SET-UP AND INSTALLATION 31000 LUFFING JIB OPERATOR MANUAL
4-40 Published 07-23-15, Control # 078-03
Raise the Main Strut
Step Action
41
Information below from drawing A19443, Sheet 21:
Use the assist crane (A) to raise the main strut (B) while paying out Drum 5 wire rope (C):
• When clearance permits, stop raising the main strut (B) and stow the support struts (E, F, G, H).
• Continue to pay out Drum 5 wire rope (C) while using the assist crane (A) to slowly raise the main strut (B) until
the strut stop telescoping tube approaches the contact position (D).
FIGURE 4-41
Item Description
A Assist crane.
B Main strut.
C Drum 5 wire rope.
D Strut stop contact position.
E Main strut support — upper stowage (for boom
lengths less than 70m).
F Main strut support — upper stowage (for boom
lengths 70m and greater).
G Main strut support — lower stowage.
H Main strut support stop support stowage,
A
B
A
B
C
D
Approximately
50.07 m
(164.3 ft)
Approximately
130,000
pounds of force
C
E
F
G
H
To Next Page
Loading...
Need help?
General
