Figure 187: Connecting A Power Cable To A Four-Input 240-A Dc Power - Juniper T640 Hardware Manual

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Secure the cable lugs to the terminal studs, first with a washer, then with a nut (see

Figure 187 on page

371). Use a 7/16-in. (11 mm) nut driver to tighten the nut. Apply

between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to each nut.

You must use an appropriate torque-controlled tool to tighten

the nuts. Applying excessive torque damages the terminal studs and the

power supply. The absolute maximum torque that may be applied to this

nut is 45 lb-in. (5.0 Nm).

Figure 187: Connecting a Power Cable to a Four-Input 240-A DC Power

Loosen the captive screws on the cable restraint on the right edge of the power supply

Route the DC power cables through the cable restraint.

Tighten the cable restraint captive screws to hold the power cables in place.

Verify that the power cabling is correct, that the power cables do not touch or block

access to other hardware components, and that they do not drape where people

could trip on them.

Chapter 29: Replacing Power System Components

Terminal studs

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