Manitowoc Published 06-24-16, Control # 241-01 4-57
2250 OPERATOR MANUAL SETUP AND INSTALLATION
COUNTERWEIGHT INSTALLATION AND
REMOVAL
General
Counterweight installation or removal requires two people:
• One to operate the controls in the operator’s cab
• One to operate the remote controls from ground level, to
observe the installation or removal procedure, and to
provide the necessary signals to the operator in the cab
NOTE: Personnel shall read and become thoroughly
familiar with the instructions and the Gantry
Raising and Lowering (with Boom Butt Handling
Cylinder) on page 4-50 section before attempting
any procedure.
Operating Controls
The gantry cylinders and counterweight attaching pins are
controlled with switches on the crane setup remote control.
See Section 3 for identification and location of all operating
controls.
Handling Counterweight
See Figure 4-31 for more information.
The 2250 can handle and assemble its own counterweight
using the boom butt when equipped with the optional guide
sheaves in the boom butt and the 27 t (30 USt) assembly
block. Otherwise, an assist crane is required.
The 2250 must be in the following configuration to handle
and assemble its own counterweight:
o Crane (with crawlers installed) is on a firm, level surface.
o Boom butt is pinned to the crane, as shown on the Boom
Rigging Drawing.
o Physical boom stop is installed.
FIGURE 4-31
A1048
Gantry Fully
Raised
Maximum Capacity of
27 216 kg (60,000 lbs)
at 13 m (42 ft) Radius
Equalizer
(pinned to rails)
Physical
Boom Stop
Guide Sheaves
(for 28 mm [1-1/8 in]
wire rope)
Boom Butt
27 t (30 USt)
Assembly Block
4-Leg Chain Sling
(supplied by Manitowoc
Cranes or by crane
owner)
Counterweight
WARNING
Falling Load Hazard!
Avoid serious injury and tipping the crane. Do not exceed
27 216 kg (60,000 lb) capacity at a 13 m (42 ft) radius.
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