SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-2
Published 06-24-16, Control # 241-01
SELF-ERECTING EQUIPMENT
See Figure 4-1 for assembly and disassembly.
The 2250 with self-erect is a self-erecting crane equipped
with the following components:
• Rotating bed jacking system with pads for lifting the
crane onto and off the trailer. The jacks are also used to
raise the crane during the crawler repositioning of the
carbody support pedestal.
• Hydraulically actuated pins for connecting and
disconnecting the crawlers to and from the carbody
• Hydraulic cylinders for raising and lowering the gantry
• Hydraulically actuated pins for connecting the crane
counterweight to the rear of the crane
• 27 t (30 USt) load block and 3-leg chain sling with hooks
for handling components
ASSEMBLY AND DISASSEMBLY NOTES
The crane, boom, and jib must be assembled and
disassembled by experienced personnel trained in erection
and operation of construction cranes.
Read and become thoroughly familiar with the instructions in
the applicable capacity charts and with the rigging drawings
before attempting to assemble or disassemble the crane,
boom, or jib.
Contact your Manitowoc Cranes dealer for assistance if any
procedure is not fully understood.
ASSEMBLY AND DISASSEMBLY AREA
Select an assembly/disassembly area that has a firm, level,
uniformly supporting surface. Make sure the area is large
enough to accommodate the crane, the selected boom and
jib length, movement of trucks with trailers, and movement of
the 2250 (or assist crane).
Set the carbody jack pads on a flat, firm foundation that will
support the load placed on them. The maximum load on
each jack is 40 824 kg (90,000 lb).
Do not set the jack pads in holes, on rocky ground, or on
extremely soft ground.
If necessary, use wood blocking or steel plates under the
jack pads to properly distribute loading. Blocking or steel
plates must be:
• Free of defects
• Strong enough to prevent being crushed or bent
• Of sufficient size to prevent settling under load
NOTE: Contact the Crane Care Lattice Team at Manitowoc
Cranes for ground bearing information.
ACCESSING PARTS
Some parts of the crane, boom, and jib cannot be reached
from the ground. Take necessary precautions to prevent
slipping and/or falling off the crane and attachment during
installation and removal.
The owner/user shall provide workers with approved ladders
or aerial work platforms to access those areas of the crane
and attachment that cannot be reached from the ground or
from steps, ladders, catwalks, and platforms provided by
Manitowoc Cranes.
NOTE: Adhere to local, state, and federal regulations for
handling personnel and for personnel fall
protection.
Optional boom ladders (stored in boom butt) are available
from Manitowoc Cranes. If your crane has ladders, see the
appropriate instructions.
Do not use the top of the boom or jib as walkways.
CRANE WEIGHTS
See Crane Weights on page 1-9 in Section 1 for the overall
weight of the crane and for the individual weights of the
components.
RETAINING CONNECTING PINS
Connecting pins are retained in various ways:
• Snap pins
• Quick-release pins
• Cotter pins
• Keeper plates with capscrews and lock washers
NOTE: Do not operate the crane until all connecting pins
are installed and properly retained.
MISCELLANEOUS LOOSE PARTS BOX
See Figure 4-2 for more information.
Miscellaneous loose parts are shipped in a job box with the
crane. The box contains standard items that are part of every
crane (for example, crawler shim kit, touch-up paint, and
spacers) as well as optional items (for example, wind speed
assembly, warning light assembly, aircraft warning light, cold
weather cap and receptacle, and mirror assemblies). A decal
on the inside of the box lid indicates the parts that should be
included in the parts box.
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