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26
Section 5.1: Staging the EST Extensions
•
From the pole box, identify the upper and lower EST extensions (PN 70
-
2019
-
01 & 70
-
2020
-
01 respec-
tively) and set on a clean and dry surface.
•
From the BigIR Mark IV Hardware/Heat Shrink kit (PN 72
-
0044
-
04) remove the following components:
•
On the lower EST (PN 70
-
2019
-
01):
-
Slide one O
-
ring from the end opposite to the aluminum coupler, and butt it against the coupler to
make a seal on the joint (figure 5.1).
-
Slide one piece of Polyolefin heat shrink tubing directly behind the O
-
ring in preparation for sealing.
-
Now the hose clamp can be slid over the pole, about halfway down.
-
Follow with the final piece of heat shrink tubing, as well as the final O
-
ring
•
On the upper EST (PN 70
-
2020
-
01):
-
Slide one O
-
ring from the end opposite to the aluminum coupler, and butt it against the coupler to
make a seal on the joint.
-
Slide one piece of Polyolefin heat shrink tubing directly behind the O
-
ring in preparation for sealing.
Figure 5.1
PREPARE THE EST EXTENSION ASSEMBLY
QTY
Part Number
Description
Key
3
10
-
1104
-
11
O
-
Ring, 1
-
3/4"
A
1
60
-
6000
-
20
Hose Clamp,
1.16”
-
2”
ID, SS
B
3
10
-
1059
-
11
Polyolefin Heat Shrink
2.05”
x
4”
C
PN 70
-
2019
-
01
PN 70
-
2020
-
01
A
A
A
C
C
C
B
Note: O
-
ring is black in
color, it is only shown in
orange for contrast.
Note: Lower EST does
not have reinforcing ring