Mini-Crawler Crane M A E D A Section 4 – FLY-JIB INSTALLATION AND STOWAGE
1/2019 MC405C-3 4-153
13. Fix the No.1 Fly-jib bracket (15) and main
boom by four attachment bolts (33)
(M12x30L), washers (34) and nuts (35).
Fig. 4-439
NOTICE: Insert attachment bolt from main boom
side.
DANGER!
• Use tightening torque of 93Nm to grip
attachment bolt of Fly-jib. Also, use torque
wrench (E) to grip attachment bolt of Fly-jib.
If attachment bolt comes out, it may cause
the Fly-jib to drop resulting in a serious
hazard.
• Check condition of the bolts before use.
14. Pull lynch-pin (36) out from position pin (20)
which fixing two supporting rod (3), then pull
out position pin (20) (length: 135mm).
Fig. 4-440
NOTICE: The position pin (20) which you pulled
out will be used later to connect supporting rod
(3) with bracket on the head of main boom.
15. Pull lynch-pin (36) out from position pin (21)
which fixing two supporting rods (3), then
pull out position pin (21) (length: 135mm).
Fig. 4-441
NOTICE: The position pin (21) which you pulled
out will be used later to connect support rod (3)
with the No.1 Fly-jib bracket.
16. Move two supporting rods (3) to bracket (2)
on the head of main boom and put position
of the hole together.
Fig. 4-442
NOTICE: Supporting rod (3) is composed of two
rods. Move the rod one by one when you change
the position of supporting rod (3).
17. Insert position pin (20) (length: 135mm) into
bracket (2) on the head of main boom, and
lock position pin (20) firmly by lynch-pin (36).
CAUTION: According to decal on the machine
to insert position pin from the direction
shown in the figure. If you insert position pin
from opposite direction, it makes it difficult to
remove supporting rod because of
interference of lever block and grip of
position pin.
Fig. 4-443
18. Operate lever block (28) to move No.1 Fly-jib
(4), and put the hole position of No.1 Fly-jib
bracket (32) and supporting rod (3) together.
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