Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 4-95
2250 OPERATOR MANUAL SETUP AND INSTALLATION
4
EXTENDED UPPER BOOM POINT RIGGING
GUIDE
General
See Figure 4-51 for the following information.
The extended upper boom point rigging guide provides the
installation and removal instructions for the #44 boom with
heavy lift top.
The extended upper boom point consists of a 1,5 m (5 ft) butt
and a 6,1 m (20 ft) top, providing a basic length of 7,6 m
(25 ft).
It is assumed for these instructions that the boom is
completely installed and ready for operation.
Assist Crane Requirements
An assist crane is not required. See Crane Weights in
Section 1 for weights of extended upper boom point
components.
Assembly Drawing
Extended upper boom point components (top, butt,
pendants) must be assembled in the proper sequence
according to the following instructions and the Extended
Upper Boom Point Assembly drawing.
• See Figure 4-52
and 4-53 to determine the quantity and
length of the pendants required
• See applicable Liftcrane Boom Capacity Chart for the
boom length limitations
Installing Extended Upper Boom Point
Prepare Boom
See Figure 4-51 for the following procedure.
1. Lower the boom to the ground. Block if necessary.
2. Remove the load line from the upper boom point, if
equipped.
3. Remove and store the upper boom point.
4. Install the upper point backstay links if not already
installed. The upper point backstay links must be
installed between the boom inserts at the position shown
in View A.
5. If necessary, separate the boom inserts to provide space
for installing links.
6. Lift the backstay link into position on either side of the
insert.
NOTE: The lug at the bottom connecting holes in the link
must be facing toward the outside of the boom.
(see View F).
7. Lift the backstay link upward and engage the hole in the
link with the washer (2, View F) on the underside of the
insert connector.
8. Install the retaining pin (3, View F) through the holes on
the butt side of the link to prevent the link from falling off
the insert.
9. Repeat step 4
through step 8 for the backstay insert on
the other side of the boom.
10. Reconnect the boom inserts.
11. Replace the standard horizontal connecting pins with the
longer 275 mm (10-27/32 in) connecting pin (4, View F)
supplied with the backstay link.
Attach Extended Upper Boom Point
See Figure 4-51 for the following procedures.
NOTE: The extended upper boom point strut is shipped in
the stored position on the butt (see View A).
If the extended upper boom point is shipped assembled,
perform the following procedure.
1. Lift the extended upper boom point butt into position at
the end of the boom top.
2. Align the holes in the extended upper boom point butt
with the holes in the boom top and install the connecting
pins (see View B).
3. Make sure that the pin heads on the top are facing
toward the outside.
If the extended upper boom point is shipped unassembled,
perform the following procedure.
1. Lift the extended upper boom point butt into position at
the end of the boom top.
WARNING
Collapsing Upper Boom Point Hazard!
To prevent death or serious injury, do not stand on, inside,
or under the extended upper boom point during assembly
or disassembly. Always stand outside of the extended
upper boom point when installing or removing the
connecting pins.
CAUTION
Equipment Damage!
Straps dropping from the strap rests will damage the
controls. Handle the upper boom point with care so that
the straps remain seated on the rests (see View C).

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English