2 inches deep at the spots marked in
Step 3
.
5
Mount the front mounting angle to the floor (
Figure 47, Front mounting angle — concrete floor,
on page 243).
6
Move the cabinet back into place, and temporarily stabilize the cabinet by attaching the cabinet to
the angle with 2 No. 12-24 by 1/2-inch thread-forming screws.
7
Insert a pencil or marker through the 2 holes (previously occupied with carriage bolts) in the
bottom rear of the cabinet, and mark the floor directly beneath each hole.
8
Remove the 2 screws installed in
Step 6
, and move the cabinet out of the way.
9
Drill 2 holes 1/2 inch in diameter and 1-1/2 inches deep at the spots marked in
Step 7
.
10
Move the cabinet back into place.
