Juniper MX10008 Hardware Manual page 250

NOTE: When replacing the fans or SIBs at 40°C chassis ambient temperature, ensure that the fans
run at 100% fan speed for at least 10 minutes before replacing the fans or SIBs.
Use the test chassis fan tray 0 speed full-speed and test chassis fan tray 1 speed full-speed commands
to set the chassis fans to 100% speed.
Ensure you have the following equipment on hand before installing an SFB:
Electrostatic bag or antistatic mat
Electrostatic discharge (ESD) grounding strap
Replacement SFB
To install an SFB:
1. Place an electrostatic bag or an antistatic mat on a flat, stable surface.
2. Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the
strap to the ESD point on the chassis. There is an ESD point located next to the protective earthing
terminal and below PSU 5 on the MX10008 rear panel (see
Figure 148: ESD Point on MX10008 Chassis Rear
1 ESD point
—
3. Either remove the failing SFB and store it in an electrostatic bag or on an antistatic mat (see
an MX10008 Switch Fabric Board" on page
plate and pulling the panel straight out (see
Figure 148 on page
248) or remove the cover panel by grasping each side of the
Figure 149 on page 253 for an example using the MX10008).
252).
"Removing
252