JUNOS Internet Software Network Operations Guide: Hardware
210 ! Replacing the Craft Interface
Figure 77: Removing the Lower Impeller Tray
Step 3: Replace the M40e and M160 Router Craft Interface
The craft interface is attached to the upper impeller assembly (front top blower).
Action To remove the M40e and M160 router craft interface, follow these steps:
1. Attach an ESD wrist strap to your bare wrist, and connect the wrist strap to one
of the two ESD points on the chassis.
2. Unscrew the captive screws at the corners of the impeller assembly (the craft
interface).
3. Grasp the impeller assembly and pull it halfway out of the chassis. (See
Figure 78.)
Figure 78: Removing the Front Upper Impeller Assembly
4. Pull the impeller assembly completely out of the chassis.
5. Place the assembly top-side down (the lettering on the craft interface is upside
down) on an antistatic mat on a flat, stable surface.
1023
Craft interface display
Impellers
Screws
CAUTION: If the impeller is still spinning, do not put your fingers or any tool into
the impeller assembly as you pull it out. To avoid injury, wait until the impeller
stops spinning before removing the assembly.
1215
R
Loosen
captive screws (4)
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