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2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2012 SAE International All rights reserved. No part of this pub
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4、outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J1257_201202SURFACEVEHICLERECOMMENDEDPRACTICEJ1257 FEB2012 Issued 1979-04Reaffirmed
5、2012-02 Superseding J1257 OCT1980 Rating Chart for Cantilevered Boom Cranes RATIONALEJ1257 has been reaffirmed to comply with the SAE five-year review policy. SAE J1257 Reaffirmed FEB2012 Page 2 of 34 SAE J1257 Reaffirmed FEB2012 Page 3 of 34 REAFFIRMED BY THE SAE CRANES AND LIFTING DEVICES COMMITTE
6、E SAE J1257 Reaffirmed FEB2012 Page 4 of 34 SAE J1257 Reaffirmed FEB2012 Page 5 of 34 SAE J1257 Reaffirmed FEB2012 Page 6 of 34 SAE J1257 Reaffirmed FEB2012 Page 7 of 34 SAE J1257 Reaffirmed FEB2012 Page 8 of 34 SAE J1257 Reaffirmed FEB2012 Page 9 of 34 SAE J1257 Reaffirmed FEB2012 Page 10 of 34 SAE
7、 J1257 Reaffirmed FEB2012 Page 11 of 34 SAE J1257 Reaffirmed FEB2012 Page 12 of 34 SAE J1257 Reaffirmed FEB2012 Page 13 of 34 SAE J1257 Reaffirmed FEB2012 Page 14 of 34 SAE J1257 Reaffirmed FEB2012 Page 15 of 34 SAE J1257 Reaffirmed FEB2012 Page 16 of 34 SAE J1257 Reaffirmed FEB2012 Page 17 of 34 SA
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