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H-223 – Xylem H-223 User Manual

Page 6

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1-2 Assembly & Installation

H-223

Element Cam-Lock

Step 1

Insert Cam Element

Step 2

Insert Notched Element

Step 3

Rotate Cam Element

into locked position

2.1 Install the Director and Reflector Elements

The Yagi elements are installed in pairs using a cam-lock mechanism to rigidly lock each element in

place. Each pair consists of one element with an eccentric cam and the second with a small round notch

in the center. Follow Steps 1 thru 3 to install the three 13-1/4" long director pairs and the 14-3/4" long

reflector pair.

Step 1: Insert the element with the cam into the boom until the cam

is in the center of the boom. Rotate the cam until the side passage is unobstructed. Do not attempt to

insert the notched element first, the 2

nd

element will not slide past the notch.

Step 2: While holding the first element in place, insert the second element (with the round notch) into the

boom and rotate it until the notch is aligned with the cam. Slide the notched element into the boom until

the notch is approximately centered inside the boom. By hand, rotate the cam element until the cam rubs

against the notched element. Slide the notched element back and forth until you feel the cam drop into

the notch. Continue to rotate the cam element by hand until it turns approximately 30 degrees. If it

won’t turn 30 degrees it is not properly aligned with the notch in the other element.