© 2003 Manitowoc Cranes, Inc.
Rev. 03-26-2003 Folio 1474-1
BOOM DISASSEMBLY SAFETY CONSIDERATIONS
All Models
TABLE OF CONTENTS
Safe handling of lattice booms during disassembly is a
primary concern for preventing serious or fatal injuries. A
boom can collapse during disassembly if workers fail to
observe safe working practices.
Accidents during boom disassembly usually result from one
of three primary causes:
• Workers are not familiar with the equipment or are not
properly trained.
• The location is not suitable.
• Safe procedures are overlooked because not enough
time is allocated for the task.
GENERAL
NOTE:
Boom
as used in this folio applies to all lattice
attachments (jib, mast, tower, etc.)
Boom disassembly safety decals (Figure 1) are placed on
the boom sections as shown on the Boom Disassembly
Decal Drawing (in Service or Operator's Manual).
This folio includes general safety information for boom
disassembly. Workers involved with boom disassembly must
be experienced personnel trained in the operation and
disassembly of construction cranes. Everyone must read
and understand this folio and the information in the rigging
drawing before beginning disassembly. Anyone who has a
question should ask for an explanation.
One person who
does not understand or fails to follow correct procedures can
jeopardize the safety of other workers.
PIN REMOVAL
When removing pins from boom sections, stand clear of the
pins being removed. Even though the boom is resting on
blocking, individual pin connections may still be under load.
Pins can be ejected forcefully if boom has any pressure on it
or if boom is not supported properly.
Always drive pins from the outside of the boom to the inside.
Be careful that ejected pins do not damage lacings.
LOCATION
Select a suitable location for boom disassembly. It must be
firm and level and be free of obstructions. It should have
enough open space to accommodate the crane, the length of
boom, and the movement of assist crane or other equipment.
If possible, secure the area to keep unauthorized personnel
and vehicles away.
General.......................................................................... 1
Pin Removal .................................................................. 1
Location ......................................................................... 1
Disassembly Procedures............................................... 2
DANGER!
Collapsing Boom Hazard!
Prevent death or serious injury when disassembling boom
sections — read and follow instructions in this folio.
FIGURE 1
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