Manitowoc MLC300 User Manual

Manitowoc Published 11-20-19, Control # 234-19 4-75
MLC300 OPERATOR MANUAL SETUP AND INSTALLATION
3
1
4
Blocked Crawlers
To prevent the crane from tipping, some boom and jib
lengths must be raised and lowered over blocked crawlers.
See the appropriate boom or jib capacity chart for blocked
crawler requirements and the Crawler Blocking Diagram in
the Capacity Chart Manual for instructions.
Boom Handling with Mast
Boom handling with the mast must be limited to the boom
length given in the Boom Rigging Drawing at the end of this
section.
Assembly Drawings
Boom and jib components (top, inserts, butt, straps) must be
assembled in the proper sequence according to the
applicable Boom and Jib Assembly Drawings at the end of
this section.
Identifying Boom and Jib Components
The boom and jib sections are marked for proper
identification as shown in View A, Figure 4-55. An
identification plate is located near the top end of all four
chords.
The boom inserts also have two chord identification plates as
shown in View B, Figure 4-55
. The plate is located on top
end of the right-top chord and the butt end of the left-top
chord.
The jib pendants are marked for proper identification as
shown in View C, Figure 4-55
.
The boom straps and links are marked for proper
identification as shown in View D, Figure 4-55
.
DANGER
Tipping Hazard!
Do not attempt to raise or lower the boom or the boom
and jib from or to the ground until the crawlers are
blocked, if required. Otherwise, the crane will tip.
WARNING
Falling Boom Hazard!
Do not attempt to handle more boom with the mast than
specified in the Boom Rigging Drawing. Structural failure
of components can occur, allowing the boom to fall.
Item Description
1 Boom or Jib Chord
2 Boom or Jib Number
3 Manitowoc Part Number
4 Manitowoc Manufacturing Code
5 Chord Identification:
H = Heavy
L = Light
M = Medium
6 Pendant
7Diameter
8 Length
9 Manitowoc Purchase Order Number
10 Wire Rope Type
11 Set Number
12 Manufacturer’s Number
13 Aluminum Tag (if equipped)
14 Boom or Jib Strap
Figure 4-55
View A
View C
View D
View B

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English