SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-62
Published 06-24-16, Control # 241-01
Installing/Removing Counterweight
Requirements
The 2250 can install and remove its own counterweight using
the gantry as a lifting device. If equipped with only a boom
butt, the 2250 must be in the same configuration as when
handling the counterweight (Figure 4-31
).
NOTE: The assembly block (if installed) must be kept on
the ground while installing and removing the
counterweight.
It will be necessary to travel the crane in either direction to
align the handling links when installing and removing the
counterweight. For this reason, the following steps must be
taken if the 2250 is equipped with a fully rigged boom.
1. Lower the boom onto the blocking at least six inches
high.
2. Pin the equalizer to the rails on the boom butt.
3. Disconnect the straps from the equalizer. See the Boom
Rigging Drawing.
4. Disconnect the boom butt from the boom.
5. Pay out the load lines as the crane is traveled.
Installing Carbody Counterweights (Series 2)
See Figure 4-34 for more information.
Carbody counterweights are required for the Series 2
configuration.
Install the carbody counterweights before installing the upper
counterweight as follows.
1. Using the assembly block and the 4-leg chain sling from
the 2250, lift the center box into position at either end of
the carbody.
2. Boom, hoist, and swing as required to engage the slots
in the top of the center box with the hooks on the
carbody (see View A).
3. Lower the center box until the bottom connecting holes
line up.
4. Install the connecting pins (see View A). Make sure to
install the cotter pins to retain the connecting pins.
5. Repeat step 1
through step 4 for the other end of the
carbody.
Removing Carbody Counterweights (Series 2)
Remove the upper counterweight first. Then remove the
carbody counterweights, as follows.
1. Using the assembly block and the 4-leg chain sling from
the 2250, attach the chain sling hooks from the
assembly block to the lifting lugs on the center box.
2. Remove the connecting pins (see View A).
3. Slowly lift the center box clear off the hooks on the
carbody.
4. Lower the center box to the ground or onto the transport
vehicle.
5. Repeat step 1
through step 4 for the other end of the
carbody.
Installing Upper Counterweight (Series 1 and 2)
See Figure 4-34 for more information.
1. If the crane will be rigged as a Series 2, install the
carbody counterweights before installing the upper
WARNING
Moving Part Hazard!
Avoid serious injury. It is necessary to stand on the upper
counterweight to gain access to the handling links on the
gantry. It may be necessary to climb onto the upper
counterweight to engage and disengage the handling
links.
Stay off the counterweight while the gantry is being raised
and lowered. Do not climb onto the counterweight until the
gantry is at rest on the gantry cylinders.
Do not stand between the counterweight and the crane
while the counterweight is being installed. Never go under
the counterweights until they are pinned to the crane.
CAUTION
Boom Butt Damage!
If the boom butt is being used to install the carbody
counterweights, do not raise the boom butt to the point
that the physical boom stops bottom out. The boom stop
tubes and butt will be damaged.
WARNING
Tipping Hazard!
Avoid possible injury. For Series 1 and 2 configurations,
install the carbody counterweights before installing the
crane counterweight. Otherwise, the crane could tip. For
the same reason, remove the crane counterweight before
removing the carbody counterweights.
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