Manitowoc MLC650 - Lower Boom Butt and 4 M Insert; Raise Carbody Platform

Manitowoc Published 08-12-19, Control # 224-13_v2 4-123
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
4
Lower Boom Butt and 4M Insert
See Figure 4-93, for the following procedure:
1. Confirm that the mast assist arms (9) are fully raised
before proceeding.
NOTE: The following will occur if the mast is raised to
vertical when the mast assist arms are down:
• The mast will stop rising.
• The hazard warning buzzer will sound and the
MAST ASSIST ARMS DOWN icon will appear
in the fault screen of the main display.
• Make sure the mast assist arms are up before
raising the mast to vertical.
2. Lower the combined boom butt and 4M insert onto
blocking (6) on the ground.
3. Remove the shackles and slings (4, 5, and 6).
4. Boom up until the mast angle is at 85° (7).
5. Retract the self-erect cylinder (1) until the pin (11) is
secure under the retention bracket (10).
Raise Carbody Platform
See Figure 4-94, for the following procedure:
1. Use an assist crane or forklift to hold the carbody
platform.
2. Remove the hitch pins (3).
3. Raise the carbody platform to the working position.
4. Insert the hitch pins (3).
5. Insert the hitch pins and safety pins (5).
6. Level the carbody platform if necessary by turning the
adjusters (2) until level.
7. Lower and remove assist crane or forklift.
WARNING
Mast Damage Hazard!
Do not exceed a maximum mast angle of 158° or mast will
damage will occur.
DANGER
Falling Mast/Boom Hazard!
Prevent the mast and the boom from falling:
• Fully lower the mast-assist arms before raising the
boom. The mast can buckle and collapse if it contacts
the mast-assist arms with a fully rigged boom.
M102799
Item Description
1 Wire Locking Pin
2 Adjuster
3Hitch Pin
4Strut
5 Hitch Pin with Safety Pin
FIGURE 4-94
2
5
Working Position