Installation Manual

1027145–0001 Revision D 6–4 Installing indoor hub equipment Hub installation
6. Clean out the holes and position the isolation pad and rack
mounting bracket over the holes as shown in figure 6-2.
7. Remove the nut and washers from each safety bolt, if used,
and place the appropriate washers on the shaft, as shown in
figure 6-2. Then drop a safety bolt into the hole.
CAUTION
When installing the isolation shoulder
washer, make sure the shoulder seats
completely into the metal floor mounting
bracket. Isolation may be compromised if
this washer is damaged or improperly
installed.
8. Use a torque wrench to tighten each safety bolt to
15 foot–pounds (20.3 Newton–meters) of torque.
The slotted sleeve on the safety bolt will be forced against
the walls of the hole, anchoring the safety bolt securely.
Note: If you do not have a torque wrench, use a ratchet
wrench to tighten the safety bolt until the conical washer
(shown in figure 6-2) flattens completely.
9. Once the anchor is set, loosen the nut and insert a flat–blade
screwdriver into the threaded rod slot.
10. Hold the nut with a 1–1/16–inch open–end wrench while
turning the screwdriver clockwise until the top of the rod is
even with the top of the nut.
11. While holding the screwdriver in this position, tighten the
nut.
The threaded rod and the top of the nut will be flush.
• Follow steps 12 through 15 if the floor is made of wood:
12. Using a 5/16-inch drill bit, drill a hole at least 2 inches (5
centimeters) deep in each of the locations you marked in
step 4.
13. Clean out the holes and position the isolation pad and rack
mounting bracket over the holes, as shown in figure 6-3.