Manitowoc MLC300 User Manual

Manitowoc Published 11-20-19, Control # 234-19 4-67
MLC300 OPERATOR MANUAL SETUP AND INSTALLATION
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Remove Counterweight Tray from Trailer
If desired to expedite removal, the MLC300 live mast and
self-erect cylinder can be used to remove the counterweight
tray from the trailer. Alternatively, an assist crane can be
used for this procedure.
See Figure 4-48
for the following procedure.
1. Position the trailer (1) carrying the counterweight tray (2)
on the desired side of the crane at the specified radius.
2. Remove the tie-downs and blocking securing the
counterweight tray to the trailer.
3. Swing the upperworks so the self-erect cylinder (3) and
lifting slings (4) are centered over the counterweight
tray.
4. Connect the four lifting slings (4) to the four lifting lugs
(6) on the counterweight tray with shackles (5).
5. Retract the self-erect cylinder to lift the counterweight
tray clear of the trailer.
6. Remove the trailer.
7. Place the counterweight tray on blocking in the
assembly area.
8. Disconnect the lifting slings.
Remove Counterweight Boxes from Trailer
If desired to expedite removal, the MLC300 live mast and
self-erect cylinder can be used to remove the counterweight
boxes from the trailer. Alternatively, an assist crane can be
used for this procedure.
See Figure 4-49
for the following procedure.
NOTE One or two boxes can be lifted at a time.
1. Use only the lifting slings shown in View B.
2. Position the trailer (1) carrying the counterweight box (2)
on the desired side of the crane at the specified radius.
3. Remove the tie-downs and blocking securing the
counterweight box to the trailer.
4. Swing the upperworks so the self-erect cylinder (3) and
lifting slings (4) are centered over the counterweight
boxes.
5. Connect the lifting slings (4) to the two lifting lugs (6) on
the counterweight box.
6. Retract the self-erect cylinder to lift the counterweight
box clear of the trailer.
7. Remove the trailer.
8. Place the counterweight box in the assembly area for
installation later.
9. Disconnect the lifting slings.
10. Repeat the steps for all of the counterweight boxes.
Assemble Boom and Jib
The boom and jib can be assembled with the MLC300 live
mast and self-erect cylinder or with an assist crane. See
"Boom and Jib Rigging — General" on page 4-74
for
instructions.
If the MLC300 will be used to assemble the boom and jib,
install the counterweight tray and counterweight boxes
AFTER the boom and jib are assembled. The MLC300 will
be much easier to maneuver without crane counterweight.
WARNING
Crush Hazard!
• Do not lift more than two boxes at a time. The lifting
lugs may break resulting in the boxes falling.

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English