quality/fade-resistant stick-on labels with letters large enough to be
easily read from the floor. Capacity plates shall be placed in a location
visible to pendant operator's position after the crane has been installed.
2.1.5
Safety Warnings
Readable warning labels shall be affixed to each lift block or control
pendant in a readable position in accordance with ASME B30.16, ASME B30.2
and ASME B30.17. The Contractor shall submit these safety warnings,
diagrams and other framed instructions for display as indicated by the
Contractin Officer.
a. The word "WARNING" or other legend shall be designed to bring the
label to the attention of the operator. Warning labels shall be
durable type and display the following information concerning
safe-operating procedures: Cautionary language against lifting more
than the rated load; operating the hoist when the hook is not centered
under the hoist; operating hoist with twisted, kinked or damaged rope;
operating damaged or malfunctioning hoist; operating a rope hoist with
a rope that is not properly seated in its hoist drum groove; lifting
people; lifting loads over people; and removing or obscuring the
warning label.
b. To avoid operation of crane in the wrong direction, the words
"FORWARD" and "REVERSE" and accompanying directional arrows shall be
affixed in a location on the trolley and bridge which are visible and
readable to the operator from pendant station. The words "FORWARD" and
"REVERSE" shall agree with the markings on control pendant.
Directional arrows shall not be indicated on control pendant.
2.2
STRUCTURAL MATERIALS
2.2.1
Bolts, Nuts and Washers
High-strength bolted connections shall utilize SAE Grade 5 bolts with
corresponding lockwashers, nuts, etc., conforming to requirements of AISC
316 bolts. Bolts, nuts and washers shall conform to ASTM A 325M ASTM A 325
bolts. Galvanized bolts are not acceptable. ASTM A 490M ASTM A 490 bolts
shall not be used.
2.2.2
[Bridge] [Gantry] Girder or Girders
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NOTE: Specify welded structural steel box sections
for multiple girder cranes Class C, D, or E with a
capacity greater than 18 metric tons (20 tons) or a
span greater than 12 m (40 feet).
**************************************************************************
Bridge girders shall be [welded structural steel box sections] [wide flange
beams, standard I-Beams, reinforced beams or sections fabricated from
rolled plates and shapes].
2.2.3
Bridge Rails or Bars
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NOTE: Remove this paragraph for underhung cranes
and cranes having a capacity less than 18 metric
tons (20 tons) (many crane manufacturers do not need
SECTION 14630A
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