Manitowoc 2250 User Manual

Reference Only
SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-106
Published 06-24-16, Control # 241-01
Returning Crane to Normal Operation
See Figure 4-55 for the following procedure.
1. Position the crane on a firm, level surface.
2. Lower the load to the ground.
3. Lower the boom onto blocking at the ground level.
4. Fully lower the gantry. See Raising and Lowering Gantry
with Fully Rigged Boom on page 4-55.
5. Perform the following steps on both sides of the gantry.
a. Remove the pin (3) to unpin the hold-down pendant
from the links (2, View C).
b. Securely connect the hold-down pendant to the
backhitch leg with the storage strap (see View B).
c. Attach the pin (3) into the links (2).
d. If desired, leave the links (2) and pins (1 and 3)
attached to the counterweight adapter for storage.
Otherwise, remove the links and pins and store
them in a safe location for future use.
6. Increase the boom to the desired length.
7. Fully raise the gantry. See Raising and Lowering Gantry
with Fully Rigged Boom on page 4-55.
JIB INSTALLATION (#132 JIB)
General
This topic contains the installation and removal instructions
for the #132 jib on the #44 boom with heavy lift or long reach
top.
The jib consists of a 6,1 m (20 ft) butt and a 6,1 m (20 ft) top,
providing a basic length of 12,2 m (40 ft). Inserts are
available in 6,1 m (20 ft) lengths, allowing the jib to be
lengthened to a maximum of 36,6 m (120 ft) (Figure 4-59
).
Jib offsets of 5°, 15°, and 30° are obtained by changing the
length of the jib backstay straps, links, and pendants
(Figure 4-53
).
It is assumed for these instructions that the boom is
completely installed and ready for operation.
An assist crane with sufficient capacity to lift one half the
weight of the jib is required. For weights of the jib
components, see Crane Weights on page 1-9
.
Jib Assembly Drawing
See Figure 4-59 for the following procedure.
Jib components (top, inserts, butt, and pendants) must be
assembled in the proper sequence according to this topic
and the Jib Rigging drawing.
• Determine the quantity and length of inserts and
pendants required for the various jib lengths.
• See the applicable Jib Lifting Capacity Chart for the
boom and jib length limitations.
WARNING
Collapsing Jib Hazard!
To prevent death or serious injury, do not stand on, inside,
or under the jib during assembly or disassembly. Always
stand outside the jib when installing or removing the
connecting pins.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English