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Removing and Installing MX10016 Cooling System Components

 

An MX10016 router has two independent, field-replaceable fan trays. Fan trays must be replaced within the duration mentioned in Table 1.

Table 1: Replacement Duration for the Fan Tray of an MX10016

Chassis Ambient Temperature

Duration

27°C

3 minutes

35°C

2 minutes 46 seconds

40°C

2 minutes

Note

When replacing the fans or SIBs at 40°C chassis ambient temperature, ensure that the fans run at 100% fan speed for at least 10 minutes before replacing the fans or SIBs.

Use the test chassis fan tray 0 speed minutesfull-speed and test chassis fan tray 1 speed full-speed commands to set the chassis fans to 100% speed.

To install or remove the fan trays and fan tray controller, see the following sections:

Removing an MX10016 Fan Tray

An MX10016 has two independent, field-replaceable fan trays. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the router is running without turning off power to the router or disrupting routing functions.

Caution

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

Each fan tray is installed vertically on the rear side of the chassis.

Before you remove a fan tray:

  • Ensure you understand how to prevent ESD damage (see Prevention of Electrostatic Discharge Damage).

  • Ensure that you have the following parts and tools available to remove a fan tray:

    • Electrostatic discharge (ESD) grounding strap

    • A Phillips (+) screwdriver, number 1 or 2 (optional), for the captive screws



Caution

A fan tray can be removed and replaced while the router is operating. Fan trays must be replaced within the duration mentioned in Table 1.

To remove an MX10016 fan tray see Figure 2):

  1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the rear left side of the chassis (see Figure 1).
    Figure 1: ESD Point on the Rear of an MX10016
    ESD Point on the Rear of an
MX10016
      1
    ESD point
     
  2. Loosen the four captive screws either by unscrewing with your thumb and forefinger or by using a Phillips screwdriver.
  3. Grasp the top and bottom handles of the fan tray and pull the fan tray out by about 3 in. (7.6 cm) (ee Figure 2).
    Figure 2: Removing a Fan Tray from an MX10016
    Removing a Fan Tray
from an MX10016
  4. Tilt the top of the fan tray forward.Caution

    See the heat symbol on the fan tray. The fan tray handle and its surfaces, including the power supply handles may be hot. Wear proper protective, heat-resistant, gloves while removing the fan tray.

  5. Using both hands, lift the fan tray out of the slot and rest it on a flat surface with the handles to the side.Caution

    Fan trays must be replaced within the duration mentioned in Table 1.

Installing an MX10016 Fan Tray

An MX10016 chassis has two independent, field-replaceable fan trays. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the router is running without turning off power to the router or disrupting routing functions.

Before install a fan tray:

Ensure that you have the following parts and tools available to install a fan tray:

  • Electrostatic discharge (ESD) grounding strap

  • A Phillips (+) screwdriver, number 1 or 2 (optional), for the captive screws

  • A replacement fan tray

Caution

A fan tray can be removed and replaced while the router is operating.Fan trays must be replaced within the duration mentioned in Table 1.



To install an MX10016 fan tray (see Figure 4):

  1. Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the rear left side of the chassis (see Figure 3 ).
    Figure 3: ESD Point on the Rear of an MX10016
    ESD Point on the Rear of an MX10016
      1
    ESD point
     
  2. Grasp the top and bottom fan tray handles, and align the bottom of the fan tray with the bottom of the fan tray slot.
  3. Rest the bottom edge of the fan tray in the slot, and slide the fan tray into place so that the fan tray is fully seated.
  4. Tighten the captive screws on the faceplate of the fan tray by using your fingers. If you are unable to tighten the captive screws by using your fingers, use the screwdriver.
Figure 4: Installing a Fan Tray in an MX10016
Installing a Fan Tray
in an  MX10016

Removing an MX10016 Fan Tray Controller

For each of the two fan trays, there is a fan tray controller. Each controller is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace one fan tray controller while the router is running without turning off power to the router or disrupting routing functions. See Figure 5.

Figure 5: Fan Tray Controller
Fan Tray Controller
Caution

Do not remove the fan tray controller unless you have a replacement controller available.

To access a fan tray controller, you must first remove the fan tray. With the fan tray removed, the fan tray controller is installed horizontally above the Switch Fabric Boards (SFBs) at the top of the chassis.

Before you remove a fan tray controller:

Ensure that you have the following parts and tools available to remove a fan tray controller:

  • Electrostatic discharge (ESD) grounding strap

  • An electrostatic bag or an antistatic mat

  • A number 1 Phillips (+) screwdriver to loosen the captive screws

  1. Remove the fan tray (see Removing an MX10016 Fan Tray).
  2. Loosen the two captive screws on each side of the fan tray controller.
  3. Grasp the fan tray controller, and pull it straight out of the slot (see Figure 6).
    Figure 6: Removing an MX10016 Fan Tray Controller
    Removing an MX10016
Fan Tray Controller
  4. Place the fan tray controller in an electrostatic bag or on an antistatic mat.

Installing an MX10016 Fan Tray Controller

Each fan tray of an MX10016 has a fan tray controller (see Figure 7). Each controller is a hot-removable and hot-insertable field-replaceable unit (FRU). You can remove and replace one fan tray controller while the router is running without turning off power to the router or disrupting routing functions.

Figure 7: Fan Tray Controller
Fan Tray Controller
Caution

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

To access a fan tray controller, you must first remove the associated fan tray. With the fan tray removed, the fan tray controller is installed horizontally above the Switch Fabric Boards (SFBs) at the top of the chassis.

Before you replace a fan tray controller:

Ensure that you have the following parts and tools available to install a fan tray controller:

  • Electrostatic discharge (ESD) grounding strap

  • A number 1 Phillips (+) screwdriver to tighten the captive screws.

  • Replacement fan controller

To install a fan tray controller:

  1. Remove the replacement fan tray controller from the electrostatic bag.
  2. Carefully slide the fan tray controller into the fan tray controller slot until it is flush with the mounting holes (see Figure 8).
    Figure 8: Replacing an MX10016 Fan Tray Controller
    Replacing an MX10016
Fan Tray Controller
  3. Using a Phillips screwdriver, tighten the captive screws for the fan tray controller.
  4. Replace the fan tray. See Installing an MX10016 Fan Tray.