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Page 21
The DB36 utilizes a boom reinforcing sleeve, located at the junction point where the 2-1/4” boom sec-
tions mate with the 2-1/2” boom section. This action effectively doubles the wall thickness at this criti-
cal location.
Locate the 2” x 10” boom reinforcing sleeve (PN 10-1203-21) and apply Noalox or other lubricant to
each end of the sleeve so that it will slide inside the 2-1/4” boom without seizing. Slide the boom rein-
forcing sleeve into the 2-1/4” portion of boom as shown in
figure 1.05
. Align so that the holes in the
boom reinforcing sleeve match with the holes in the 2.25” portion of the boom as shown in
figure 1.06
.
Apply Noalox to the outside of the 2-1/4” boom piece and slide into the 2-1/2” boom piece as shown in
figure 1.07
. Insert the 1/4” x 3-1/2” hex head bolts (PN 60-0100) bolts through the 3 pieces (2-1/2”
boom, boom reinforcing sleeve & 2-1/4” boom) along with the 1/4” washers (60-0041). Thread the
1/4” Nylock nuts (PN 60-0030) onto the bolts and tighten firmly as shown in
figure 1.08
. Repeat for
the other side of the 2-1/2” boom.
Figure 1.04
shows this procedure in a step-by-step sequence.
Key
Part #
Description
A
10-1202-21
2-1/4” x 48” Boom section
B
10-1203-21
2” x 10” Boom sleeve
C
10-1203-31
2-1/2” x 72” Boom section
D
60-0100
1/4” x 3-1/2” Hex head bolt
E
60-0041
1/4” Flat washer
F
60-0030
1/4” Nylock nut
A
B
A
B
A
B
C
F
D
D
E
E
F
E
E
FIG. 1.05
FIG. 1.06
FIG. 1.08
FIG. 1.07
FIG. 1.04
CHAPTER ONE
SECTION 1.0
BOOM ASSEMBLY (continued)
BOOM REINFORCING SLEEVE
