Manitowoc Published 08-06-19, Control # 237-09_v2 4-59
MLC165-1 OPERATOR MANUAL SETUP AND INSTALLATION
Disconnect Boom Butt from Boom
See Figure 4-47.
1. Connect lifting slings from the assist crane to the top two
lifting lugs (3, View A) on the boom butt (1):
Use a 2-leg chain sling or shackles and synthetic slings.
The assist crane and lifting slings must be sized to lift
half the weight of the assembled boom.
2. Hoist just enough to support the boom butt.
3. Remove the bottom connector pins (4, View B) and
install them in the brackets (5) on the boom butt (1).
4. Slowly lower the boom butt and boom sections onto
blocking at least 9 in (229 mm) high.
5. Slacken the lifting slings and disconnect them from the
boom butt.
6. Remove the top connector pins (6, View B) and store
them in the brackets (7) on the insert (2).
Disassemble Boom from Boom Butt
Read the following topics before proceeding:
- Boom Ladders on page 4-85
- Boom and Jib Rigging on page 4-86
WARNING
Crushing Injury Hazard!
Prevent serious crushing injury:
• Do not stand inside the boom sections while installing
the connector pins — STAND OUTSIDE BOOM.