SET-UP AND INSTALLATION 31000 LUFFING JIB OPERATOR MANUAL
4-80 Published 07-23-15, Control # 078-03
Remove the Lower Half of the Main Strut
Remove the Jib Strut
Disassemble the Luffing Jib and Remove it from the Boom
Remove the Luffing Jib Drum 5 Assembly and Relocate the Wire Rope Guide
Step Action
37
Attach an assist crane to the main strut stop. Then remove the hinge pin holding the main strut stop to the #90
boom top (Figure 4-18
).
38
Retract the main strut support stop and move the locking pin to its shipping position (Figure 4-18).
39
Adjust the length of the main strut support stop (Figure 4-86) and fold it into the storage position on the main strut
(Figure 4-17
).
40
Attach an assist crane to the lower half of the main strut and move the support strut to its storage position on the
main strut insert (Figure 4-17
).
41
Remove the main strut butt hinge pins (Figure 4-17). Then lift off the lower half of the main strut. Stow the main strut
butt hinge pins in the main strut butt.
42
Disassemble the lower half of the main strut (Figure 4-16).
Step Action
43
Remove the sling connecting the strut top to the counterweight boxes (Figure 4-13).
44
Using an assist crane attached to the jib strut as shown in Figure 4-13, remove the hinge pins and links
(Figure 4-12
).
45
Place jib strut on blocking and disassemble (Figure 4-11).
Step Action
The boom shall be removed from the crane in order to access Drum 5. See drawing A18701 for disassembly.
46
See Section 4 of the 31000 Operator Manual.
Step Action
The boom shall be removed from the crane in order to access Drum 5. See drawing A18701 for disassembly.
47
See Section 4 of the 31000 Operator Manual.