Manitowoc Published 08-12-19, Control # 224-13_v2 4-135
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
Prepare Intermediate Suspension Pendants
Legend for Figure 4-102
See Figure 4-102, for the following steps.
The intermediate suspension pendants (1) and rigging
components are pre-assembled and shipped in the 12 m
(39.4 ft) intermediate suspension insert (2).
Each pendant (1) is equipped with multiple buttons (3). The
pendant buttons are numbered.
Depending on the Boom Rigging Drawing in use, the
intermediate suspension pendants (1a, View C) may be
required.
1. Make sure the intermediate suspension insert (2) is
installed at the proper location in the boom.
2. Refer to Boom Make-Up Table in the appropriate Boom
Rigging Drawing at the end of this section to determine
the following:
- Pendant button number (see A, Figure 4-103
) that
must be pinned to the sockets
- Whether or not intermediate suspension pendants
(1a) are required (see B, Figure 4-103
)
The Boom Make-Up Table will vary from one Boom
Rigging Drawing to another.
3. Disconnect the pendant hooks (6, View E) from the
lacing on the insert.
4. Remove the pins (8, View F) to disconnect the
intermediate suspension pendants (1) from the shipping
lugs.
5. If required, pin the intermediate suspension pendants
(1a, View C) to the intermediate suspension pendants
(1). The pendants (1a) are stored on the intermediate
wire rope guide shown in Figure 4-76 on page 4-98
.
6. Pin the intermediate suspension pendants (1, View A) or
the intermediate suspension pendants (1a, View C) to
the links (9) with the pins (8).
7. Perform the remaining steps as the boom is raised:
a. As the boom straps rise during the boom raising
procedure (page 4-136
), guide the intermediate
suspension pendants through the opening between
the boom inserts. Take care not to damage
lacings.
b. Signal the crane operator to stop the boom raising
procedure when the required pendant buttons (3)
are near the sockets (5, View B).
c. Remove the locking hitch pins (4a, View B).
d. Insert the proper pendant button (3, View B) into
each socket (5).
e. Reinstall the locking hitch pins (4a, View B).
f. Remove the retaining hitch pins (7a, View B) and
install them in the working position (7b, View A).
g. Connect the pendant hooks (6, View D) to the
closest point on the chord to remove the slack from
the pendants.
h. Continue the boom raising procedure.
Item Description
1 Intermediate Suspension Pendant (2)
1a Intermediate Suspension Pendant (2)
35 mm (1-3/8 in) Diameter x 1,8 m (5 ft 10 in) Long
2 12 m (39.4 ft) Intermediate Suspension Insert
3 Pendant Button
4a Retaining Hitch Pin with Hair-Pin Cotter (stowed)
4b Retaining Hitch Pin with Hair-Pin Cotter (working)
5Socket (2)
6 Pendant Chain and Hook
7a Locking Hitch Pin with Hair-Pin Cotter (stowed or
shipping)
7b Locking Hitch Pin with Hair-Pin Cotter (working)
8 Pin (2 or 4)
9Link (2)
FIGURE 4-103
Example of Boom Make Up Table
on Boom Rigging Drawing
BA