SET-UP AND INSTALLATION 31000 LUFFING JIB OPERATOR MANUAL
4-34 Published 07-23-15, Control # 078-03
35
Information below from drawing A19443, Sheet 18:
For a crane with a boom length of 70 m (229.7 ft), 75 m (246.1 ft), 80 m (262.5 ft), or 85 m (278.9 ft), connect the
strut cap (B) to the last jib backstay strap (F) on the jib backstay spreader (D) as shown below:
• Connect the lowest strut cap strap (G) to the jib backstay spreader (D) using pin, collar, pin assembly. Before
trying to connect, align the holes first by setting the backstay link (J) on the strut tray (I).
• Attach the strut cap (B) to the main strut transition insert (H) as shown in Figure 4-37
.
Step Action
FIGURE 4-35
70 m (229.7 ft), 75 m (246.1 ft), 80 m (262.5 ft), or 85 m (278.9 ft)
boom length configuration shown.
Item Description
A Assist crane.
B Strut cap.
C Drum 1 or Drum 2 wire rope.
D Jib backstay spreader.
E Drum 5 wire rope.
F Last jib backstay strap.
G Strut cap strap.
H Main strut transition insert.
I Strut tray.
J Backstay link.
K Drum 6 winch wire rope.
A
B
C
D
E
E
F
G
H
J
G
I
K
H
B
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