Replacing the Craft Interface ! 211
Chapter 17: Monitoring the Craft Interface
6. Using a Phillips screwdriver, loosen and remove the four screws that secure the
bottom of the craft interface housing to the impeller assembly.
7. Turn the impeller assembly over so that the lettering on the craft interface is
right side up.
8. Using a Phillips screwdriver, loosen and remove the four screws that secure the
top of the craft interface housing to the impeller assembly.
9. Using a Phillips screwdriver, loosen and remove the screws located on the rear
side of the craft interface at the side. There are two screws at each side, located
near the holes for the captive screws that secure the impeller assembly to the
chassis.
10. Grasp the sides of the craft interface and pull it straight off the front of the
impeller assembly.
Step 4: Replace the M320 Router Craft Interface
The craft interface is located on the front of the chassis above the FPC card cage.
Action To remove the craft interface, follow these steps:
1. Attach an ESD wrist strap to your bare wrist, and connect the wrist strap to one
of the ESD points on the chassis.
2. Remove the upper cable guards by loosening the three captive screws on each
cable guard.
3. Completely loosen the four captive screws that attach the craft interface to the
chassis.
4. Grasp the craft interface by the left and right flanges and carefully pull it straight
out of the chassis. (See Figure 79 on page 212.)
NOTE: Removing the front upper fan tray before you remove the craft interface
might make it easier to grasp the craft interface as you remove it. For instructions
on removing a front fan tray, see the appropriate router hardware guide.
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