Manitowoc Published 07-23-15, Control # 078-03 4-17
31000 LUFFING JIB OPERATOR MANUAL SET-UP AND INSTALLATION
16
Information below from drawing A19443, Sheet 11:
Using an assist crane (A) attached to the main strut insert (G) as shown below, attach the lower half of the main
strut to the #90 boom top (F):
• Align the main strut butt (E) with the #90 boom top (F) and install the hinge pins (C).
• Connect the two support struts (D) on the main strut insert (G) to the support strut lugs (B) on the jib strut butt
(H).
NOTE: Align each support strut (D) so that it forms an angle with the jib strut butt (H) that is as close as possible
to 90°. Use the three holes in each support strut lug (B) to adjust this angle.
Step Action
A
Item Description
A Assist crane.
B Support strut lug.
C Main strut butt hinge pin.
D Support strut.
E Main strut butt.
F #90 boom top.
G Main strut insert.
H Jib strut butt.
I Main strut stop support lower pin.
C
10°
D
E
F
G
H
FIGURE 4-17
F
H
G
E
B
I
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