User's Manual

Cabinet Mounting

– continued

DRAFT

4812ET RF and Power Cabinet Hardware Installation Manual

Apr 2001

V04.03

Table 4-3: Rooftop (Elevated Substructure) Mounting

Step Action

1 Fasten mounting brackets (see Figure 4-2) onto cabinet with

M12 bolts and washers (supplied in installation hardware).

Do NOT torque the bolts yet.

! CAUTION

Do NOT use the cabinet doors as a hand hold to move the

cabinet around, this could damage the door hinges

2 Place the cabinet on top of the substructure, so that the mounting

holes are aligned with the holes in the cabinet mounting

brackets.

3 Install the mounting bolts into the four (4) mounting locations

in the mounting brackets attached to the cabinet bast. Tighten

the bolts to the proper torque recommended by the

manufacturer of the bolts. If using the M12 bolts supplied

with the installation hardware, tighten the bolts to 80 N–m (60

ft–lbs.) torque.

4 Tighten the M12 bolts attaching the mounting brackets to the

cabinet. Torque to 135 N–m (100 ft–lbs) within a 19 mm

(3/4”) torque wrench

5 Remove the four (4) eye–bolts (see Figure 4-2) on the top of

the cabinet, replace them with the bolts and washers supplied

with the installation hardware using a 24 mm (15/16”) hex

driver. Torque to 80 N–m (60 ft–lbs).

6 Install the wiring as described in Chapter 5 of this manual.

The isolation washers supplied in the hardware installation

kit are provided to give the installer the option of

electrically isolating the cabinet should the situation

require it. The use of the washers is not a requirement.

The grounding of each site is unique, and the isolation of

the cabinet is a site specific decision.

NOTE

New Concrete Pad Mounting

Mounting the cabinet on a new concrete pad which has been designed to

install the cabinet offers some unique opportunities, as the cables, wires,

and conduits can all be routed into the cabinet from the bottom through

the concrete pad.

After the pad has been poured following the procedure in Chapter 2, the

concrete has cured adequately and the mounting holes drilled as detailed

in Chapter 2, follow the procedures in Table 4-4 to install each cabinet.

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