Juniper ACX1000 Hardware Manual page 111

To install heat-shrink tubing:
a. Slide the tubing over the portion of the cable where it is attached to the lug barrel. Ensure that
tubing covers the end of the wire and the barrel of the lug attached to it.
b. Shrink the tubing with a heat gun. Ensure that you heat all sides of the tubing evenly so that it
shrinks around the cable tightly.
Figure 22 on page 103
NOTE: Do not overheat the tubing.
Figure 22: How to Install Heat-Shrink Tubing
5. Remove the screws and flat washers from the terminals.
6. Secure each power cable lug to the terminal with the flat washers and screw (see
105). Apply between 8 lb-in. (0.9 Nm) and 9 lb-in. (1.02 Nm) of torque to each screw. Do not
overtighten the screw. (Use a number 2 Phillips screwdriver.)
a. Secure the positive DC source power cable lug to the return (+) terminal.
b. Secure the negative DC source power cable lug to the input (–) terminal.
shows the steps to install heat-shrink tubing.
Figure 23 on page
103