router. The following procedures describe how to remove components from the chassis,
first from the rear and then from the front:
1.
Removing the Power Supplies Before Installing the MX240 Router with a Lift on page 173
2.
Removing the Fan Tray Before Installing the MX240 Router with a Lift on page 174
3.
Removing the SCBs Before Installing the MX240 Router with a Lift on page 174
4.
Removing the DPCs Before Installing the MX240 Router with a Lift on page 175
5.
Removing the FPC Before Installing the MX240 Router with a Lift on page 176
Removing the Power Supplies Before Installing the MX240 Router with a Lift
Remove the leftmost power supply first and then work your way to the right. To remove
the AC or DC power supplies (see Figure 51 on page 173):
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect
the strap to an approved site ESD grounding point. See the instructions for your site.
2. For an AC-powered router, switch the AC input switch on the power supply to the
off (O) position. For a DC-powered router, switch the DC circuit breaker on the power
supply to the off (O) position.
We recommend this even though the power supplies are not connected to power
sources.
3. Pull the power supply straight out of the chassis.
Figure 51: Removing a Power Supply Before Installing the Router
173Copyright © 2017, Juniper Networks, Inc.
Chapter 16: Installing the MX240 Router
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