Manitowoc MLC650 User Manual

Manitowoc Published 08-12-19, Control # 224-13_v2 4-127
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
4
Connect 4M to Boom
NOTE: If not already done, install the counterweight
boxes. See: "Install Counterweight Boxes" on
page 4-83
See Figure 4-97, for the following procedure:
1. Boom down to attach the live mast straps (5) to the 4M
closing lugs using the Manitowoc supplied shackles and
slings.
2. Remove the bushings from the stored position (6a) and
place the bushings (6b) into the live mast straps (5).
3. Install the shackles (7) with the spreader sling (8)
between the straps (5).
4. Connect the slings (9) to the shackles (7) and then
connect the slings (9) to the 4M insert using shackles
(10).
5. Boom up to lift the 4M insert clear of the ground.
6. Position the crane so the 4M insert is in line with the 12M
insert with sheaves.
7. Travel forward slowly, swing, and boom up and down as
needed to engage the hooked connectors (2) on the 4M
insert with the fixed horizontal pins (1) on the 12M insert
with sheaves.
8. Check the appropriate capacity chart to see if the
crawlers need to be blocked to raise the boom. If so,
proceed as follows:
a. Mark the ground at the center of the front crawler
rollers or the drive tumblers.
See the Crawler Blocking Diagram in the Capacity
Chart Manual for blocking requirements.
b. Boom down to disengage the hooked connectors
(2) on the 4M insert from the fixed horizontal pins (1)
on the adjacent insert.
c. Slowly travel in reverse several feet.
d. Place the required blocking on the ground at the
points marked in step 8a
.
e. Repeat step 7
while traveling onto the blocking.
9. Raise the 4M insert until the bottom connector holes are
aligned.
10. Insert the pins (4) in the lower connecting holes and
secure them with safety pins (3). The pins are stored in
holders on the adjacent insert.
11. Boom down to disconnect boom handling shackles and
slings.
12. Remove the bushings (6b) from the live mast straps (5)
and store (6a) them on the 4M insert.
WARNING
Tipping Hazard!
Prevent crane from tipping:
• Block the crawlers — if required per the capacity
chart — before attempting to raise the boom.
WARNING
Crushing Injury Hazard!
Prevent serious crushing injury:
• Do not stand inside the boom sections while installing
the connector pins — STAND OUTSIDE BOOM.
WARNING
Equipment Damage!
Do not boom up past the alignment of the lower pin
connector holes.
Do not boom up after lower pins are installed.
• Damage to mast or boom butt and 4M insert could
occur or mast damage could occur.

Manitowoc MLC650 Specifications

General

Brand	Manitowoc
Model	MLC650
Category	Construction Equipment
Language	English