Andrew operation and maintenance Specifications download pdf (Page 44)

Chapter 2 - Installation

42S315F 2-32

2.4.8.3 Grouting Procedures

Perform the following procedures to grout the four base plates to the

foundation:

1. Wash work surface with water. Keep surface saturated with water for

at least 24 hours prior to grouting.

NOTE

Grouting must be completed within 10 minutes after

mixing.

2. Pour grout into a five gallon bucket or equivalent mixing container

and slowly add water. Stir the mix and add grout or water as required

to obtain a good paste.

NOTE

Be sure to mix enough grout to complete each pad at one

time. Once the grout begins to set, new grout will not bond

to the old grout.

3. Starting on one side of each base plate, use a small strip of wood to

work the grout between base plate and foundation. It is important

that the grout be worked from one side to the other to prevent air

from being trapped under each plate. Once the area under the plate is

full of grout, smooth the edges around each plate for best appearance.

4. Immediately after the grout is installed, cover all exposed grout with

clean wet rags (do not use burlap). Keep the rags moist for at least

two hours.

5. After the grout has cured for a minimum of six hours, turn the

leveling screws counterclockwise two to three turns to raise the screw

off the bearing surface. Tighten all anchor bolt nuts as follows:

• Model 8009A mount (1.0-inch diameter anchor bolts) to 240 to

275 ft-lb (325 to 372 Nm).

• Model 8009AE mount (1.25-inch diameter anchor bolts) to 360

to 440 ft-lb (488 to 596 Nm).

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Andrew operation and maintenance Specifications Page 44