Cisco Catalyst IR8140 Heavy Duty Series Hardware Installation Manual page 48

Install the Mounting Plate Poles Up to 4.5 Inches in Diameter
Step 5
To place the bracket hardware on each carriage bolt (see the following figure):
a) Place the washer (2) and then the split lock washer (3) on the back of each carriage bolt (5).
b) Thread the hex nut (4) on each carriage bolt. Ensure that the split-lock washer is between the washer and the nut.
Figure 21: Carriage Bolt Hardware Assembly Details
Step 6
Hand tighten the hex nuts (do not over tighten).
Step 7 Repeat Step 3 through Step 6, installing the two bottom carriage bolts and the second clamp bracket at the bottom of the
mounting plate.
Step 8
Position the mounting plate and clamp brackets on the pole as needed before further tightening the carriage bolts.
Step 9 Use a socket wrench to evenly tighten all four carriage bolts to finish installing the mounting plate on the pole.
Cisco Catalyst IR8140 Heavy Duty Series Router Hardware Installation Guide
32
Mounting the Router