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WhenHOOSIERCRANEinstalls runway beamsand ASCE rail, we conform to the specifications given by the Crane Manufacturers Association of America (CMAA). A copy of the specification tolerances isattached. It is imperativethat these be met for a crane to operate properly. We use only the highest quality steel and experienced Union Ironworkers to ensure that the runways fully comply with these specifications. We also may use slotted holes rather than round for easy field alignment and adjustment. Improperly installed runways can cause premature wear on the crane wheels and other components.Thismay void anywarranty claims.

As part of our installation where we do not supply the runway beamsand/or the ASCE rail, we first check the alignment to confirm that they are properly installed. If the runway beams and/or the ASCE rail are not compliant to the CMAA specifications, the situation will need to be remedied before the installation of the ASCE rail and/or the crane can be completed by HOOSIERCRANE.

Should there be any further questions please feel free to call. We would welcome the opportunity to further discuss our proposal with you. Thank you again for the opportunity.

Item Overall Tolerance Maximum Rate of Change
Span 3/16" 1/4" in 20'
Straightnes 3/8" 1/4" in 20'
Elevation 3/8" 1/4" in 20'
Rail to Rail Elevation 3/16" 1/4" in 20'
Adjacent Beams 1/8"
Rail Runway Girder Centerline 1/8" in 20'
Rail Separation 1/16" between sections