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Page 22
The DB18E uses two
2”
x
72”
aluminum boom sections and two
1
-
3/4”
x
72”
aluminum boom sections.
The
2”
boom sections are held together using a boom center
-
splice (PN 10
-
1203
-
01). The
1
-
3/4”
boom sections telescope inside the
2”
sections and are secured using
1/4”
bolts.
It is important to note that while the
2”
boom sections look identical, there is a subtle difference. One
of the boom pieces (PN 10
-
1202
-
11) has two
1/4”
drilled holes on each end of the tube. The other
2”
boom piece (PN 10
-
1202
-
52) has two
1/4”
drilled holes on the end that receives the
1
-
3/4”
pipe, and a
set of
5/16”
drilled holes on the other end—which accommodates the EZ
-
Eye assembly. Because of
this, the center
-
splice that is used to join the two pieces of
2”
boom section also has a set of two
drilled
5/16”
holes on one side, and a set of two
1/4”
drilled holes on the other side as shown in
figure
1.10
. Be sure to match the correct hole sizes on the center
-
splice to the proper sections of
2”
boom.
CHAPTER ONE
SECTION 1.1
BOOM ASSEMBLY (continued)
CONNECTING THE EZ
-
EYEBOLT TO THE BOOM
Key
QTY
Part #
Description
A
1
60
-
0037
5/16”
x4
”
Eyebolt
B
1
60
-
0103
5/16”
x
3”
Hex head bolt
C
3
60
-
0033
5/16”
Flat washer
D
2
60
-
0046
5/16”
Nylock nut
E
1
10
-
1203
-
01
1
-
3/4”
x
12”
Boom center
-
splice
F
2
60
-
0029
1/4”
x
3”
Hex head bolt
H
10
60
-
0041
1/4”
Flat washer
J
2
60
-
0030
1/4”
Nylock nut
A
B
C
D
F
F
C
D
E
H
H
H
H
H
J
H
H
H
H
H
J
FIG. 1.10
C