Removing The Arbiter - Cisco 7000 Series Hardware Installation And Maintenance Manual

Figure 5-30
Standoffs
The backplane cover is held in place with the following screws:
•
Sixteen 10-mm M3 pan-head screws (two on each flanged side of the cover, five along the top
and five along the bottom flanges)
•
Two standoff screws near the center to the left of the backplane power connection
•
Four 20-mm M3 pan-head standoff screws at each corner of the arbiter cover that extend through
the cover, arbiter, and into the backplane to anchor the arbiter
Be careful not to disconnect any backplane screws that are near the cover flanges.

Removing the Arbiter

Follow these steps to remove the arbiter:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Arbiter
Turn OFF the system power switch and disconnect the power cable from the power source.
Follow Steps 1 and 2 in the section "Removing and Replacing the Chassis Cover Panel" to
open the chassis.
Follow Steps 1 through 7 in the section "Replacing the Fan Tray" to remove the fan tray.
Follow Steps 1 through 5 in the section "Removing and Replacing the Power Harness
Cover" to remove the power harness cover.
Put on an antistatic strap (your own or the one supplied with the spare fan tray) and connect
the equipment end to a power supply handle or any unpainted surface on the chassis body.
Disconnect the power harness from the backplane. (See Figure 5-29.)
Use a number 1 Phillips screwdriver to remove the sixteen 10-mm M-3 Phillips pan-head
screws that secure the backplane cover (2 on each side, 5 along the top, 5 along the bottom,
and 2 standoff screws near the center to the left of the backplane power connection). Be
careful not to disconnect any backplane screws. (The corners of the backplane extend just
beyond the corners of the backplane cover.) Remove only the screws from the aluminum
cover. (See Figure 5-31.)
Use a number 1 Phillips screwdriver to remove the four longer (20-mm) M-3 standoff
screws from the arbiter cover. (See Figure 5-31.) Keep these four longer standoff screws
separate so that you can replace all the screws in the proper place.
Holding the cover at the edge of each side with your fingertips, pull the cover straight out,
away from the backplane (toward you) until it clears the three guide pins at the top and
lower right corners. Put the cover aside.
Replacing Internal Components
Standoffs
Maintenance 5-81