SET-UP AND INSTALLATION 31000 LUFFING JIB OPERATOR MANUAL
4-18 Published 07-23-15, Control # 078-03
17
Information below from drawing A19443, Sheet 11:
Use an assist crane (A) to attach the main strut stops to the #90 boom top (H):
• Attach an assist crane (A) to one of the main strut stops (B).
• Remove the main strut stop support lower pin (see I in Figure 4-17
). Then move the main strut stop support to its
working position.
• Move the main strut stop locking pin from the shipping position (C) to the working position (D).
• Extend the main strut support stop (B).
• Place Drum 5 wire rope (F) above the main strut support stop (B).
• Attach the main strut support stop (B) to the #90 boom top (E).
• Adjust the length of the support strut (G) to be in the cradle position on the #90 boom top (H).
Step Action
A
Item Description
A Assist crane.
B Main strut support stop.
C Locking pin (shipping
position).
D Locking pin (working position).
E Main strut hinge pin to #90
boom top.
F Drum 5 wire rope.
G Support strut.
H #90 boom top.
FIGURE 4-18
B
D
E
F
G
H
F
C
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