SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-84
Published 06-24-16, Control # 241-01
Disconnect Boom Butt from Boom
See Figure 4-44 for the following procedure.
1. Slowly boom up until the boom hoist wire rope is taut
(see View E).
NOTE: Do not attempt to lift the boom with the equalizer
pinned to the rails.
2. Remove the horizontal pins between the boom butt and
adjacent insert (see View F).
3. Slowly boom down to lower the boom onto blocking at
least 152 mm (6 in) high (see View C).
4. Continue to boom down to disengage the fixed vertical
pins (see View D) from the connectors in the adjacent
boom section.
5. Travel the crane away from the boom and lower the
boom butt to the ground.
Install Assembly Block
If the crane will be used to disassemble its own boom, install
the assembly block.
Remove Jib
If equipped, remove the jib. See Jib Removal (#132 Jib) on
page 4-113).Figure Figure
Remove Upper Boom Point
See Figure 4-43 for the following procedure.
If equipped, remove the upper boom point as follows.
1. Support the upper boom point with lifting slings from the
crane.
2. Remove the upper pins (10, View C) from the holes (A).
3. Remove the upper boom point from the boom top.
Remove Intermediate Suspension Pendants
If equipped, remove and store the intermediate suspension
pendants and links (see Figure 4-44
, View A, and
Figure 4-45
, View E).
Store Boom Straps
See Figure 4-43 for the following procedure.
Perform the following steps at each set of strap links
between the boom sections (View A and View B).
1. Support the strap links so they cannot fall.
2. Unpin the top end of the strap links from the adjacent
strap.
NOTE: Store the connecting pin in the hole in the end of
the adjacent strap.
3. Rotate the strap links to the rear onto the strap bracket.
4. Install the strap storage pins in the top hole of all the
strap brackets to retain the straps and links for shipping.
Disassemble Boom Sections
Start at the boom top and work toward the boom butt when
disassembling inserts.
1. Attach lifting slings from the crane to the boom top.
2. Hoist so that the lifting slings are just taut.
3. Remove the horizontal pins between the boom top and
the adjacent insert.
4. Lift the boom top away from the insert.
5. Repeat step 1
through step 4 for each boom section.
WARNING
Falling Boom Hazard!
Avoid death or serious injury. Do not attempt to remove
the horizontal pins in step 2
until the boom hoist wire rope
is taut, or the boom butt and inserts will fall violently.
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