Manitowoc Published 08-12-19, Control # 224-13_v2 4-95
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
BOOM ASSEMBLY
The MLC650 has several boom options. All boom options
are assembled in the same manner, as instructed in this
section.
Assemble the desired boom in the exact sequence
shown in the appropriate Boom Rigging Drawing at the
end of this section.
If equipped with an Extended Upper Boom Point,
supplemental assembly/disassembly instructions are
provided in a separate publication at the end of this section
or at the end of Section 4 in the MLC650 VPC-MAX Operator
Manual.
NOTE: To lift inserts, use shackles and lifting slings
attached to the self-erect cylinder rod end.
Reference charts found in Figure 4-7 on page 4-6
.
Assemble Boom Inserts and Top
See Figure 4-73 for the following procedure:
1. Rig the lifting slings (8) to the rod end (6) of the self-erect
cylinder (4) using shackles (7). This rigging will be used
for all inserts and the boom top.
2. Remove the insert (9) from the trailer(10).
a. Position the trailer with the insert on the desired side
of the crane at the specified radius.
NOTE: The first insert must be the 12 m (39.4 ft) insert with
sheaves.
b. Attach the lifting slings to the lifting lugs (12) on the
insert.
c. Lift the insert off of the trailer.
d. Remove the trailer.
3. Place the insert on blocking (13) approximately 381 mm
(15 in) high. This height will allow for installation of the
boom top.
4. Adjust the blocking as needed so that the insert is level.
5. Disconnect the lifting slings.
6. Repeat step 2
for the next insert (10).
Continued on page 97
.
WARNING
Crush Hazard!
For an unassisted raising, some boom lengths and boom
+ jib lengths require the crawlers to be blocked. Refer to
the Liftcrane Boom Capacities charts for configurations
that require crawler blocking.
Falling Load Hazard!
The luffing jib backstay straps can be stored on the boom
sections for shipping.
Refer to the Capacity Chart for operating restrictions if the
luffing jib backstay straps, links, and retaining hardware
will be left on the boom sections during operation without
a luffing jib.
Fall Hazard!
The boom sections are equipped with catwalks and
ladders for accessing boom components during crane
assembly and disassembly. Take every precaution to
prevent falling off boom sections: use personal fall
protection. See "Personal Fall-Protection" on page 4-3
.