Removing The T4000 Dc Power Supplies; Figure 44: Removing A Six-Input Dc Power Supply Before Installing The Router - Juniper T4000 Hardware Manual

Removing the T4000 DC Power Supplies

Copyright © 2013, Juniper Networks, Inc.
The power supplies are located at the rear of the chassis below the SIBs. Each six-input
DC power supply weighs approximately 39.7 lb (18.0 kg).
To remove the power supplies, starting with the upper power supply:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the lower corners of the power supply faceplate
2.
completely.
Twist the ejector handles on the upper corners of the faceplate counterclockwise to
3.
unseat the power supply.
Grasp the handle on the power supply faceplate, and pull firmly to start removing the
4.
power supply. Slide it halfway out of the chassis (see
Place one hand underneath the power supply to support it, and slide it completely
5.
out of the chassis.
CAUTION: Be prepared to support the full weight of the power supply as
you remove it from the router.
Repeat the procedure for the other power supply.
6.
Figure 44: Removing a Six-Input DC Power Supply Before Installing the
Router
Chapter 10: Installing the T4000 Router Without a Mechanical Lift
Figure 44 on page 89).
89