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Page 39
Install the element return mounting plate (PN 10-1608-01). Use four of the 1-3/4” aluminum saddles,
5/16” x 3-1/2” hex head bolts and 5/16” Nylock nuts as shown in
figure 3.60
. Tighten the nuts, but
leave loose enough to adjust for the center-to-center measurement. Again using four of the 1-3/4 alu-
minum saddles, 5/16” x 3-1/2” hex head bolts, and Nylock nuts, loosely install the return tube saddles
as shown in
figure 3.61
.
Using four of the 1-3/4 aluminum saddles, 5/16” x 3-1/2” hex head bolts, and Nylock nuts, loosely install the
return tube saddles as shown in
figure 3.61
.
Insert the element return tube (PN 10-1015-11) as shown in
figure 3.62
. Be sure that the return tube is
protruding out approximately 2.5 inches away from the aluminum saddle edge on each side, as shown in
fig-
ure 3.63
. Tighten the saddles to a maximum of 7 ft lb (9.5Nm).
This is very important.
The aluminum
saddles can crush the fiberglass tubes if the saddles are too tight.
Measure 30 inches from the center-point of the reflector EHU to the center-point of the return tube as shown
in figure 3.64. The center-point of the return tube should also be approximately 5 inches away from the
right edge of the boom as shown in
figure 3.65
. Remember, the center-to-center measurements always get
the priority!
Level the return bracket assembly as shown in
figure 3.66
and tighten the saddle bolts firmly. Do not forget
to use anti-seize on all stainless steel fasteners, and also remember to install a set screw into each saddle
pair (one set screw per saddle pair).
CHAPTER THREE
SECTION 3.6
MOUNTING THE EHU’S ON THE BOOM (continued)
RETURN TUBE MOUNTING—REFLECTOR EHU
FIG. 3.61
FIG. 3.60
FIG. 3.62
FIG. 3.66
FIG. 3.64
FIG. 3.65
FIG. 3.63
