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Pivot Base and Lower Antenna Assembly
1. Locate the heavy duty Extren
®
insulated channel.
There are 14 holes drilled in the insulated channel.
The top of the insulated channel is identified by the two
wide spaced holes located very near the top end.
2. Locate the stainless steel bottom hinge plate, backing plate, four carriage bolts, four 3/8" flat
washers, four 3/8" split lock washers and four 3/8" hex nuts. Assemble the bottom hinge to the
bottom of the heavy duty Extren
®
insulated channel as shown below. Tighten the hardware.
3. Locate the three 4” Cast Saddle Clamps, three 4” x 3/8” x 6.813” long stainless steel U-Bolts,
six Saddle Backing Plates, six 3/8” washers, six 3/8” split lock washers and six 3/8”-16 stainless
steel hex nuts. (Note: The U-Bolts and their hardware may be packaged separately). Loosely
assemble the U-Bolts to the heavy duty Extren
®
insulated channel as shown below. These will
be tightened after the base is mounted and you are ready to insert the 4” OD base element.
