Maeda MC405C-3 - Removal of Fly-Jib Assembly

Section 4 – FLY-JIB INSTALLATION AND STOWAGE Mini-Crawler Crane M A E D A
4-162 1/2019 MC405C-3
Removal of Fly-Jib Assembly
NOTICE: This section is an explanation of the
method to remove Fly-jib from machine. Use
crane to remove Fly-jib.
WARNING!
• Always stop the engine regularly during
changing hook block. If you work without
stopping engine, machine may suddenly
move resulting in a serious hazard.
• The hoisting attachments such as wire rope
and shackle used in hoisting shall be
sufficiently strong for the weight of Fly-jib.
CAUTION: The crane operator who operates a
Fly-jib may have to acquire a qualification
provided by local law or regulation. All
operators must be trained and have reached a
good standard.
1. Pull lynch-pin (29) out from position pin (18)
inserted at storage bar (16), then pull out
position pin (18) (length: 55mm).
Fig. 4-485
2. Move No.1 Fly-jib (4) and storage bar (16) to
the direction of head of the main boom.
Fig. 4-486
NOTICE: Move No.1 Fly-jib (4) and storage bar
(16) until stopper (30) of the storage bar (16) has
hit bar guide A (23).
3. Pull lynch-pin (29) out from position pin (19)
inserted at storage bar (16), then pull out
position pin (19) (length: 95mm).
Fig. 4-487
4. Lift up No.1 Fly-jib (4) tip to take it out from
stow stay, then slew it around the position
pin (17) (length: 150mm) on the right side of
the head of main boom.
Fig. 4-488
5. Hang hoisting wire rope to No.1 Fly-jib (4),
and hoist the jib interim.
Fig. 4-489
6. Pull lynch-pin (29) out from position pin (17)
inserted at storage bar (16), then pull out
position pin (17) (length: 150mm).
7. Hoist No.1 Fly-jib (4) and remove it.
8. Take off four attachment bolts (61) and four
washers (62) from bar guide D (26), then
remove bar guide D (26).