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Replace Fans on the SRX4120

Maintaining the SRX4120 includes removing and installing the fans.

Fan modules in the SRX4120 are hot-removable and hot-insertable field-replaceable units (FRUs). You can remove and replace the fan modules without powering off the SRX4120 or disrupting the device functions.

Ensure that you have the following parts and tools:

  • An electrostatic discharge (ESD) grounding strap

  • An antistatic bag or an antistatic mat

  • A replacement fan module

  • A blank cover panel (in case you're not replacing the fan module)

  • A screwdriver

Ensure that you understand how to prevent electrostatic discharge (ESD) damage.

Remove Fans from the SRX4120

Remove the SRX-FAN-1RU-AFO from the SRX4120

CAUTION:

Do not remove a fan unless you have a replacement fan available.

To remove the SRX-FAN-1RU-AFO from the SRX4120:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
  2. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  3. Loosen the captive screws on the front faceplate of the fan module by using your fingers. If you can't loosen the captive screws by using your fingers, use the screwdriver.
    Warning:

    To prevent injury, do not touch the fan with your hands or any tools as you slide the fan module out of the chassis—the fan might still be running.
  4. Grasp the handle on the fan module and pull it firmly to slide the fan module out of the chassis.
  5. Place the fan module in the antistatic bag or on the antistatic mat.

Install Fans in the SRX4120

Install the SRX-FAN-1RU-AFO in the SRX4120

To install the SRX-FAN-1RU-AFO in the SRX4120:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
  2. Remove the fan module from its bag.
  3. Hold the handle of the fan module with one hand and support the weight of the module with the other hand. Place the fan module in the fan module slot on the rear panel of the switch and slide the module in until it is fully seated.
  4. Tighten the captive screws on the faceplate of the fan module by using your fingers. If you can't tighten the captive screws by using your fingers, use the screwdriver.