Manitowoc 18000 User Manual

Reference Only
SET-UP AND INSTALLATION 18000 OPERATOR MANUAL
4-80
Published 12-05-17, Control # 032-23
BOOM AND JIB RIGGING
Assist Crane Requirements
An assist crane capable of handling the boom and jib
sections and lifting one-half the weight of the boom (or jib) is
required. See Crane Weights in Section 1 for the weights of
boom and jib sections.
Blocked Crawler
To prevent the crane from tipping, some boom and jib
lengths must be raised and lowered over the end of blocked
crawlers. See capacity charts for blocked crawler
requirements and Crawler Blocking Diagram in Capacity
Chart Manual for instructions.
Do not attempt to raise or lower boom from or to ground until
crawlers are blocked, if required.
Handling Components
Handle boom and jib sections with care to avoid damaging
lacings and chords. The boom and jib sections have lifting
lugs designed to provide a balanced load and to prevent
damage during lifting.
Rigging Assembly Drawings
Boom and jib sections (top, inserts, straps) must be
assembled in proper sequence according to applicable
Boom and Jib Rigging drawings at the end of this section.
Medium Inserts
Medium inserts have lighter weight chords and lacing than
regular inserts, as indicated in the following table. The
diameter of the lacings is the most visible difference.
Medium inserts are required as follows:
• Cranes equipped with a 140 ft (42,7 m) mast and boom
320 ft (97,5 m) or longer
• Cranes equipped with a 100 ft (30 m) mast and boom
320 ft (97,5 m) long
The medium insert(s) must be installed as shown in the
Boom Rigging Assembly Drawings.
WARNING
Tipping Hazard
Block ends of crawlers, if required, before you attempt to
raise or lower boom from or to ground.
WARNING
Falling Load Hazard!
Lifting lugs on a particular boom or jib section are
designed for lifting that section only. Do not attempt to lift
two or more boom or jib sections with lifting lugs only on
one section. Lifting lugs may break allowing boom or jib
sections to fall.
When lifting lugs are not used:
• Lift against chords only, never against lacings.
• Use nylon lifting slings. If wire rope or chain slings are
used, install protective covering (such as sections of
rubber tire) between slings and chords.
Medium Insert Regular Insert
Outside
Diameter
Wall
Thickness
Outside
Diameter
Wall
Thickness
Lacings
4 in
(101,6 mm)
0.25 in
(6,4 mm)
4.25 in
(108,0 mm)
11/32 in
(8,7 mm)
Chords
8-47/64 in
(221,7 mm)
35/64 in
(14,0 mm)
8-47/64 in
(221,7 mm)
3/4 in
(19,1 mm)
DANGER
Collapsing Boom Hazard!
Boom will collapse if medium inserts are installed in
incorrect assembly sequence. Follow the assembly
sequence indicated in the Boom Rigging Assembly
Drawings.

Manitowoc 18000 Specifications

General

Brand	Manitowoc
Model	18000
Category	Construction Equipment
Language	English