Manitowoc Published 03-29-17, Control # 064-23 v2 4-37
14000 OPERATOR MANUAL SETUP AND INSTALLATION
Install Boom Butt
Lifting Boom Butt
See Figure 4-19 for the following procedure.
Boom butt (1) is equipped with lifting lugs as shown in Views
A and B.
1. To handle PAST PRODUCTION boom butt (1), proceed
as follows:
See View A for the following procedure.
a. Attach chain sling (3) to assembly block (4).
b. Attach two legs of chain sling to front lifting lugs (5).
c. Attach other two legs of chain sling and owner-
furnished slings (6) to rear lifting lugs (7).
NOTE: When the boom butt is lifted with the owner-
furnished sling lengths given in View A, the bottom
chords of the butt will be approximately parallel to
ground.
2. To handle CURRENT PRODUCTION boom butt (1),
proceed as follows:
NOTE: When the boom butt is lifted with the current
production lifting lugs, the centerline of the butt will
be approximately parallel to ground.
See View B for the following procedure.
a. Attach chain sling (3) to assembly block (4).
b. For boom butt WITHOUT DRUM, attach two legs of
chain sling to top holes (A) in front lifting lugs (8).
Attach other two legs of chain sling to rear lifting
lugs (10).
c. For boom butt WITH DRUM, attach two legs of
chain sling to bottom holes (B) in front lifting lugs (8).
Attach other two legs of chain sling to middle lifting
lugs (9).