3.1.3
Electrical Alignment
Control system shall be aligned in accordance with manufacturer's
instructions. A copy of the final alignment data shall be stored in
control panel door and shall include but not be limited to timer settings,
resistor tap settings, potentiometer settings, test-point voltages, supply
voltages, motor voltages, motor currents and test conditions such as
ambient temperature, motor load, date performed and person performing the
alignment.
3.1.4
Welding
Welders, welding operations and welding procedures shall be qualified or
prequalified in accordance with AWS D14.1. Welding shall be performed
indoors and the surface of parts to be welded shall be free from rust,
scale, paint, grease or other foreign matter. Minimum preheat and
interpass temperatures shall conform to the requirements of AWS D14.1.
Welding shall be performed in accordance with written procedures which
specify the Contractor's standard dimensional tolerances for deviation from
camber and sweep. Such tolerances shall not exceed those specified in
accordance with AWS D14.1. Allowable stress ranges shall be in accordance
with CMAA 70. Welding of girders and beams shall conform with AWS D14.1.
3.1.5
Field Painting
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NOTE: The last sentence will only be required if
the bridge crane is in an explosion proof area.
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Painting required for surfaces not otherwise specified, and finish painting
of items only primed at the facility, shall be as specified in Section 09900
PAINTS AND COATINGS. Bridge crane including bridge, trolley, hoist and
all attached items shall be painted in accordance with the manufacturer's
standard practice. The complete crane shall be of one color. Bridge rail,
supports and bracing shall be painted in accordance with Section 09900
PAINTS AND COATINGS. Items such as surfaces in contact with the rail
wheels, wheel tread, hooks, wire rope, surfaces on the electrical collector
bars in contact with the collector shoes and nameplates shall not be
painted. The requirements of explosion proof cables shall be coordinated
with cable manufacturer.
3.2
ACCEPTANCE TESTING
3.2.1
General
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NOTE: This paragraph applies to new construction
only. Specify the test weights required. The
weights normally required are the rated load, 125
percent of the rated load and 10 percent of the
rated load (for the grounding and the
acceleration/deceleration test).
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Contractor shall provide all personnel necessary to conduct the required
testing which shall include but not be limited to crane operators, riggers,
rigging gear and test weights. Testing shall be performed in the presence
of Contracting Officer or his designated representative. Contractor shall
SECTION 14630A
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