SET-UP AND INSTALLATION 31000 LUFFING JIB OPERATOR MANUAL
4-54 Published 07-23-15, Control # 078-03
57
Information below from drawing A19443, Sheet 25:
• Reeve the Drum 2 main load hoist line (A) over the main strut (B) upper sheave and the jib strut (C) upper
sheave.
• Reeve the Drum 1 main load hoist line (D) or the Drum 3 whip/auxiliary load line (E) over the top of the main strut
(B) lower sheave and under the bottom of the jib strut (C) lower sheave.
• Then reeve the Drum 1 (or Drum 3) line to the jib top — over the top of the lower sheave on the wire rope guide
Step Action
FIGURE 4-57
A
Item Description
A Drum 2 main load hoist line.
B Main strut.
C Jib strut.
B
C
D (or E)
E (or D)
Item Description
D Drum 1 main load hoist line.
E Drum 3 whip/auxiliary load line.
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