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Number 2 Phillips screwdriver
1. Remove the front air intake grille by loosening the two thumbscrews. The grille is
located immediately below the service modules and above the CMMs.
2. The air filter bracket is mounted at an angle on the ceiling of the plenum. Using both
hands, push down on the front air deflector.
The air filter bracket will drop down once its front edge clears the front support lip.
3. Carefully slide the air filter bracket out .
4. Place the filter bracket upright on a working surface. The filter bracket should be
standing along the long edge of the air deflector.
5. Remove the dirty air filter from the bracket.
a. Using both hands, grasp the air filter element to the right and to the left of the air
filter element holding flange. Your thumbs should be on top of the filter element,
and your fingers should be behind the filter element.
b. Flex the filter element slightly by using your fingers to exert pressure from behind.
c. Once the filter element has bent sufficiently to clear the holding flange, lift the
filter element away from the bottom rail guide.
6. Install the new air filter element into the bracket.
a. Insert the new air filter element into the bottom rail guide.
b. Using both hands, grasp the air filter element to the right and to the left of the air
filter element holding flange. Your thumbs should be on top of the filter element,
and your fingers should be behind the filter element.
c. Bend the filter element slightly by using your fingers to exert pressure from behind.
d. Once the filter element has bent sufficiently to clear the holding flange, push it in
place behind the flange.
e. Examine along all edges to make sure the filter element is in place.
7. Slide the replacement air filter bracket along the top of the CMM. Do not lift the bracket.
Let it rest on the air deflector as you slide it in.
8. Using both hands, apply pressure to the top edge of the air filter bracket and gently
push upwards. Once the front edge clears the front support lip, the bracket will snap
into place.
9. Reinstall the front air intake grille.
You have successfully completed this procedure.
Copyright © 2019, Juniper Networks, Inc.192
BTI7800 Series Hardware Overview and Installation Guide
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