Manitowoc MLC300 User Manual

Manitowoc Published 11-20-19, Control # 234-19 4-95
MLC300 OPERATOR MANUAL SETUP AND INSTALLATION
3
1
4
Install Upper Boom Point
See Figure 4-67 for the following procedure.
1. Attach lifting slings from the self-erect cylinder (or an
assist crane) to the upper boom point (1).
Current production cranes have a lifting lug (1a).
2. Lift the upper boom point into position at the lower boom
point.
3. Remove the upper pins (2) from the upper boom point.
The lower pins can remain in place.
4. Align the upper holes in the upper boom point with the
holes in the lower boom point and install the upper pins
(2).
5. Lower the upper boom point so the sheaves rest on
blocking high enough to prevent the block-up limit lug (3)
from contacting the ground.
6. Disconnect the lifting slings.
7. Connect the electric cable (5) from the upper boom point
to the WBT1-J2 receptacle (6) on the boom top (View A).
The electric cable is stored on the brackets on the left
side of the upper boom point.
8. Install the lower pins (4), as follows, when the boom is
raised:
a. Remove the lower pins (4) from the upper boom
point.
b. Slowly boom up to align the bottom connecting
holes.
c. Install the lower pins (4).
Connect Terminator/Shorting Plugs at Boom
Top
See Figure 4-67 for the following procedure. Refer to the
decal on the side of the boom top for a detailed wiring
diagram.
• If the crane will not be equipped with a luffing jib,
terminator plug (9) must be connected to the CAN NET
OUT electric cable (8) in the boom top.
• If the crane will not be equipped with an upper boom
point or a fixed jib, the shorting plug (7) must be
connected to the ATTACHMENTS receptacle (6).
• If the block-up limit is disconnected at either boom point
(lower or upper) the shorting plug (14) must be
connected to the corresponding electric cable (12 and/or
13).
WARNING
Tipping Crane Hazard!
To raise some boom lengths, the upper boom point must
be removed. The crane will tip if this is not done.
Refer to the appropriate Liftcrane Boom Capacity Chart to
determine the upper boom point requirements and
deducts.

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English