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Maintaining the PTX1000 Fan Modules

Removing a Fan Module from the PTX1000

Before you remove a fan module from a PTX1000, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available:

  • ESD grounding strap

  • Antistatic bag or an antistatic mat

  • Phillips (+) screwdriver, number 1

The fan modules in a PTX1000 are hot-removable and hot-insertable field-replaceable units (FRUs)—you can remove and replace them without powering off the PTX1000 or disrupting routing functions.

CAUTION:

Replace the fan module within 30 seconds of removal to prevent chassis overheating. Before removing the fan module, ensure you have a replacement fan module available.

To remove a fan module from a PTX1000 (see Figure 1):

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.

  2. Using the Phillips screwdriver, loosen the locking screw (3 or 4 turns).
  3. Grasp the handle on the fan module and squeeze the outside of the handle to release the module.
    Warning:

    To avoid 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. Pull firmly to slide the fan module halfway out of the chassis.
  5. When the fan stops spinning, slide the fan module completely out of the chassis.
  6. Place the fan module in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
Figure 1: Removing a Fan Module from a PTX1000Removing a Fan Module from a PTX1000
Note:

When a fan module is removed, the CLI message Fan/Blower is Absent is logged in the system log, and the system raises a minor alarm.

Installing a Fan Module in the PTX1000

Before you install a fan module in a PTX1000, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available:

  • ESD grounding strap

  • #1 Phillips (+) screwdriver, number 1

The fan modules in a PTX1000 are hot-removable and hot-insertable field-replaceable units (FRUs)—you can remove and replace them without powering off the PTX1000 or disrupting routing functions.

CAUTION:

Replace the fan module within 30 seconds of removal to prevent chassis overheating. Before removing the fan module, ensure you have a replacement fan module available.

Note:

The fan module provides airflow out, which is also known as port-to-FRU airflow.

To install a fan module in a PTX1000 (see Figure 2):


  1. Taking care not to touch the connectors, remove the fan module from its bag.
  2. Align the module with the open slot on the FRU end of the PTX1000 and slide it in until it is fully seated.
  3. Using the Phillips screwdriver, tighten the locking screw (3 or 4 turns).
Figure 2: Installing a Fan Module in a PTX1000Installing a Fan Module in a PTX1000