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Li D. On surfaces inaccessible after assembly or erection, apply two coats of the specified <br /> 2 primer. Change color of second coat to distinguish it from the first. <br /> 3 <br /> ' 4 E. Properly mark and match-mark materials for field assembly and for identification as to <br /> 5 location for which intended. <br /> 6 <br /> z F. Fabricate for delivery sequence which will expedite erection and minimize field handling of <br /> 6 materials. <br /> s <br /> to G. Where finishing is required, complete the assembly, including welding of units, before start <br /> 11 of finishing operations. <br /> 1z <br /> 13 H. Provide finish surfaces of members epoxied in the final structure free of markings, burrs, <br /> ' 14 and other defects. <br /> 15 <br /> 16 2.03 CASTINGS <br /> t n <br /> 16 A. All castings shall be sound and free from shrinkage crack, blow holes, and other defects. <br /> is All fins and burnt sand must be removed. Excessive porosity and spongy surfaces will <br /> 20 constitute causes for rejection. The Engineer shall be final judges as to whether the <br /> 21 defects present are sufficient to cause rejection. <br /> 22 <br /> 23 B. No welding or patching of defects in castings will be permitted unless authorized by the <br /> ' 24 Engineer. Any such welding or patching done without the Engineer's consent shall be <br /> 25 cause for rejection. <br /> 26 <br /> ' 27 C. All castings shall be true to form and dimensions shown on the Drawings. After inspection <br /> 26 and prior to shipping, all machined surfaces shall be coated with a blue rust inhibitive <br /> 29 lacquer, or other approved material which can be easily removed, unless otherwise <br /> 30 specified. <br /> i 3, <br /> 32 D. The dimensions of the finished castings shall not be less than the specified dimensions. <br /> 33 Castings shall not be more than seven and one-half percent overweight. Large castings <br /> ' 34 shall be suspended and hammered over their entire area. No cracks, flaws, or other <br /> 35 defects shall appear after such hammering. <br /> 36 <br /> 37 E. Castings shall be provided with adequate continuous fillets cast in place in all re-entrant <br /> ' 36 angles. The radius of curvature of the exposed surface of a fillet shall define the size of <br /> 39 the fillet. The size of fillets shall not be less than one-half (1/2) of the thickness of the <br /> 40 thinnest adjoined member nor less than one-half (1/2) inch. <br /> 41 <br /> 42 F. Iron castings shall be dipped or painted with asphalt which will form a touch, tenacious, <br /> 43 non-scaling coating which does not have a tendency to become brittle when cold or sticky <br /> ' 44 when hot. <br /> 45 <br /> 46 G. The covers and seats shall be machined so that the cover sits evenly and firmly in the <br /> 47 frame. <br /> ' 48 <br /> as 2.04 CONNECTIONS <br /> 50 <br /> ' 51 A. Provide bolts and washers and sizes required for completion of field erection. <br /> 52 <br /> ' METAL FABRICATIONS <br /> 062794 05500-3 <br />