Andrew 960, 123 manual Appendix A, 96cm Antenna Survival Windloads at 125 MPH Velocity

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ASSEMBLY AND INSTALLATION

ASSEMBLY AND INSTALLATION

INSTALLING AZ/EL CAP MOUNT ONTO POLE

TOP BRACKET

The AZ/EL Cap is factory preassembled, therefore, no assembly is required. Before installing AZ/EL Cap onto ground pole, a concrete foundation should be in place and cured.

MODEL 611612001 (Fine Tune Option)

Loosen (8) Carriage Bolts and nuts securing the “U” Bracket to the Top Bracket and “U” Bracket to (2) half clamps and swivel nut, hex nut (for optional fine tune fea- ture). (Ref. Fig. 1.0). Install AZ/EL Cap Mount onto Ground Pole. Equally tighten (4) Clamp Bolts so that Cap is held stationary on Ground Pole, but can be

HEX NUT

SWIVEL NUT

"U" BRACKET

HEX NUT,

CARRIAGE BOLT (8)

HALP CLAMP (2)

CLAMP BOLTS

(CARRIAGE BOLT &

HEX NUT) (4)

APPENDIX A

96cm Antenna Survival Windloads at 125 MPH Velocity

 

 

 

 

 

IS

 

 

 

 

X

 

 

 

 

MA

 

 

 

 

A

 

 

 

E

 

 

 

B

 

 

 

 

15.4o

 

 

MECHANICAL AXIS

 

OFFSET

 

 

FH

(NORMAL TO ANTENNA FACE)

swiveled with slight pressure (approximately 2 ft-lbs (2.7 N-m). Retighten and torque (4) Carriage Bolts and nuts securing “U” bracket to half clamps to 18 ft-lbs (24.4 N- m). Leave loose (4) Carriage Bolts and Swivel Nut, Hex Nuts, for fine tune option.

MODEL 611612002 (w/o Fine Tune Option)

Make sure (4) carriage bolts and nuts securing the

(2)Half Clamps to top bracket are loose. (Ref. Fig. 1.1) Place AZ/EL Cap onto Ground Pole and tighten (4) Half Clamp Bolts to approximately 2 ft-lbs (2.7 N-m) (just enough to allow AZ Clamp to turn on pole with slight pressure). Tighten and torque (4) Carriage Bolts and Nuts in Top Bracket to 18 ft-lbs (24.4 N-m) (loosened above).

ASSEMBLING REFLECTOR ONTO AZ/EL CAP MOUNT

96cm System

FIG. 1.0 - Model 611612001 AZ/EL w/Fine Tune Option

CLAMP BRACKET

HEX NUT,

CARRIAGE BOLT (4)

HALF CLAMP (2)

CLAMP BOLTS

(CARRIAGE BOLT &

HEX NUT (4)

FIG. 1.1 - Model 611612002 AZ/EL w/o Fine Tune Option

41.5" HEIGHT

(1054 mm )

MT

FH =

Horizontal Force

 

 

FV =

Vertical Force

 

MT = Torsional Moment

 

MO = Overturning Moment

FV

MO

 

Install two M8 x 56 (56 mm) Plow Bolts into holes in Reflector Face and two (91 mm) into bottom holes. Lift Reflector and insert exposed portion of bolt into holes into Antenna Bracket Flange. Install 4 Lock Washers and Hex Nuts on bolts. (Ref. Fig. 1.2)

1.2m System

Install four M8 x 91 (91 mm) Plow Bolts into top holes in Reflector Face. Lift Reflector and insert exposed portion of bolt to holes in Antenna Bracket Flange. Install 4 Lock Washers and Hex Nuts on bolts. (Ref. Fig. 1.2)

Assemble Extension Plate to AZ/EL Housing using two M6 x 22mm Round Head Square Neck Bolts, Lock Washers, and Hex Nuts. (Ref. Fig. 1.3) Tighten and torque to 6 ft-lbs (8 N-m).

Tighten and torque Reflector bolts to 11 ft-lbs (15 N-m).

(2 REQ)APPENDIX A

PLOW BOLT

M8 x 1.25 x 56

(.96m ONLY)

SIDE BOLT

HOLE

(2 REQ) .96m

PLOW BOLT

M8 x 1.25 x 91 (QTY. 4, 1.2m)

BOTTOM

BOLT

HOLE

MOUNT ASSEMBLY

LOCK WASHER

(4 REQ)

96cm Antenna Survival Windloads at 125 MPH Velocity HEX NUT (4 REQ)

FIG. 1.0 - Model 611612001 AZ/EL w/Fine Tune Option CLAMP

BOLTS

GROUND

POLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELEVATION DEGREES

 

 

FORCE (POUNDS)

 

 

MOMENTS (FT-LBS/N-m)

 

 

MECHANICAL

BEAM

 

 

FH

 

FV

 

 

MT

 

MO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

15

 

 

747

 

-20

 

 

150

 

2584

 

 

 

10

 

25

 

 

707

 

-150

 

 

147

 

2445

 

 

 

20

 

35

 

 

687

 

-289

 

 

139

 

2376

 

 

 

30

 

45

 

 

622

 

-413

 

 

126

 

2151

 

 

 

40

 

55

 

 

548

 

-498

 

 

107

 

1896

 

 

 

50

 

65

 

 

478

 

-548

 

 

90

 

1653

 

 

 

60

 

75

 

 

398

 

-573

 

 

70

 

1377

 

 

 

70

 

85

 

 

299

 

-443

 

 

54

 

1034

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mo Based on 41.5" (1054 mm) from Mounting Surface of Center Line of Antenna

IMPORTANT: Note orientation of bolt holes in Reflector Flange. Holes should be located on each side and bot- tom of the Reflector as shown in Figure 1.2.

FIG. 1.2 - Assembling Reflector to AZ/EL Mount and Ground Pole (.96cm Shown)

Values shown represent maximum forces for any wind direction and include 1.5 Fs. Height and exposure factors from uniform building code are NOT included.

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Andrew 960, 123 manual Appendix A, 96cm Antenna Survival Windloads at 125 MPH Velocity, Assembly And Installation