Manitowoc Published 07-23-15, Control # 078-03 4-79
31000 LUFFING JIB OPERATOR MANUAL SET-UP AND INSTALLATION
Main Strut in Folded Position
Relocate the Strut Cap from the Main Strut to the Jib Strut
Remove the Upper Half of the Main Strut
Step Action
24
Disconnect the strut raising pendant (Figure 4-39) from the assist crane and the strut cap (Figure 4-28).
Step Action
25
Disconnect the pin, collar, pin assembly from the jib backstay straps setting on the main strut stop (Figure 4-32
through Figure 4-36
).
26
Attach an assist crane at four places to the strut cap (Figure 4-27). Attach Drum 2 wire rope to the strut cap
(Figure 4-28
).
27
Remove the bottom strut cap pin that attaches the strut cap to the main strut transition insert (Figure 4-37).
28
Use an assist crane and Drum 2 to raise the strut cap into a vertical position while pivoting around the hook
connector (Figure 4-37
).
29
Use an assist crane to raise the strut cap with attached straps high enough to clear the main strut transition insert,
and move the strut cap towards the jib strut top (Figure 4-30
).
NOTE: The strut raising pendant and Drum 2 wire rope does NOT have to be used during this step.
30
Remove the jib support straps (Figure 4-23) from the strut cap. Then attach the strut cap to the jib strut cap using
the two strut cap pins (Figure 4-29
).
31
Using a pin stored during assembly, secure the link support set to the storage trough on the jib strut top
(Figure 4-23
).
32
With strut configuration similar to Figure 4-22, reeve a sucker line through the strut cap and jib strut top
(Figure 4-14
).
33
Pay in the unattached luffing hoist rope to the boom top.
Step Action
34
Using an assist crane attached as shown in Figure 4-21, pivot the support struts into their storage position.
35
Remove the connector pins and lift off the upper half of the main strut (Figure 4-21). Store the connector pins in the
holes they were removed from on the main strut insert.
36
Disconnect the main strut transition insert from the main strut insert (Figure 4-20).
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