Juniper MX2010 Hardware Manual page 474

CAUTION:
in place.
4. Grasp the PSM air filter, and pull the air filter straight out from the chassis.
5. Slide the air filter out of the chassis as shown in
Figure 224: Removing the PSM Air Filter from the Chassis
6. Make sure to re-install the mechanical interlock bracket after you remove the filter. Secure the screws
on the mechanical interlock bracket.
Do not run the router for more than 2 minutes without the air filter
Figure 157 on page 364.
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