Manitowoc 3900W - Pedestal;Barge Mounted Cranes

© 2002 Manitowoc Cranes, Inc.
Rev. 04-08-2002 Folio 1064-1
PEDESTAL/BARGE MOUNTED CRANES
Definitions & Operating Precautions
Table of Contents
PEDESTAL MOUNTED CRANE
Definition
A pedestal mounted crane is a crane which is securely
fastened to a foundation, barge, ship or floating platform so
the crane is restrained from tipping.
Examples
1.
Crane upperworks mounted on a turret (or tub) which is
securely fastened to the foundation (Figure 1).
2.
Crane upperworks mounted on a carbody (crawlers
removed) which is securely fastened to the foundation
(Figure 2).
Pedestal Mounted Crane ..................................................1
Definition....................................................................1
Examples ...................................................................1
Barge Mounted Crane.......................................................2
Definition....................................................................2
Examples ...................................................................2
Capacity Charts ................................................................3
Shock Loading ..................................................................3
Definition....................................................................3
Operation On Barge..........................................................3
General ......................................................................3
Definitions ..................................................................4
Crane Inspection...............................................................4
Transporting Crane...........................................................4
WARNING
Crane owner/user must verify that method used to fasten
or restrain crane to foundation, barge, ship or floating
platform is strong enough, under all operating conditions,
to prevent crane from breaking off foundation or moving
on barge.
Manitowoc does not permit use of a truckcrane on a
barge, ship or floating platform.
Turret
Foundation
FIGURE 1
A839
WARNING
Overload Hazard!
A pedestal mounted crane will not tip to indicate to
operator that crane’s capacity has been exceeded. When
capacity of a pedestal mounted crane is exceeded, hook
rollers or other structural components may break, before
load lines fail, causing crane to separate from pedestal.
For this reason, great care must be taken to operate a
pedestal mounted crane within its rated capacity.
Careful planning is required before a crane can be
operated on a barge. Crane user shall verify that barge is
capable of limiting crane list and/or dynamics to maximum
allowable specified on capacity charts. If specified crane
list and/or dynamic conditions are exceeded, crane’s
capacity may be exceeded; therefore, hook rollers or
other structural components may break, causing crane to
separate from pedestal.
Foundation
Carbody
FIGURE
2
A839
NOTE: If bolting carbody to foundation, contact
Technical Services at factory both for
recommended bolt pattern and for type and
quantity of bolts to be used.
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