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Page 31
CHAPTER THREE
SECTION 3.2
DIRECTOR 1 EHU (continued)
ATTACH THE ELEMENT SUPPORT TUBES—DIRECTOR 1
Locate the 1-3/4” x 60-3/4” element support tube (PN 70-7029-01). Note that there are two different
lengths of element support tube (EST) for the Director 1 element. The shorter EST’s (60-3/4”) are used for
the EHU side, and the longer ones (66-3/8”) are used for the return tube side. Slide a 2” x 3” reinforcing
sleeve (PN 10-1601-11) onto the EST. Using a tape measure, position the reinforcing sleeve so that the top
edge of the sleeve is 5.625” from the edge of the EST that does NOT have the reinforcing ring already at-
tached on the edge, as shown in
figure 3.20
.
Slide the second reinforcing sleeve onto the EST, so that it is flush with the EST and the slotted portion of
the reinforcing sleeve faces downward as shown in
figure 3.21
. The slotted portions on each of the two re-
inforcing rings should be aligned so that they are in the same downward position. Using a tape measure,
mark 1/2” from the flush edge of the EST tube as shown in
figure 3.22
. Repeat for the EST for the other
side of the EHU.
Figure 3.23
shows the prepared EST.
Insert the end of the EST that has the reinforcing sleeves on it through the 2” saddles located on the mount-
ing plate. Position the EST so that the mark you made 1/2” from the edge of the EST is now lined up with
the edge of the forward saddle, and the other reinforcing sleeve is centered on the rear saddle as shown in
figure 3.24
. Tighten the saddles to no more than 7 ft lb. Be sure the slotted portion of reinforcing sleeves
are pointing downward.
Position the EHU so that the center-point of the element is 162.625 inches from the left edge of the boom as
shown in
figure 3.25
. Place a level in-between the two ends of the EST’s as shown in
figure 3.26
and when
level, tighten the saddles firmly.
Figure 3.27
shows the prepared EST’s ready for the EHU to be mounted.
CENTERED
ON SADDLE
FLUSH
w/ END
FIG. 3.21
FIG. 3.20
FIG. 3.22
FIG. 3.23
FIG. 3.24
FIG. 3.25
FIG. 3.26
FIG. 3.27