SETUP AND INSTALLATION MLC165-1 OPERATOR MANUAL
4-116
Published 08-06-19, Control # 237-09_v2
Jib #134 Disassembly
Lower Boom and Jib
1. Lower the boom until the jib point is approximately 12 in
(305 mm) from contacting the ground.
See Figure 4-87 on page 4-113
for the following procedure.
2. Disengage the jib stop pins (6, View A and B) by hauling
in the cable on the winch (12, View D). Turn the handle
until the cable is tight and engage the winch pawl.
Visually check that pins are disengaged.
3. Remove the safety pins (14, View C) from storage and
install them in the jib stop pins (6, View B).
4. Lower the boom onto blocking.
5. Remove the hook-and-weight ball or the load block and
the wire rope from jib point.
6. Remove the block-up limit parts from the jib point and
store them.
7. Disconnect and store the electric cables between the
boom and the jib.
8. If equipped, disconnect and remove the wind speed and
position light components so they are not damaged
during shipping.
Store Jib Stop
See Figure 4-87 on page 4-113 for the following procedure.
1. Store the control cable:
a. Disconnect the cable extension (8, View A and E)
from shackles (7 and 10). Store the shackles with
the cable extension.
b. Disconnect the cable extension (8, View A) from the
sheave (9) in the boom top.
c. Secure the cable extension in the jib butt for
storage.
d. Coil the excess control cable (11, View E) onto the
winch (12, View D).
2. Readjust the length of the jib stop by pinning it in the 5°
offset position (View A).
3. Remove the shipping pins (13, View C) from storage.
4. Raise the jib stop assembly (1, Figure 4-86 on page 4-
112) and pin it to the strut with storage pins (13).
Lower Jib Strut
See Figure 4-84 on page 4-111 for the following procedure.
1. Using appropriate slings, attach the hook from the crane
being used for disassembly to the front side of the
sheave in the jib strut (1). Avoid lifting jib butt/boom top
during this step.
2. If required, raise the jib point (12) with another crane or a
fork-lift truck to gain enough slack to allow unpinning the
backstay pendants.
3. Disconnect the backstay pendants (2) from the links
(10).
4. Lay the backstay pendants on the ground alongside the
boom.
5. Lower the jib point (12) to the ground and disconnect the
assist crane.
6. Lower the jib strut onto the jib butt and disconnect the
crane from the jib strut.
7. Remove and store links (10).
Remove Backstay Pendants
See Figure 4-83 on page 4-110
1. Disconnect the backstay pendants (2) from the backstay
links (4). The spreader (3) can remain pinned to the links
for shipping.
2. Coil the backstay pendants for shipping.
DANGER
Collapsing Jib Hazard!
To prevent death or serious injury, do not stand on, inside,
or under the jib during disassembly. Always stand on the
outside of the jib when removing connecting pins.
Support the jib properly before removing the pins. Block
the sections at the connection points.
WARNING
Crushing Injury!
The jib stop pins are spring engaged. Do not disconnect
the control cables until the safety pins are installed.
CAUTION
Jib Stop Damage!
Avoid jib stop damage. Do not allow the jib point to contact
the ground until jib stop pins are disengaged.
WARNING!
Pendant Under Tension!
Do not disconnect the pendants until they are slack.