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Page 32
CHAPTER THREE
SECTION 3.2
DRIVEN ELEMENT (continued)
ATTACH THE ELEMENT SUPPORT TUBES—DRIVEN
Locate the 1-3/4” x 60-3/4” element support tube (PN 70-7028-01). Slide the first 2” x 3” stress relief
sleeve (PN 10-1601-11) onto the element support tube (EST). Using a tape measure, position the reinforc-
ing 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 attached on the edge, as shown in
figure 3.20
.
Slide the second reinforcing sleeve onto the EST tube, so that it is flush with the EST tube and the slotted
portion of the reinforcing sleeve faces downward as shown in
figure 3.21
. The slotted portions on each of
the two reinforcing 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
