Manitowoc MLC300 User Manual

Manitowoc Published 11-20-19, Control # 234-19 4-29
MLC300 OPERATOR MANUAL SETUP AND INSTALLATION
3
1
4
Remove Live Mast Package from Trailer
See Figure 4-24 for the following procedure.
The live mast (1, View A), the boom hoist (2), and the boom
hoist equalizer (3) are shipped as an assembled package on
the mast hinge supports (4) and the stands (5).
An assist crane is required to handle, install, and remove the
live mast. The assist crane must meet the specifications
given in Figure 4-24
.
1. Position the trailer carrying the live mast package in the
assembly area.
2. Attach the Manitowoc supplied lifting slings (6, View A)
to the hook of the assist crane.
3. Connect the other end of the lifting slings (6, View A) to
the lifting lugs (7) on the live mast (1) with the Manitowoc
supplied shackles (8).
• Use one shackle at both rear lifting lugs.
• Use two shackles at the left-front lifting lug.
4. Remove the tie-downs and blocking securing the live
mast package to the trailer.
5. Lift the live mast package off the trailer and remove the
trailer.
The live mast package will hang approximately 6° out of
level (rear higher than front).
6. If the live mast package will be stored on the job site for
future installation, proceed as:
a. Lower the live mast package so the stands (5, View
B), the mast hinge support (4), and the boom hoist
(2) are firmly contacting level ground or other
foundation.
b. If the ground/foundation is not level, install blocking
(9, View B) between the boom hoist (2) and the
ground/foundation.
The boom hoist (2) must not be allowed to hang
suspended (unsupported) from the live mast (1).
c. Slacken and disconnect the lifting slings and the
shackles from the live mast.
Continued on next page.
WARNING
Falling Load Hazard
Prevent the live mast package from falling when lifted:
• Lift only with the specified rigging at the locations
shown in Figure 4-24
.
• Lifting in any other manner will cause the mast
package to hang out of level from side to side and
may cause the mast package to slide or rock to one
side.
CAUTION
The purpose of the hinge support (4, View B) is to prevent
excessive bending in the mast legs when the mast
package is tied down to the trailer.
Lateral movement of the live mast package as it is
lowered to the ground or other foundation will cause the
hinge support to pivot and not support the mast.

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English