SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-58
Published 06-24-16, Control # 241-01
o Automatic boom stop is installed and properly adjusted.
o Boom hoist wire rope is reeved properly through the
gantry and equalizer sheaves and is anchored to the
boom hoist drums as shown on the Boom Rigging
Drawing.
o Equalizer is pinned to the boom butt rails.
o Gantry is pinned in the fully raised position.
o Assembly block is installed.
o Capacity is limited to 27 216 kg (60,000 lb) at a 13 m
(42 ft) radius for full 360° of rotation.
Lifting Lug Identification
Lower Tray
See Figure 4-32 for more information.
Lift the lower tray at the four lifting lugs (L1, View B). The
lifting lugs are designed for lifting the lower tray only.
Center Box
See Figure 4-32 for more information.
Lift the center box at two lifting lugs (L2, View C). The lifting
lugs are designed for lifting the center box only. Do not
attempt to lift the center box with the lower tray attached.
Side Box
See Figure 4-32 for more information.
Lift the side boxes at the two lifting pins (L3, View E). Do not
attempt to lift more than two side boxes at a time.
Assembling Upper Counterweight
(Series 1 and 2)
See Figure 4-32 for the following procedure.
NOTE: Assemble the complete counterweight assembly
on the ground.
1. If lowered, raise the counterweight lifting frame and the
pin in the operating position (see View F).
2. Lift the center tray into position on the lower tray and
align the connecting holes.
3. Pin the center tray to the lower tray (see View B).
NOTE: Make sure to install the washers and cotter pins.
4. Lift the side boxes into position on the lower tray and
align the connecting holes.
5. Pin the side boxes to the lower tray and to each other
(see View D).
NOTE: Make sure to install the safety pins.
WARNING
Falling Load Hazard!
Avoid death or serious injury. Lifting lugs may break,
allowing the counterweight to fall. Do not exceed the
capacity of lifting lugs specified.
WARNING
Falling Load Hazard!
Avoid death or serious injury. Do not attempt to lift the
lower tray at the lifting lugs when the center box or side
boxes are installed. Lifting lugs may break, allowing the
counterweight to fall.
WARNING
Falling Load Hazard!
Avoid death or serious injury. Cracks that develop on the
counterweight support lugs, could lead to unexpected
structural failure of the center box, allowing the
counterweights to fall from the crane. When installing and
removing the upper counterweight, inspect the
counterweight support lugs on the center box for cracks or
other damage (Figure 4-32
, View A). The lugs are
important structural components that hold the
counterweight on the upperworks.
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