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ACX7348 Air Filter Unit Maintenance

SUMMARY Learn how to install the air filter unit and replace the air filter.

The air filter unit consists of four parts: the outer filter cover, the air filter, the inner cage, and the cable management brackets. The air filter sits in between the outer filter cover and the inner cage. The air filter unit is installed in the front of the chassis and is secured to the rack rails by captive screws.

Figure 1: Air Filter Unit Air Filter Unit
  1
—

Outer filter cover

  3
—

Inner cage

  2
—

Air filter

  4
—

Cable management brackets
Note:

You must replace the air filter every 6 months.

Install Air Filter Unit in a Two-Post Rack

To install an air filter unit in a two-post rack:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Attach the cable management brackets on each side of the chassis.
    Figure 2: Attach the Cable Management Brackets to the Chassis Attach the Cable Management Brackets to the Chassis
  3. Grasp both sides of the router, lift the router, and position it in the rack, aligning the holes of the mounting brackets with the holes in the front post of the rack. Align the bottom hole in both the mounting brackets with a hole in each rack post, making sure that the chassis is level.
    Figure 3: Mount the Chassis to the Rack Mount the Chassis to the Rack
  4. Secure the mounting brackets to the rack by using four screws appropriate for your rack. Tighten the screws.
  5. Slide the outer cage of the air filter unit into the rails on the cable management brackets until it stops.
    Figure 4: Install the Air Filter Unit Install the Air Filter Unit
  6. Tighten the captive screws to secure the air filter unit to the cable management brackets.

Install Air Filter Unit in a Four-Post Rack

To install an air filter unit in a four-post rack:

  1. After the chassis is already installed on a four-post rack, loosen the thumb screws and pull out the chassis. To install the chassis in a four-post rack, see Install an ACX7348 in a Four-Post Rack.
    Figure 5: Loosen the Thumb Screws and Pull Out the Chassis Loosen the Thumb Screws and Pull Out the Chassis
  2. Attach the cable management brackets on both sides of the chassis.
    Figure 6: Attach Cable Management Brackets on the Chassis Attach Cable Management Brackets on the Chassis
  3. Push the chassis back (with the cable management brackets installed) and tighten the thumb screws to secure the device to the four-post rack.
    Figure 7: Tighten the Thumb Screws Tighten the Thumb Screws
  4. Slide the outer cage of the air filter unit into the rails on the cable management brackets until it stops.
    Figure 8: Attach the Outer Cage Attach the Outer Cage
  5. Tighten the captive screws to secure the air filter unit to the cable management brackets.

Replace the Air Filter

The air filter sits in between the outer filter cover and the inner cage of the air filter unit.

Note:

You must replace the air filter every 6 months.

Remove the Air Filter

To remove the air filter:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. On the front of the router, loosen the captive screws on each side of the air filter unit.
  3. Remove the outer air filter cover by grasping the head of the loosened screws, and pulling the outer cover out. The air filter is located at the center of the air filter unit, and just behind the outer filter cover. See Figure 1.
  4. Pull the air filter straight out from the air filter unit.
    Figure 9: Remove the Air Filter from the Chassis Remove the Air Filter from the Chassis

Install the Air Filter

To install the air filter:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. On the front of the router, loosen the captive screws on each side of the air filter unit.
  3. Grasp the head of the loosened screws, and pull out the outer air filter cover. The air filter is installed at the center of the air filter unit, just behind the outer filter cover. See Figure 1.
  4. Slide the air filter between the outer cover and the inner cage.
    Figure 10: Install the Air Filter Install the Air Filter
  5. Place the outer air filter cover back into its place, and tighten the captive screws to secure the air filter unit.