Manitowoc Published 06-24-16, Control # 241-01 4-81
2250 OPERATOR MANUAL SETUP AND INSTALLATION
Connect Straps and Pendants to Equalizer
See Figure 4-45 for the following procedure.
The straps and links used to connect the boom straps to the
equalizer are stored on the boom butt wire rope guide
(see View A). To connect the boom straps to the equalizer,
proceed as follows.
1. Remove the strap storage pins (1, View A) securing the
links and straps to the boom butt wire rope guide.
2. Store the strap storage pins (1, View B).
3. Rotate the links (L2 or L3, View B) forward and pin them
to the boom straps on the boom section next to the
boom butt.
NOTE: See View B for strap-to-link pinning detail.
4. Attach a tagline to the lug on the front of the equalizer
(see View C). The tagline is required to pull the equalizer
forward when connecting links to the equalizer. One of
three methods can be used:
• Chain sling from another crane—Route the chain
sling around the bottom of the center sheave in the
boom butt wire rope guide.
• Load line from the load drum—Route the load line
over the top and around the bottom of the center
sheave in the boom butt wire rope guide. Connect to
the equalizer lug with a socket and wedge.
• Lever-operated hoist
5. Pull the equalizer forward with the tagline just enough to
loosen the connecting pins (3, View D) in the boom
handling holes (A, View D) between the equalizer and
rails.
6. Install the stop pins (4, View D) in the equalizer rail holes
closest to the end of the equalizer.
NOTE: The stop pins must be installed to prevent the
equalizer from accidentally sliding back on the rails
during link assembly.
7. Remove the connecting pins (3, View D) from the holes
(A, View D) and store them in the holders on the side of
the rails.
8. Rotate the links (L1 or L2, View D) to the rear and pin
them to the equalizer. Use the tagline to position the
equalizer as required.
NOTE: The spacer (8) must be installed between the links
(L1 or L2).
9. If equipped with intermediate suspension, proceed as
follows.
a. Pin the links (L4 or L5, View E) to the equalizer. The
lug on the links (L4 or L5) must face inward, and the
links must be positioned as shown in View F.
b. Pin the intermediate suspension pendants (P1,
View E) to the links (L4 or L5). The head of the pins
(9) must face inward, and the pendants must be
pinned to the proper holes (see View F).
10. While holding the equalizer with the tagline, remove stop
pins (4, View D) from the holes in the rails and store
them in the holders on the side of the rails.
11. Slacken the tagline to allow the equalizer to slide back
as far as it will go.
12. Disconnect the tagline from the equalizer.
Install Load Line
See Figure Figure Figure Load Line Reeving on page 4-122
for proper routing and reeving of the load lines to the upper
and lower boom points.
The load lines must be properly routed through the RCL
load-sensing sheaves as shown in the reeving diagrams.
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