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Page 33
CHAPTER THREE
SECTION 3.3
DIRECTOR 1 EHU (continued)
SECURE THE DIRECTOR 1 EHU TO THE MOUNTING PLATE (continued)
Place the EHU as shown in
figure 3.32
. Be certain the four 1/4” aluminum spacers (PN 10-1613-11) are
positioned over the PEM nuts, between the element mounting plate and the EHU lid as shown in
figure
3.33
. The aluminum spacers protect the PEM nuts and elevate the EHU above the bolt heads that are
holding the mounting plate to the boom.
When the EHU is placed on top of the spacers, the plastic EST tube that protrudes out of the EHU
should be roughly aligned with the center of the EST extension tube as shown in
figure 3.34
.
Insert the #10 x 3/4” machine screws (the ones with the locking strip as shown in
figure 3.35,
PN 60-
0101) with the threads pointing downward. Be certain that there is a #10 flat washer between the top
flange of the EHU and the head of the machine screw. Align with the PEM nuts and tighten each
screw. Do not over-tighten or you could potentially crack the mounting flange on the EHU.
Key QTY
Part #
Description
A
4
60-0101
#10 x 3/4” Machine screw with locking strip on
threads (see PIC XX)
B
4
60-0018
#10 Flat washer
C
4
10-1613-11 1/4” Aluminum spacer
A
A
A
A
B
B
B
B
C
C
C
C
PEM NUTS ARE
ALREADY INSTALLED
ON THE MOUNTNG PLATE
FIG. 3.32
FIG. 3.35
FIG. 3.34
FIG. 3,33